| Entries |
| Document | Title | Date |
|---|
| 20080236276 | Apparatus and method for determining density of insulation - An apparatus for determining the density of insulation in a cavity of a structure that senses a force of the insulation against the sensor. The force is used to determine the density of the insulation, which, in turn, is used to determine the thermal resistance or R-value of the insulation. The apparatus may include a fixture for supporting the sensor and holding the sensor in the substantially fixed position. A method for determining the density of loose-fill, blown-in-place insulation in a wall cavity by the use of a sensor is that measures a force exerted on the sensor by the insulation. The measured force is used to determine the density of the insulation. The thermal resistance of the insulation is determined from the known cavity depth and insulation density. | 10-02-2008 |
| 20090090180 | Method of Measuring a Set Cement Density and Settling Properties - An improved method for measuring the density and settling properties of cement slurries. The cement slurry is stirred in a consistometer and heated to a predetermined temperature. The stirring of the cement slurry is then halted and the cement slurry is cooled. The cement slurry is then removed from the consistometer. | 04-09-2009 |
| 20100000318 | Method for determining cop generation factors for single-crystal silicon wafer - A whole determination area of a targeted wafer is concentrically divided in a radial direction, COP density is obtained in each divided determination segment, a maximum value of the COP density is set as COP density | 01-07-2010 |
| 20100083752 | APPARATUS FOR ASCERTAINING AND/OR MONITORING A PROCESS VARIABLE OF A MEDUIM - An apparatus for ascertaining and/or monitoring a process variable, especially density of a medium. The apparatus includes: an exciting/receiving unit, which excites a mechanically oscillatable unit to execute mechanical oscillations and which receives the mechanical oscillations; an electronics unit, which applies to the exciting/receiving unit an electrical, exciter signal, and which obtains from the exciting/receiving unit an electrical, received signal. The electronics unit produces the exciter signal in such a manner, that, between the received signal and the exciter signal, a phase difference equal to a desired value of phase difference results, at which effects of changes of viscosity on mechanical oscillations of the mechanically oscillatable unit are negligible, and that the desired value of phase difference is predetermined as a function of the ratio of impedance of the exciting/receiving unit to the input impedance of the electronics unit. | 04-08-2010 |
| 20100089149 | SYSTEM AND PROCESS FOR NON-DESTRUCTIVE DENSITY AND MOISTURE INSPECTION - A non-destructive inspection system having a density and moisture detection system for use with the automated production of liquid filled pellets, including products having liquid filled pellets embedded in other materials. The inspection system may also have a micro controller for product detection, inspection, and rejection. The inspection system is able to be incorporated within the production line so as not to affect productivity. | 04-15-2010 |
| 20100095763 | TEMPERATURE COMPENSATED DENSITY SENSING PROCESS AND DEVICE - A total dissolved solids measurement process and device are provided that facilitates total dissolved solids sensing of a subject fluid via relative buoyancy levels of separate float bodies; one buoyed by the subject fluid of varying total dissolved solids and temperatures and another buoyed by a reference fluid of constant total dissolved solids but of a varying temperature matching the subject fluid. The equal temperature baths of the subject fluid and the reference fluid as well as geometrical shape and weighting of the floats conveys the total dissolved solids as the difference in buoyancy levels of the floats. This difference in buoyancy levels is of further benefit for activation of sundry controls. | 04-22-2010 |
| 20100154535 | Method and apparatus for trapping single particles in microfluidic channels - Methods and apparatus for improving measurements of particle or cell characteristics, such as mass, in Susppended Microchannel Resonators (SMR's). Apparatus include in particular designs for trapping particles in SMR's for extended measurement periods. Methods include techniques to provide differential measurements by varying the fluid density for repeated measurements on the same particle or cell. | 06-24-2010 |
| 20100236326 | METHOD FOR DETERMINING THE CHARACTERISTICS OF CRUDE OILS AND MIXTURES OF CHAIN MOLECULES BY DIFFUSION, RELAXATION AND DENSITY MEASUREMENTS - The diffusion coefficients and relaxation times of mixtures of alkanes follow simple scaling laws based on the chain length of the constituents and the mean chain length of the mixture. These scaling laws are used to determine chain sizes in a mixture from the distribution of the diffusion coefficients. These scaling laws can be used to determine the mean chain lengths (or chain lengths) of a sample (alkanes or mixtures of alkanes) and therefore the constituents of the sample. | 09-23-2010 |
| 20100288043 | Method and apparatus for extended time and varying environment measurements of single particles in microfluidic channels - Methods and apparatus for improving measurements of particle or cell characteristics, such as mass, in Suspended Microchannel Resonators (SMR's). Apparatus include in particular designs for trapping particles in SMR's for extended measurement periods and for changing the fluid properties within the SMR during the extended periods. Methods include techniques to provide for cell growth over time and over time in response to changing fluid properties to aid in determining parameters such as drug resistance and drug susceptibility. | 11-18-2010 |
| 20110000298 | Differential torque densitometer - A densitometer suitable for fluid measurements in remote, hostile environments comprises one or more pairs of matched weight masses housed within a tube and having respectively different densities. When immersed in the subject fluid, the buoyancy differential between the masses is converted to a proportional torque oriented about an axis aligned substantially parallel with a pipe bore. The torque is transferred through a calibrated environmental isolation cylinder to an electric property sensor positioned in a protected environment. A proportionalized electric property signal is transmitted to a value reading station. | 01-06-2011 |
| 20110185809 | UNIVERSAL FLASH SYSTEM AND APPARATUS FOR PETROLEUM RESERVOIR FLUIDS STUDY - A flash system and method is disclosed to control the rate of flashing a reservoir fluid sample from reservoir conditions to a given pressure and temperature in order to produce a liquid and a gas phase of the sample. The flash system comprises a flash apparatus including a separating chamber, a metering valve positioned at an inlet of the separating chamber, and a gas flow meter positioned at an outlet of the separating chamber. A pump is provided to displace the sample from a sample chamber to the flash apparatus, wherein the pump speed and the discharge rate of the metering valve can be automatically controlled. The flash system may be used in a laboratory environment and at the site of an oilfield reservoir. The present disclosure provides a universal flash system and method that can limit operator actions to a minimum of simple operations to ensure the repeatability of the process independent of the operator's skill. | 08-04-2011 |
