| Entries |
| Document | Title | Date |
|---|
| 20080223147 | Method and Apparatus for the Ultrasonic Measurement of the Flow Rate of Flowable Media - A method for operating a measuring apparatus ( | 09-18-2008 |
| 20080250868 | Ultrasound Flow Sensor with a Modulo-2Pi for a Remaining Part Tracing - The invention relates to a method for determining the running time (t) of an ultrasound flow sensor ( | 10-16-2008 |
| 20080250869 | Remote Monitoring of Fluid Pipelines - Pipeline including a system for monitoring fluid flowing through the pipeline includes a conduit defining an interior and at least one sensor assembly arranged in the interior. Each sensor assembly includes an energy generating system and at least one flow measuring device coupled to the energy generating system to be powered thereby. The flow measuring device provides information about flow of fluid in the conduit. The information may be transmitted to a remote monitoring location via a telematics or communications unit connected to each sensor assembly. | 10-16-2008 |
| 20080250870 | Low Power Ultrasonic Flow Measurement - There is described a method of ultrasonic flow measurement for measuring a flow speed of a fluid in a conduit, the method comprising: providing an ultrasonic flow meter comprising a microprocessor, a clock, and a pair of ultrasonic transducers operable to transmit signals through the fluid and to receive the transmitted signals; switching the ultrasonic flow meter from a passive state to an active state at time intervals measured by the clock, an amount of power used by the ultrasonic flow meter in the passive state being less than an amount of power used by the ultrasonic flow meter in the active state; performing an ultrasonic flow measurement cycle; and switching the ultrasonic flow meter from the active state to the passive state following completion of an ultrasonic flow measurement cycle. There is also described an ultrasonic flow meter for measuring a flow speed of a fluid in a conduit. | 10-16-2008 |
| 20080271543 | Ultrasonic Flow Rate Meter Having a Pressure Sensor - An ultrasonic flow rate meter and a method for measuring the flow rate with the aid of ultrasound are described, having at least two ultrasonic transducers situated offset in a flow channel in the flow direction for transmitting and receiving ultrasound wave packets, so that ultrasound propagation times from one of the ultrasonic transducers to the other, and vice-versa, can be determined in an electronic part, and having a pressure sensor associated with the flow channel for determining the pressure in the flow channel. Measured values for an engine control that is as accurate as possible are determinable by accurately detecting the incoming air in the intake of a motor vehicle internal combustion engine. | 11-06-2008 |
| 20080282808 | Measuring Means for Measuring a Flow Rate of a Medium Independently of the Medium - A measurer for measuring a flow rate of a medium which may be multi-component or heterogeneous, independently of the medium, a signal-generating unit generating a transmit signal on the basis of a reference signal of a signal generator and transmitting same by means of a stimulator via the flowing medium. This signal is received by a sensor and passed on to an evaluating unit which is implemented to determine a signal transfer time based on a plurality of mutually corresponding locations of a waveform of the receive signal and the waveform corresponding to the reference signal and the flow rate of the medium based on the signal transfer time and the certain distance between the stimulator and the sensor. | 11-20-2008 |
| 20080289434 | FLUID FLOW MEASURING INSTRUMENT - A measurement control section comprises a time measuring section for controlling an operation of measuring a travel time of an ultrasonic wave. The measurement control section operations, based on a high rate clock signal supplied from a ceramic oscillation circuit during the time measuring operation. A clock control section stops the high rate clock signal supplied from the ceramic oscillation circuit every time when the time measuring section completes its time measuring operation, and uses a low rate clock signal supplied from a quartz oscillation circuit to count a standby time between the end of measuring the travel time and the start of carrying out the next measuring operation. | 11-27-2008 |
| 20080307895 | ULTRASONIC FLOW SENSOR WITH QUADRATURE DEMODULATION - An ultrasonic flow sensor, in particular for determining the flow velocity of a medium flowing through a pipeline, has at least one ultrasonic converter for transmitting and/or receiving ultrasonic signals, an oscillator, which is connected with the ultrasonic converter, and an evaluation unit, which determines a phase shift of the ultrasonic signal that was received, with respect to a reference signal. The evaluation unit includes a plurality of quadrature demodulators, which operate with different demodulation frequencies and each determine phase information about the ultrasonic signal that was received, and when a vernier unit is provided, which determines—based on the individual pieces of phase information—a phase angle or a quantity proportional thereto. | 12-18-2008 |