| 20110197670 | METHOD AND APPARATUS FOR MEASURING METAL PORTION IN DROSS - Method and apparatus for determination of portion of pure metal in dross from a dross source, whereby the metal portion in the dross is determined by measuring the dross density and calculating the metal portion in accordance with the formula m%=k−ρ+a, where m% is percentage pure metal, ρ is the dross density and k and a are empirical constants. In accordance with the invention, the apparatus comprises a closed container ( | 08-18-2011 |
| 20110203367 | Piezoelectric coagulation sensors - This invention provides methods and devices to measure physical characteristics of sample fluids. Samples are introduced into a sample chamber in contact with a mechanically oscillating working member. The vibrations are received by a piezoelectric sensor transducer and correlated to a sample characteristic, such as viscosity or density. The devices include a sample chamber in contact with one or more working members actuated by a piezoelectric actuator and/or monitored by a piezoelectric sensor. | 08-25-2011 |
| 20110296911 | METHOD AND APPARATUS FOR MEASURING THE DENSITY OF A FLOWING FLUID IN A CONDUIT USING DIFFERENTIAL PRESSURE - A method and apparatus for determining the specific gravity of a monophasic or polyphasic fluid flowing in a conduit. The apparatus employs an square wave shaped tube known for its effectiveness in differential pressure measurements. The apparatus is configured such that the differential pressure is measured in crosswise manner Pressure taps comprising high and low pressure taps for a respective pressure sensing device are associated with a different leg. The apparatus has also been found to be effective for determining flow rate of the fluid in the conduit using differential pressure measurements. | 12-08-2011 |
| 20120000283 | Lightweight Portable Moisture Traps For Use With Vacuum Pumps - A portable moisture trap for use with a vacuum pump includes: a housing; a cooling chamber positioned at least partially within the housing including a first inlet port and a second outlet port; a lid that sealably attaches to a top portion of the cooling chamber to seal the cooling chamber; a heat sink residing under the cooling chamber; a thermoelectric device having an upper cooling side and a lower heat generating side residing between the cooling chamber and the heat sink; a fan oriented to blow air upwardly toward the heat sink; and a baffle extending downwardly in the cooling chamber from a location proximate the lid to a location proximate an inner bottom surface of the cooling chamber, with the baffle configured to define a physical barrier to urge air received through the first port to flow down toward the inner bottom surface of the cooling chamber before exiting through the second port, to thereby remove moisture from air traveling through the cooling chamber in response to a vacuum pump in fluid communication with the second port. | 01-05-2012 |
| 20120042722 | Dehydration Sensors with Ion-Responsive and Charged Polymeric Surfactants - A lateral flow assay device for determining the relative ionic strength of urine is described. The device includes a buffering zone having a polyelectrolyte disposed therein, and an indicator zone having a pH indicator non-diffusively immobilized therein, the indicator zone being separate from the buffering zone and positioned adjacent to and in fluid communication with the buffering zone. A detection zone is part of the buffering zone, and has a buffering component comprising a weak polymeric acid and weak polymeric base with a pKa≦10 | 02-23-2012 |
| 20120085166 | DEVICE FOR MEASURING THE CHARACTERISTICS OF A FLOW WITHIN A PIPE - A device for measuring the physical characteristics of a flow within a pipe is disclosed. In one exemplary embodiment, the device comprises a plug attached to two or more strut assemblies, each strut assembly comprising a forward strut, a rearward strut, and a skid having an inner surface that faces the plug, and one or more sensors located on the inner surface of the skid. | 04-12-2012 |
| 20120103091 | METHOD AND DEVICE FOR DETECTING CONTAMINANTS IN A FLUID - The invention relates to a method and a device for detecting contaminants in a fluid ( | 05-03-2012 |
| 20120111109 | Solids Circulation System and Method for Capture and Conversion of Reactive Solids - A solids circulation system receives a gas stream containing char or other reacting solids from a first reactor. The solids circulation system includes a cyclone configured to receive the gas stream from the first reactor, a dipleg from the cyclone to a second reactor, and a riser from the second reactor which merges with the gas stream received by the cyclone. The second reactor has a dense fluid bed and converts the received materials to gaseous products. A conveying fluid transports a portion of the bed media from the second reactor through the riser to mix with the gas stream prior to cyclone entry. The bed media helps manipulate the solids that is received by the cyclone to facilitate flow of solids down the dipleg into the second reactor. The second reactor provides additional residence time, mixing and gas-solid contact for efficient conversion of char or reacting solids. | 05-10-2012 |
| 20120137769 | Systems And Methods For Evaluating A Golf Ball Design - Systems and methods for evaluating a golf ball design are disclosed. In one implementation, a method for evaluating a golf ball design may comprise designing a proposed golf ball having a size and dimple design; determining a specific gravity of the proposed golf ball; selecting a material for a test golf ball that will mimic the specific gravity of the proposed golf ball when the material is formed into a test golf ball having substantially the same size, shape, and dimple pattern as the proposed golf ball, but having a predetermined construction differing from the proposed golf ball; forming the selected material into the size and dimple design of the proposed golf ball to form the test golf ball; and testing the test golf ball to evaluate the golf ball design. | 06-07-2012 |
| 20120137770 | Systems And Methods For Evaluating A Golf Ball Design - Systems and methods for evaluating a golf ball design are disclosed. In one implementation, a method for evaluating a golf ball design may comprise designing a proposed golf ball having a size and dimple design; determining a specific gravity of the proposed golf ball; selecting a material for a test golf ball that will mimic the specific gravity of the proposed golf ball when the material is formed into a test golf ball having substantially the same size, shape, and dimple pattern as the proposed golf ball, but having a predetermined construction differing from the proposed golf ball; forming the selected material into the size and dimple design of the proposed golf ball to form the test golf ball; and testing the test golf ball to evaluate the golf ball design. | 06-07-2012 |
| 20120260731 | In-Line Fuel Properties Measurement Unit - An in-line fuel properties measurement unit (IFPMU) ( | 10-18-2012 |
| 20120304763 | OPTICAL METHOD AND APPARATUS FOR DETERMINING A CHARACTERISTIC SUCH AS VOLUME AND DENSITY OF AN EXCAVATED VOID IN A CONSTRUCTION MATERIAL - One or more methods and apparatuses for determining a characteristic, such as volume, of an excavated void of a construction material are provided. The one or more methods may include excavating a void defined in a construction material, interacting with the void using a material interacting device for determining at least one measurement thereof, manipulating the at least one measurement to determine a characteristic of the void such as the volume thereof, obtaining at least one measurement of the material, and determining a characteristic of the void based on the measurements obtained. The apparatus may include at least one material interacting device configured to interact with a surface of a construction material and a surface of a void defined therein for determining at least one respective measurement thereof and manipulate a plurality of the at least one measurement so as determine a characteristic of the void. | 12-06-2012 |
| 20130036817 | MEANS AND METHOD FOR MONITORING THE FLOW OF FLUID - The invention relates to an means and method for monitoring the flow of a fluid. The invention relates to an electromagnetic flow meter and method for measuring the axial velocity profile of a conducting fluid. The conducting fluid may be a conducting single phase fluid or a conducting continuous phase of a multiphase fluid. The conducting fluid may have a uniform flow profile or a non-uniform flow profile. The electromagnetic flow meter and method measure the axial velocity profile of a conducting fluid by dividing the flow cross section into multiple pixels and determining the axial velocity of the conducting fluid in each pixel. Having. derived the axial velocity profile, the electromagnetic flow meter and method may further derive the volumetric flow rate of the conducting fluid. The electromagnetic flow meter and method may be suitable for measuring the axial velocity profile and optionally the volumetric flow rates of each phase of a multiphase fluid. | 02-14-2013 |
| 20130047721 | METHOD OF EVALUATING POSITIVE ELECTRODE ACTIVE MATERIAL - A method of evaluating a positive electrode active material has a density ratio-determining step of determining a ratio of an apparent density Da of the positive electrode active material to a theoretical density Db of the positive electrode active material. For example, when the positive electrode active material contains no closed space in the positive electrode active material, such as closed pores of the positive electrode active material, the ratio (Da/Db) of the apparent density Da of the positive electrode active material to the theoretical density Db of the positive electrode active material will be a value close to 1; however, the more the closed space such as the closed pores exists in the positive electrode active material, the smaller the ratio (Da/Db). Thus, the ratio (Da/Db) can serve as an indicator for measuring the degree of density of the positive electrode active material. | 02-28-2013 |
| 20130104649 | SENSOR DEVICE | 05-02-2013 |
| 20130133419 | MAGNETIC LEVITATION FOR FORENSICS ANALYSIS - A method for determining the density of contact trace objects with magnetic levitation is described. The density of samples of glitter and of gunpowder was determined, and the feasibility of magnetic levitation as a possible means of characterizing forensic-related evidence is discussed. The magnetic levitation device (composed of two permanent magnets with like poles facing) and the method described provides a means of accurately determining the density of trace objects that is inexpensive, rapid, verifiable, provides documentation, is independent of the specific apparatus or analyst, and provides numerical values (rather than a comparison between questioned and known samples) that may be entered into a searchable database. | 05-30-2013 |
| 20130186197 | METHODS TO CHARACTERIZE SAG IN FLUIDS - Systems and methods for direct and indirect measurement of the density of a fluid which exhibits sag characteristics is disclosed. The sag measurement system includes a test container for holding a fluid mixture to be analyzed and a suction port on the test container. A pump is coupled to the suction port for circulating the fluid mixture from the test container through a circulation loop. A measurement device is coupled to the circulation loop and a return port directs the fluid mixture from the circulation loop back to the test container at substantially the same vertical location as the suction port. The fluid mixture flowing through the circulation loop passes through the measurement device before returning to the test container through the return port. The measurement device is operable to monitor the particle distribution of the fluid mixture as it changes due to gravity. | 07-25-2013 |
| 20130319109 | MATERIALS-TESTING MULTISENSOR AND METHOD FOR TESTING OF MATERIALS WITH A MATERIALS-TESTING MULTISENSOR - A material testing multisensor comprising at least one receiving sensor ( | 12-05-2013 |
| 20140076047 | TANK COMMIDITY VOLUME MEASUREMENT APPARATUS AND METHOD - An apparatus and method for measuring the quantity of material in a tank such as a commodity air cart of an air seeder in which a sensor or sensors are used to measure the distance to the surface of the material. The distance data is then used to determine a surface profile of the material from which the volume of material is calculated. The volume is converted to weight using known material density information. | 03-20-2014 |
| 20140096605 | MATERIAL PROPERTY GAUGES AND RELATED METHODS FOR DETERMINING A PROPERTY OF A MATERIAL - The subject matter described herein includes methods, systems, and computer program products for measuring the density of a material. According to one aspect, a material property gauge includes a nuclear density gauge for measuring the density of a material. A radiation source adapted to emit radiation into a material and a radiation detector operable to produce a signal representing the detected radiation. A first material property calculation function may calculate a value associated with the density of the material based upon the signal produced by the radiation detector. The material property gauge includes an electromagnetic moisture property gauge that determines a moisture property of the material. An electromagnetic field generator may generate an electromagnetic field where the electromagnetic field sweeps through one or more frequencies and penetrates into the material. An electromagnetic sensor may determine a frequency response of the material to the electromagnetic field across the several frequencies. | 04-10-2014 |