| 20090000394 | ULTRASONIC SENSOR WITH RECIPROCAL TRANSMITTING AND RECEIVING CIRCUIT - An ultrasonic sensor has at least two ultrasonic converters for transmitting and receiving ultrasonic signals, connected with a transmitting circuit and a receiving circuit. A switching device is provided, by which the ultrasonic converters are connected in series when in the transmission mode, and they are separated from each other when in the receiving mode. | 01-01-2009 |
| 20090158858 | METHOD FOR QUANTIFYING VARYING PROPAGATION CHARACTERISTICS OF NORMAL INCIDENT ULTRASONIC SIGNALS AS USED IN CORRELATION BASED FLOW MEASUREMENT - According to the present invention, a method is provided for sensing a fluid flow within a pipe having a lengthwise axis to determine a parameter of the fluid flow. The method includes the following steps: a) providing an array of more than two ultrasonic sensors, each sensor having a transmitter and a receiver; b) disposing the transmitter and receiver of each sensor orthogonally relative to the lengthwise axis of the pipe; c) receiving ultrasonic signals using the receivers, which received signals result from initial signals transmitted from the transmitters of the ultrasonic sensors; d) processing the received signals from each sensor by projecting the received signals against a sine function and a cosine function, high pass filtering the projected signals, and using the high pass filtered projections to create an arrival vector within a complex plane, wherein the high pass filtered arrival vector is a rectified frequency doubled signal; and e) determining the parameter of the fluid flow using the arrival vector. | 06-25-2009 |
| 20100005901 | METHOD AND SYSTEM OF COORDINATION OF MEASUREMENT SUBSYSTEMS OF A FLOW METER - Coordination of measurement subsystems of a flow meter. At least some of the illustrative embodiments are flow meters comprising a spool piece that defines a central passage, a first plurality of transducer pairs mechanically coupled to the spool piece, a first control electronics electrically coupled to the first plurality of transducer pairs (the first control electronics configured to selectively activate each transducer pair of the first plurality of transducer pairs), a second plurality of transducer pairs mechanically coupled to the spool piece, a second control electronics different than the first control electronics (the second control electronics electrically coupled to the second plurality of transducer pairs, the second control electronics configured to selectively activate each transducer pair of the second plurality of transducer pairs). The first and second control electronics communicatively coupled and configured to coordinate activation of their respective transducer pairs. | 01-14-2010 |
| 20100005902 | ULTRASONIC FLUID MEASURING DEVICE - An ultrasonic fluid measuring device capable of improving a measuring accuracy is provided. An ultrasonic fluid measuring device | 01-14-2010 |
| 20100024570 | Device for Determining or Monitoring a Medium Volume or Mass Flow Rate in a Conduit - An ultrasonic, flow measuring device having a plurality of measuring channels. At least one ultrasonic sensor is situated in a first region of a pipeline, or measuring tube; at least two ultrasonic sensors are situated in a second region of the pipeline ( | 02-04-2010 |
| 20100064821 | ULTRASONIC FLUID MEASURING DEVICE - An ultrasonic fluid measuring device capable of improving a measuring accuracy is provided. In an ultrasonic fluid measuring device | 03-18-2010 |
| 20100180693 | ULTRASONIC RECEIVER - An ultrasonic receiver according to the present invention includes: a wave propagating portion | 07-22-2010 |
| 20100192702 | MULTILAYER FLOW PATH MEMBER OF ULTRASONIC FLUID MEASUREMENT APPARATUS AND ULTRASONIC FLUID MEASUREMENT APPARATUS - A multilayer flow path member of an ultrasonic fluid measurement apparatus and an ultrasonic fluid measurement apparatus capable of enhancing the measurement accuracy of the mean flow velocity are provided. When a multilayer flow path member | 08-05-2010 |