| 20140137646 | PAVING-RELATED MEASURING DEVICE INCORPORATING A COMPUTER DEVICE AND COMMUNICATION ELEMENT THEREBETWEEN AND ASSOCIATED METHOD - A system configured to determine a property of a paving-related material is provided. The system includes a measuring device configured for measuring a property of a paving-related material and a cellular computer device configured for being in communication with and receiving data from the measuring device. | 05-22-2014 |
| 20140182371 | NON-RADIOACTIVE DENSITY MEASUREMENT IN OILFIELD OPERATIONS - A densitometer system is described. The densitometer system is provided with a tube, a stand, a torsion measuring device and a data acquisition system. The tube has a first end, an inlet section at the first end of the tube, and an outlet section at the first end of the tube. The tube has a torque arm extending between the inlet section and the outlet section. The torque arm has a first section extending away from the first end and a second section extending toward the first end. The stand has a base and at least one leg connected to the base. The at least one leg is connected to the first end of the tube to support the tube a distance from the base. The torsion measuring device is connected to at least one of the inlet section and the outlet section of the tube. The torsion measuring device measures a quantity of torsion strain in the at least one of the inlet section and the outlet section. The data acquisition system calculating a density of fluid within the tube based upon the measured quantity of torsion strain. | 07-03-2014 |
| 20140238125 | IMPACTION DENSITOMETER - Disclosed is an impaction densitometer having a chamber configured to receive a particle; a beam generator configured to emit a beam; a detector configured to receive the beam and convert a change in intensity of the received beam into an electrical signal corresponding to a particle volume; an impact sensor positioned a known distance from the beam and configured to measure a particle momentum as a function of an impact energy transferred from the particle to the impact sensor; a velocity calculator configured to calculate a particle velocity based on a time it takes the particle to pass through the beam and strike the impact sensor; a mass calculator configured to calculate a particle mass as a function of the particle momentum and velocity; and a density calculator configured to calculate a particle density as a function of the particle mass and volume. | 08-28-2014 |
| 20140251007 | TANDEM SCOOP AND METHOD - The present invention describes a tubular scoop that may be utilized with various assemblies for sampling fluid in a pipeline. The scoop includes a bend with a bend radius that is from two to four times the diameter of the scoop. The scoop defines a scoop face that is parallel to an axis of the tubular of the scoop. The scoop is mounted with a threaded connection that seals around the tubular. An additional seal comprises a compression nut that allows orientation of the scoop within the pipeline whereupon the scoop orientation is fixed by tightening the compression nut. | 09-11-2014 |
| 20140326067 | METHOD OF DETERMINING FABRIC TYPE OF A LAUNDRY LOAD IN A LAUNDRY TREATING APPLIANCE - A method of determining a fabric type for a laundry load can include comparing the density of the laundry load in a first wetted state, which may be a dry state or a partially saturated state, to the density of the laundry load in a second wetted state, which may be a partially saturated, fully saturated, or beyond fully saturated state, and determining a fabric type based on the comparison. | 11-06-2014 |
| 20150020588 | SYSTEMS AND METHODS FOR DETERMINING SPECIFIC GRAVITY AND MINEROLOGICAL PROPERTIES OF A PARTICLE - A system includes a particulate material sample that contains a fluid medium and a plurality of particles dispersed in the fluid medium. The system further includes a particle analysis apparatus having a sample cell and sample delivery means for delivering the particulate material sample to the sample cell, wherein the particle analysis apparatus is adapted to obtain particle information on at least one particle in that particulate material sample while the at least one particle is in the sample cell. Furthermore, the system also includes fluid manipulation means for manipulating movement of the fluid medium while the particle analysis apparatus is obtaining the particle information on the at least one particle, and a data processing apparatus that is adapted to determine a specific gravity of the at least one particle based on the obtained particle information. | 01-22-2015 |
| 20150107356 | Apparatus for Determining and/or Monitoring a Limit Value of a Process Variable - Apparatus for determining and/or monitoring at least one limit value of a process variable of a medium in a container, comprising at least one sensor unit for registering a measured value dependent on the process variable and at least one electronics unit for producing a measurement signal dependent on the process variable. The invention is distinguished by features including that the apparatus is embodied to draw energy via a voltage output and a digital input of a recorder apparatus or a process control system. | 04-23-2015 |
| 20150114108 | METHOD AND APPARATUS FOR MEASURING METAL PORTION IN DROSS - An apparatus for determination of the portion of pure metal in dross from a dross source, whereby the metal portion in the dross is determined by measuring the dross density and calculating the metal portion in accordance with the formula m% =k·ρ+a, wherein m% is percentage pure metal, p is dross density and k and a are empirical constants. The apparatus includes a closed container configured to supply and remove gas, and for reading the temperature and amount of gas supplied to the container. | 04-30-2015 |
| 20150122016 | INLINE RHEOLOGY/VISCOSITY, DENSITY, AND FLOW RATE MEASUREMENT - A system of performing inline measurements of flow rate, density, and rheology of a flowing fluid. The system includes a rheology measurement subsystem, a density measurement subsystem, and a pressure sensor for measuring the pressure of the test fluid within the vertical tube at a location y | 05-07-2015 |
| 20150135829 | Levitation of Materials in Paramagnetic Ionic Liquids - This present disclosure describes the utility of paramagnetic ionic liquids for density-based measurements using magnetic levitation (MagLev), The physical properties of paramagnetic ionic liquids, including density, magnetic susceptibility, glass transition temperature, melting point, thermal decomposition temperature, viscosity, and hydrophobicity can be tuned by altering the cation or anion. | 05-21-2015 |
| 20150330873 | PIPELINE SAMPLING SYSTEM AND METHOD - The present invention describes a sampling system and densitometer system for sampling fluids from a pipeline. A flow loop is set up which continuously collects fluid from the pipeline and then returns the fluid with a minimum fluid flow rate so that the fluid is representative of fluid flowing through the pipeline at the time of sampling. For each sample, pressurized fluid is taken from the flow loop and directed to a pressurized sampling chamber. The sampling chamber is then directed by gravity to an removable sample container, which may pressurized or unpressurized, in each sampling cycle. | 11-19-2015 |
| 20150344376 | TAGGANT FOR CEMENT AUTHENTICATION - A traceable cement mixture includes a volume of cementitious material and a taggant disposed within the volume of cementitious material. The taggant includes data relating to a characteristic of the volume of cementitious material. | 12-03-2015 |
| 20160025265 | ACTIVE MONITORING OF HEAVY WEIGHT LUBRICATION OIL - A system for wellbore operations can be adapted to generate an alarm signal upon ingress of a contaminant into a heavy weight lubrication oil of an equipment prior to operational failure of the equipment. In an embodiment, the system can include a sensor. In an embodiment, the sensor can be adapted to sense a viscosity of the heavy weight lubrication oil, a density of the heavy weight lubrication oil, a dielectric of the heavy weight lubrication oil, a temperature of the heavy weight lubrication oil, or a combination thereof. | 01-28-2016 |
| 20160153883 | METHOD FOR DESIGN AND CONTROL OF PROPERTIES OF SIMULATED FOOD PARTICLES FOR PROCESS MONITORING AND VALIDATION OF ASEPTICALLY PROCESSED MULTIPHASE FOODS AND BIOMATERIALS | 06-02-2016 |
| 20160178499 | DUAL COMPONENT DENSITY SAMPLER APPARATUS | 06-23-2016 |
| 20160252440 | Systems, Methods, and Apparatuses for Monitoring and/or Controlling the Density of a Fluid | 09-01-2016 |
| 20180023268 | TEST SYSTEM AND TEST METHOD FOR DETECTING CEMENT CONTENT OF CEMENT MIXING PILE BODY IN REAL TIME | 01-25-2018 |
| 20080216569 | Oscillatory Measurement Device With Visual Recorder - An oscillatory measurement system is disclosed that includes a visual recorder for detecting irregularities such as bubbles in a fluid to be measured. Techniques are provided for scanning the recorder across the oscillatory tube. | 09-11-2008 |
| 20080223129 | Apparatus and method for providing a density measurement augmented for entrained gas - A flow measuring system combines a density measuring device and a device for measuring the speed of sound (SOS) propagating through the fluid flow and/or for determining the gas volume fraction (GVF) of the flow. The GVF meter measures acoustic pressures propagating through the fluids to measure the speed of sound α | 09-18-2008 |
| 20080245147 | SYSTEM FOR AND METHOD OF MONITORING PROPERTIES OF A FLUID FLOWING THROUGH A PIPE - A system and method for determining a fluid property for a fluid flowing in a pipe may include sensing baseline vibrations when test fluids with known values for a fluid property (e.g., fluid density or fluid viscosity) flow through the pipe, or computer modeling the baseline vibrations. The baseline vibrations are analyzed via cross-correlation and/or deconvolution to separate the fluid filled pipe's baseline combined structural response from excitation and base coupling effects. During field or other operations, sensors may take vibrational readings along the pipe when an operational fluid (e.g., drilling fluid) flows through the pipe. The operational vibrations may be analyzed via cross-correlation and/or deconvolution to separate the operational combined structural response of the fluid filled pipe from excitation and base coupling effects. The baseline and operational structural responses may compared. Similarities or differences in the structural responses may be used to determine fluid properties of the operational fluid. | 10-09-2008 |
| 20080257036 | Density and Viscosity Sensor - A density and viscosity sensor | 10-23-2008 |
| 20090084178 | NON-INVASIVE FLUID DENSITY AND VISCOSITY MEASUREMENT - The noninvasively measurement of the density and viscosity of static or flowing fluids in a section of pipe such that the pipe performs as the sensing apparatus, is described. Measurement of a suitable structural vibration resonance frequency of the pipe and the width of this resonance permits the density and viscosity to be determined, respectively. The viscosity may also be measured by monitoring the decay in time of a vibration resonance in the pipe. | 04-02-2009 |
| 20090095072 | PIEZOELECTRIC/ELECTROSTRICTIVE MEMBRANE TYPE SENSOR - Disclosed is a piezoelectric/electrostrictive membrane type sensor | 04-16-2009 |
| 20090100925 | SYSTEM AND METHOD FOR COATING FLEXURAL MECHANICAL RESONATORS - An illustrative embodiment is disclosed, including but not limited to an apparatus for estimating a property of a fluid downhole, including but not limited to a piezoelectric flexural mechanical resonator disposed in the fluid downhole; an electrode embedded in the piezoelectric flexural mechanical resonator; and a substantially transparent conductive coating covering the piezoelectric flexural mechanical resonator. A method is disclosed for estimating a property of a fluid downhole, the method including but not limited to embedding an electrode in a piezoelectric flexural mechanical resonator; coating the piezoelectric flexural mechanical resonator with a substantially transparent conductive coating; and disposing a piezoelectric flexural mechanical resonator disposed in the fluid downhole. | 04-23-2009 |
| 20090120183 | Piezoelectric/electrostrictive membrane sensor - Disclosed is a piezoelectric/electrostrictive membrane sensor | 05-14-2009 |
| 20090193889 | MEASUREMENT TOOL AND METHOD OF USE - This invention relates to a measurement tool, and in particular to a measurement tool for use in determining the density and/or viscosity of a stationary or moving fluid. The measurement tool has been designed for use in borehole applications during the location and exploitation of oil and gas reserves. The measurement tool has a resilient pipe with a substantially uniform cross-section along its length, and the fluid is located within the pipe. The pipe carries an exciter which is connected to a signal generator, the exciter and signal generator being adapted to impart transverse and/or rotational oscillations to the pipe. Measuring the frequency of the oscillations can be used to determine the density and/or the viscosity of the fluid within the pipe. | 08-06-2009 |
| 20090320588 | SYSTEM AND METHOD FOR MEASURING OR CHARACTERIZING PROPERTIES OF ULTRA-FINE OR COHESIVE POWDERS USING VIBRATIONS - The present disclosure provides for systems and methods for measuring and/or characterizing properties of ultra-fine or cohesive powders. More particularly, the present disclosure provides for systems and methods for measuring and/or characterizing packing density and/or flowability of ultra-fine or cohesive powders using vibrations. In one embodiment, the present disclosure provides for systems and methods for improved characterization or specification of powder or packing density as a function of consolidation stress. In an exemplary embodiment, the present disclosure also provides for systems and methods for improved characterization or definition of a parameter which indicates the flow property of the powder. | 12-31-2009 |