| 20100218617 | METHOD FOR MEASURING FLOW RATES IN LIQUID MELTS - The invention relates to a method for measuring flow rates in liquid melts in a temperature range above 200 DEG C. using an ultrasonic generator and to an associated ultrasonic waveguide according to the ultrasonic Doppler method. The aim of the invention is to provide good signal incoupling and outcoupling. This is achieved by the preparation of the wettability of the end face of the ultrasonic waveguide before the measuring operation, subsequent direct incoupling of ultrasonic measuring signals into the melt at an angle that is not equal to 90 DEG, achieved by the immersion of the end face of the ultrasonic waveguide into the melt, outcoupling of the ultrasonic signals reflected in the melt via the end face of the ultrasonic waveguide and routing of said signals to an evaluation circuit. To prepare the wettability of the end face, the latter is mechanically and chemically cleaned and subsequently coated with a suitable material. | 09-02-2010 |
| 20100242621 | Method and apparatus for the measurement of the mass fraction of water in oil-water mixtures - An apparatus for measuring the mass fractions of water and oil in a flowing mixture of oil and water through a pipe includes a sensor portion that measures sound velocity and temperature of the flowing oil water mixture at a first time and at a second time. The apparatus includes a temperature changer in thermal communication with the flowing fluid which changes the temperature of the flowing oil water mixture by a measurable amount between the first time and the second time. A method for measuring water mass fraction in a flowing mixture of oil and water through a pipe includes the steps of measuring sound velocity and temperature of the flowing oil water mixture at a first time with a sensor portion. There is the step of changing the temperature of the flowing oil water mixture by a measurable amount with a temperature changer in thermal communication with the flowing fluid. There is the step of measuring sound velocity and temperature of the flowing oil water mixture at a second time with the sensor portion. | 09-30-2010 |
| 20100257940 | ULTRASONIC TRANSDUCER FOR DETERMINING AND/OR MONITORING FLOW OF A MEASURED MEDIUM THROUGH A MEASURING TUBE - An ultrasonic transducer for determining and/or monitoring flow of a measured medium through a measuring tube, which includes at least one piezoelectric element, at least one coupling element and at least one adapting, or matching, layer between the piezoelectric element and coupling element. The adapting, or matching, layer has a thickness smaller than a fourth of an uneven integer multiple of a wavelength of an ultrasonic signal being used. | 10-14-2010 |
| 20110005335 | Turbulence conditioner for transit time ultrasonic flow meters and method - An apparatus for determining fluid flow in a pipe includes an ultrasonic flowmeter which communicates with the interior of the pipe through at least one pair of apertures, where each aperture of the one pair of apertures has an effective diameter. The apparatus includes a turbulence conditioner disposed in the pipe having openings where the pitch between openings is a function of the effective diameter of the aperture. A turbulence conditioner for a pipe has openings and a pitch. The conditioner has walls between the openings whose thickness is a function of the pitch. The conditioner has a length which is a function of the pitch. A method for determining fluid flow in a pipe includes the steps of flowing fluid through a turbulence conditioner disposed in the pipe having openings where the pitch between openings, is made a function of an effective diameter of an aperture of an ultrasonic flowmeter which communicates with the interior of the pipe through the aperture. There is the step of measuring the flow with the meter. A method for producing a turbulence conditioner. | 01-13-2011 |
| 20110016985 | DEVICE AND METHOD FOR MEASURING A FLOW CHARACTERISTIC OF A FLUID IN A CONDUIT - A device for determining a flow characteristic, in particular flow velocity, of a fluid in a conduit, comprises a conduit body ( | 01-27-2011 |
| 20110126636 | METHOD AND DEVICE FOR DETERMINING A FLOW RATE OF A FLUID - Disclosed are a method and a device for determining a flow rate through a pipe, wherein a first measurement device is provided which determines the flow profile of the fluid in a first region by means of a Doppler frequency shift, and a second measurement device is provided which determines the flow profile of the fluid in the pipe in a second region by means of a travel time measurement method. | 06-02-2011 |
| 20110132102 | Measuring System for Determining and/or Monitoring Flow of a Measured Medium Through a Measuring Tube - Measuring system for determining and/or monitoring flow of a measured medium through a measuring tube, including: At least one ultrasonic transducer; and at least one control/evaluation unit, which, on the basis of measurement signals or on the basis of measurement data derived from the measurement signals, ascertains volume- and/or mass-flow of the medium flowing in the measuring tube; wherein the ultrasonic transducer has at least one electromechanical transducer element, which sends and/or receives ultrasonic signals; and at least one coupling layer in the region between electromechanical transducer element and measured medium, which coupling layer conducts the ultrasonic signals, and which ultrasonic transducer is acoustically coupleable with the measuring tube and at least partially fittable on the outer shape of the measuring tube and which electromechanical transducer element is flexible. | 06-09-2011 |