| 20110094300 | COLLECTION MEDIUM AND COLLECTION AMOUNT MEASURING APPARATUS, AND MEASURING METHOD, PROGRAM, AND RECORDING MEDIUM OF THE SAME - The present invention precisely measures characteristic values (such as the absorption coefficient) of an electromagnetic wave when a density of a PM in a DPF which collects the PM in an exhaust gas. The DPF receives the exhaust gas, and collects the PM in the exhaust gas. The DPF includes first hole portions which are open at a first end on a side for receiving the exhaust gas, and are closed at a second end on a side opposite to the first end, second hole portions which are closed at the first end and are open at the second end, and third hole portions which are closed at the first end. The first hole portion and the second hole portion are adjacent to each other. The third hole portions are adjacent to each other. The PM in the exhaust gas passing through partition walls which partition the first hole portion and the second hole portion adjacent to each other is collected by the partition walls. | 04-28-2011 |
| 20110167906 | TORSIONAL SENSOR, METHOD THEREOF, AND SYSTEM FOR MEASUREMENT OF FLUID PARAMETERS - A torsional sensor for sensing at least one parameter of a fluid is disclosed. The torsional sensor includes a torsional portion coupled to a reference portion and including a plurality of projections extending outward and spaced apart from each other. At least a portion of the torsional sensor is mountable for immersion in the fluid and operable to propagate a torsional wave that interacts with the fluid along the at least portion of the torsional sensor so as to affect propagation of the torsional wave in a manner dependent on the at least one parameter of the fluid. | 07-14-2011 |
| 20110167907 | Measuring transducer of vibration-type - The measuring transducer comprises: a transducer housing, of which an inlet-side, housing end is formed by means of a flow divider including four flow openings spaced, and an outlet-side, formed by means of a flow divider including four flow openings spaced, from one another. A tube arrangement including four curved measuring tubes connected to the flow dividers for guiding flowing medium along flow paths connected in parallel. Each measuring tubes opens with an inlet-side, measuring tube end into one of the flow openings of the flow divider and with an outlet-side, measuring tube end into one the flow openings of the flow divider. The two flow dividers are embodied and arranged in the measuring transducer, so that the tube arrangement extends both between a first and a second of the measuring tubes and between a third and a fourth of the measuring tubes. An imaginary longitudinal-section plane, with respect to which the tube arrangement is mirror symmetric and perpendicular to the imaginary longitudinal-section plane, an imaginary longitudinal-section plane, with respect to which the tube arrangement likewise is mirror symmetric. An electromechanical exciter mechanism of the measuring transducer serves for producing and/or maintaining mechanical oscillations of the four measuring tubes. | 07-14-2011 |
| 20110167908 | Device For The Gravimetric Detection Of Particles In A Fluid Medium, Comprising An Oscillator Over Which A Fluid Stream Flows, Production Process And Method Of Employing The Device - The invention provides a device for the gravimetric detection of particles in a fluid medium, simultaneously providing a high quality factor, easier operating conditions, small size and low production costs. For this purpose, the subject of the invention is a device for the gravimetric detection of particles in a fluid medium, comprising a flat electromechanical oscillator ( | 07-14-2011 |
| 20110167909 | System and Method for Measurement Using a Visual Recorder - An oscillatory measurement system is disclosed that includes a visual recorder for detecting irregularities such as bubbles in a fluid to be measured. Techniques are provided for scanning the recorder across the oscillatory tube. | 07-14-2011 |
| 20110167910 | APPARATUS AND METHOD FOR DETECTING A PROPERTY OF A FLUID - An apparatus comprises a tensioned sample tube that receives a fluid sample, the tensioned sample tube has a pre-determined tension applied thereto. A vibration source and a vibration detector are coupled to the tensioned sample tube. A method of estimating a property of a fluid comprises tensioning a sample tube to a predetermined tension. A sample of the fluid is received in the tensioned sample tube. The tensioned sample tube is vibrated. A resonant frequency of the tensioned sample tube is detected. The property of the fluid is estimated based on the detected resonant frequency of the tensioned sample tube. | 07-14-2011 |
| 20110179860 | APPARATUS FOR DETERMINING AND/OR MONITORING A PROCESS VARIABLE OF A MEDIUM - An apparatus for determining and/or monitoring at least one process variable of a medium. The apparatus includes: at least one mechanically oscillatable unit; at least one transducer unit, which excites the mechanically oscillatable unit to mechanical oscillations based on an exciter signal and which receives the mechanical oscillations of the mechanically oscillatable unit and converts such to a received signal. The transducer unit has at least one piezoelectric element. The apparatus further includes: at least one electronics unit, which supplies the transducer unit with the exciter signal and which receives the received signal from the transducer unit; and at least one compensation element, which supplies the exciter signal to the electronics unit and from which the electronics unit receives a compensation signal. The invention provides that the compensation element has at least one at least element made at least partially of a piezoelectric material. | 07-28-2011 |
| 20110219872 | METHOD FOR OPERATING A DENSITY MEASURING DEVICE AND DEVICE FOR DENSITY MEASUREMENT - A method for operating a density measuring device having a measuring tube filled with the medium for determining the density of the medium, in which the measuring tube is incited to vibrate, the frequency of the vibration determined and the density of the medium being calculated from the determined frequency and other parameters which determine the physical-geometrical properties of the measuring tube. In particular, at least one mechanical stress of the measuring tube is determined, and with the obtained mechanical stress value, the influence of the mechanical stress of the measuring tube and/or the influence of the pressure in the medium on the determined density of the medium are or is—at least partially—taken into consideration or compensated. | 09-15-2011 |
| 20110252884 | Vibrating cylinder transducer with protective coating - The invention provides a vibrating cylinder transducer for measuring the pressure or density of a fluid medium comprising: a cylindrical vibrator, in use having at least one surface coupled to a fluid medium to be measured; a drive means for vibrating the cylindrical vibrator; a sensor for detecting the resonant frequency of the cylindrical vibrator; and an output coupled to the sensor, the output configured to provide an output signal indicative of the pressure and/or the density of the fluid medium; wherein the surface coupled to the fluid medium is coated in a corrosion resistant polymer layer. Preferably the corrosion resistant polymer layer is formed from parylene. | 10-20-2011 |
| 20110271755 | Apparatus And Methods For The Measurement Of Mass Related Parameters - Embodiments of the present invention are directed to resonating detection devices in which the sample flows through a conduit having a section in which the conduit is grouped or concentrated with the point of maximum movement. | 11-10-2011 |
| 20110271756 | Driver circuit for a measuring transducer as well as measuring system formed therewith - A driver circuit comprises: a voltage controller (UC | 11-10-2011 |
| 20120073368 | METHOD FOR THE ACCURATE MEASUREMENT OF THE DENSITY OF A SAMPLE - A method for the accurate measurement of the density of a sample using a densimeter equipped with a measurement cell, a sample-containing U-tube including a ferromagnetic member, an insulated conductive reading plate maintained at a different potential relative to the U-tube, and an electromagnetic excitation winding. The method includes the steps of transmitting a synchronised rectangular excitation signal continuously to the U-tube to cause the U-tube to vibrate at resonance frequency, the vibration being represented by a sinusoidal resonance signal; determining the resonance frequency from the variations in the voltage at the terminals of the capacitor and deducing an approximate value of the density of the sample; controlling the pulse width of the rectangular excitation signal to maintain a predefined constant amplitude of the resonance signal; and deducing a correction factor dependent on the viscosity of the sample. | 03-29-2012 |
| 20120272727 | SPRING FORCE NODAL MOUNTING METHOD FOR RESONATOR SENSOR - A resonator in the fluid for displacing the fluid has a sensing section and a non-sensing section. A compression contact member coupled to the mounting body compressively secures the resonator non-sensing section in a mounting body. The apparatus may further include a pressure feed through module received in the mounting body that is in signal communication with the resonator. | 11-01-2012 |
| 20120304762 | METHOD FOR MAKING A PYROLYTIC BORON NITRIDE ARTICLE - A method for producing a pyrolytic boron nitride (PBN) article comprises introducing a nitrogen containing gas and a boron containing gas into a heated reactor furnace under temperature and pressure conditions sufficient to form a PBN deposit and pulsing the flow of the reactant gases between an on and an off state. The method provides a multi-layered PBN article that exhibits a relatively weak bonding interface between adjacent PBN layers to allow for the layers to be peeled away from one another in a controlled manner. | 12-06-2012 |
| 20130000402 | DEVICE FOR QUANTIFYING THE DEGASSING OF A PIECE OF EQUIPMENT ARRANGED IN A VACUUM CHAMBER - A device for quantifying the degassing of a piece of equipment placed in a vacuum chamber includes a metal blade made from a ferromagnetic material including a fixed end and a free end, the blade being provided with a cooling device and a device for measuring an intrinsic temperature of the blade; an electromagnet for exciting the blade; and a measurement sensor for measuring the excitation of the free end of the blade connected to a device for acquiring measurements and for calculating at least one oscillation frequency of the free end of the blade, the acquisition and calculation device being connected to a device for calculating a surface density of a mass deposited on the blade. | 01-03-2013 |
| 20130036816 | Apparatus for determining and/or monitoring a process variable of a medium - An apparatus for determining and/or monitoring at least one process variable, especially a fill level, a density or a viscosity, of a medium in a container, including: a mechanically oscillatable structure protruding into the container during operation, with at least one oscillatory characteristic dependent on the process variable; an electromechanical transducer; and electronics, for producing an exciter signal connected to the input side of the transducer, which has a first filter, wherein the first filter filters out a wanted signal from the received signal; and which determines and/or monitors the process variable based on the wanted signal. The apparatus has high quality, disturbance signal suppression, which assures a signal transmission as uncorrupted as possible over the total wanted frequency range of the apparatus and which is effected by features including that the first filter is a band pass filter with an adjustable center frequency and the electronics includes an apparatus, which during operation sets the center frequency to the frequency of the exciter signal. | 02-14-2013 |
| 20130104648 | TORSIONAL SENSOR INCLUDING A HIGH-PRESSURE SEALING MECHANISM AND SYSTEM FOR MEASUREMENT OF FLUID PARAMETERS | 05-02-2013 |
| 20130133418 | VIBRATING DENSITOMETER INCLUDING AN IMPROVED VIBRATING MEMBER - An apparatus is provided that comprises a vibrating member ( | 05-30-2013 |
| 20130145842 | Dispersion Compensation Technique for Differential Sonar Measurement - Density Meter. - The present invention provides a novel technique for canceling substantially the effects of dispersion when two speed of sound (SOS) measurements are required on the materials within a pipe to perform a calculation or derive certain characteristics about the materials flowing in the pipe. According to some embodiments of the present invention, the apparatus may comprise a signal processor configured to receive signals containing information about two speed of sound measurements having two sets of data related to materials within a pipe; and process the two sets of data simultaneously and determine a ridge point by point difference in order to cancel substantially effects of dispersion. | 06-13-2013 |
| 20130145843 | MEASUREMENT OF SLURRY DENSITY - A method for determining the density of cement slurry in undersea drilling is disclosed. The method uses the reflection of acoustic waves from the slurry in order to determine its acoustic impedance and thus its density. | 06-13-2013 |
| 20130152677 | Method and apparatus for adjusting a density measuring device - A method for adjusting a density measuring device, wherein the method includes at least the steps of: producing a reference medium of a predeterminable density; supplying the reference medium to an adjusted, reference, density measuring device; determining the density of the reference medium with the reference density measuring device; supplying the reference medium to the density measuring device to be adjusted; registering with the density measuring device to be adjusted a measured value representing the density; and associating the measured value with the density determined with the reference density measuring device. Further an apparatus for performing the method is noted. | 06-20-2013 |
| 20130180330 | FLUID DENSITOMETER WITH TEMPERATURE SENSOR TO PROVIDE TEMPERATURE CORRECTION - A sensor for measuring a density of a fluid is provided. The sensor ( | 07-18-2013 |
| 20130263658 | Method and Apparatus for Trapping Single Particles in Microfluidic Channels - Methods and apparatus for improving measurements of particle or cell characteristics, such as mass, in Suspended Microchannel Resonators (SMR's). Apparatus include in particular designs for trapping particles in SMR's for extended measurement periods. Methods include techniques to provide differential measurements by varying the fluid density for repeated measurements on the same particle or cell. | 10-10-2013 |
| 20130333467 | Measuring Fluid Density - An apparatus includes a vibration element defining a fluidic passageway; an excitation element for exciting vibration of the vibration element; a detector for providing a signal representative of the frequency excited; and control electronics configured to determine a density of a fluid flowing through the fluidic passageway based, at least in part, on the signal provided by the detector. The vibration element is configured such that Coriolis force induced twisting of the vibration element is substantially inhibited. | 12-19-2013 |
| 20140096604 | Method and Apparatus for Trapping Single Particles in Microfluidic Channels - Methods and apparatus for improving measurements of particle or cell characteristics, such as mass, in Suspended Microchannel Resonators (SMR's). Apparatus include in particular designs for trapping particles in SMR's for extended measurement periods. Methods include techniques to provide differential measurements by varying the fluid density for repeated measurements on the same particle or cell. | 04-10-2014 |
| 20140331766 | Method For Measuring A Fluid Density Or A Fluid Viscosity - A method and device for estimating a density value ρ | 11-13-2014 |
| 20150075279 | DENSITY AND VISCOSITY SENSOR AND MEASURING METHOD - A density and viscosity sensor for measuring density and viscosity of a fluid, comprises:
| 03-19-2015 |
| 20150096368 | System, Method, and Apparatus for Determining Soil Density - A system for measuring soil density includes a plurality of signal emitters paired with signal receivers situated within the soil and below grade (e.g. from 10 to 30 feet below grade). The emitters periodically emit the signal (e.g., ultrasonic signal), some of which is reflected back by the soil. If the soil is compact and close to the emitter/receiver, the reflected signal is received after a short delay and has high signal strength. If the soil is less compact or there is a gap between the soil and the emitter/receiver, the reflected signal is received after a greater delay and/or has lower signal strength. By making several measurements of the delay and signal strength, a baseline is established. Later, periodic measurements of the delay and signal strength are made. If the delay and/or signal strength measured differs from the baseline, the soil density has likely changed. | 04-09-2015 |
| 20160054212 | A METHOD OF GENERATING A DRIVE SIGNAL FOR A VIBRATORY SENSOR | 02-25-2016 |
| 20160097703 | VIBRATING MEMBER FOR A VIBRATING DENSITOMETER - A vibrating member ( | 04-07-2016 |
| 20160109345 | VIBRATORY SENSOR AND METHOD - A vibratory sensor ( | 04-21-2016 |
| 20160109346 | DEVICE AND METHOD FOR CONTINUOUS DETECTION OF CHANGES OF DENSITY IN FLUIDS AND SOLIDS AS WELL AS USE OF THE DEVICE - A sensor is for continuous detection of minute changes of density in fluids and biological fluids, solids and semisolid bodies by use of a transducer. A method continuously detects changes of density of fluids or solids. The method can be carried out using the sensor. | 04-21-2016 |
| 20160109347 | METHOD, CIRCUIT AND FLEXURAL RESONATOR FOR MEASURING THE DENSITY OF FLUIDS - A method for determining a density of a fluid medium with a flexural oscillator whose oscillator tube is filled with the measurement fluid. Accordingly, reference is made to a period of oscillation of a free and damped oscillating flexural resonator for density determination. For this purpose, the excitation of the excitation amplifier is interrupted alternately by a switch and then switched back into the oscillating circuit. The period of the damped oscillation, together with the amplitude and/or phase, is used for the output of a viscosity-corrected density. | 04-21-2016 |
| 20160123861 | METHOD AND INSTRUMENT FOR MEASURING THE DENSITY OF FLUID MEDIA - A method and a measuring device measure the density of fluid media with a sensor having a density measuring device. A frequency oscillator with mass balance is used as the density sensor and all components related to the frequency oscillator with mass balance for the oscillation behavior, oscillation excitation and oscillation evaluation, as well as the frequency oscillator with mass balance directly associated with the measuring and sensor electronics, are enclosed in a housing or cartridge. These components are used with the frequency oscillator with mass balance in the cartridge, and/or the frequency oscillator with mass balance together with the cartridge is adjusted or calibrated using measurement standards and adapted as necessary to the specific application. The cartridge with the frequency oscillator with mass balance is releasably or replaceably connected with the measuring device or its base body before the beginning of the measuring operation to investigate the media. | 05-05-2016 |
| 20160131565 | METHOD OF DETERMINING A FILL LEVEL OF AN OSCILLATOR OF AN OSCILLATOR TUBE, AND OSCILLATOR TUBE - A method determines a degree of filling of an oscillator tube of a frequency oscillator with a fluid to be examined, in particular related to the density measurement of fluids with the frequency oscillator. By adjustment or calibration standards for the fluid to be examined, or for fluids possessing various viscosities, the relationship between the damping and/or oscillation amplitude of the frequency oscillator and the degree of filling of the oscillator tube is determined. In the course of determining the degree of filling, a parameter relevant for the damping and/or oscillation amplitude of the frequency oscillator is measured, and the measured value is considered as relevant and functionally related to the degree of filling and can be used for evaluating or determining the degree of filling. | 05-12-2016 |
| 20160161386 | FLUID DENSITY METERS AUTO-START BY INJECTION SEED VIBRATION USING FREQUENCY SCANNING METHOD - A method of initiating a fluid density measurement includes generating a prime resonance of a test fixture by a startup circuit. The method of initiating a fluid density measurement includes closing a feedback loop in response to generating the prime resonance. The method of initiating a fluid density measurement includes maintaining the prime resonance by closing the feedback loop. | 06-09-2016 |
| 20160377587 | INTEGRATED ACTIVE FUEL CHARACTERISTIC SENSOR - An aircraft fuel system comprises an integrated sensor assembly incorporating a housing. The housing receives a circuit board, a temperature sensor, a point level sensor and a fuel density sensor. A first fuel height sensor is positioned outwardly of the housing. | 12-29-2016 |
| 20180024097 | APPARATUS FOR DETERMINING AND/OR MONITORING AT LEAST ONE PROCESS VARIABLE OF A MEDIUM | 01-25-2018 |