| 20110174083 | METHOD AND MEASURING SYSTEM FOR DETERMINING AND/OR MONITORING THE FLOW OF A MEASURED MEDIUM THROUGH A MEASURING TUBE - Measuring system ( | 07-21-2011 |
| 20110226067 | OSCILLATION CIRCUIT - An oscillation circuit has an oscillator having a resonant frequency, an amplifier connected to the oscillator, an energizing pulse generator for generating a energizing pulse within a certain range including the resonant frequency, a switching unit for switching between connection and disconnection of the energizing pulse generator and the oscillator, and the amplifier, and a motion command unit for sending a command signal to the energizing pulse generator for starting operation, in which the switching unit connects the oscillator and the energizing pulse generator during a cycle, a half cycle, or several cycles of the energizing pulse generated by the energizing pulse generator starting at a time when the motion command unit sends the motion signal. | 09-22-2011 |
| 20120006127 | FLOW METER UNIT WITH WATER-TIGHT CASING - An ultrasound flow meter unit, e.g. a unit forming part of a flow meter for ultrasonic measurement of a fluid flow. The unit comprises two ultra-sound transducers | 01-12-2012 |
| 20120079890 | MEASURING DEVICE AND METHOD FOR MEASURING A MEASURED VARIABLE - Method and measuring device for measuring at least one measured variable. A first sensor transmits a first measurement signal, which includes at least one half-wave of a mechanical wave or an electromagnetic wave, and, at a time t from the first measurement signal, transmits at least a second measurement signal. At least a second sensor receives the measurement signals. The travel time and TOF | 04-05-2012 |
| 20120186362 | Adjustable ultrasonic gas flow measurement device - An adjustable ultrasonic gas flow measurement device includes a gas pipe, a transmitter, a receiver and a micro-processing module. The gas pipe is filled with a gas under test. The transmitter and the receiver are respectively installed in two ends of the gas pipe for transmitting and receiving ultrasonic signals inside the gas pipe. The micro-processing module is electrically connected to the transmitter and the receiver for generating and sending a first ultrasonic signal to the transmitter for transmitting, and comparing the phase shift of a second ultrasonic signal and a third ultrasonic signal to output a phase comparison result, wherein the transmitted first ultrasonic signal passing through the gas pipe was received by the receiver as the second ultrasonic signal, and the third ultrasonic signal is generated by shifting the first ultrasonic signal with a predetermined phase difference. | 07-26-2012 |
| 20120255368 | FLOW RATE MEASURING DEVICE - When a flow rate is equal to or more than a reference flow rate, a reference voltage is changed to a level capable of measuring stably to thereby realize the improvement of measurement accuracy at the time of a large amount of flow rate. A flow rate determination means compares a flow rate calculated by a flow rate calculation means with the reference flow rate. When the calculated flow rate is larger than the reference flow rate, the reference voltage set by a reference voltage setting means is changed, whereby the zero cross point can be detected stably at the portion where the degree of the influence of the change in the amplitude of the received signal is small. Thus, it is possible to provide a flow rate measuring device capable of measuring a flow rate stably with high accuracy even when a fluid flow is disturbed due to a large amount of flow rate. | 10-11-2012 |
| 20120285260 | Ultrasonic flow sensor for detecting a flow of a fluid medium - An ultrasonic flow sensor for detecting a flow of a fluid medium in a flow tube includes at least one first ultrasonic transducer, at least one second ultrasonic transducer, and at least one waveguide configured to conduct ultrasonic waves between the at least one first ultrasonic transducer and the at least one second ultrasonic transducer by reflection on walls of the waveguide, and to enable the fluid medium to flow through. The ultrasonic waves are able to propagate between the first ultrasonic transducer and the second ultrasonic transducer on at least two ultrasonic paths. Sound energies of the ultrasonic waves transmitted on the at least two different ultrasonic paths differ from one another by no more than a factor of 100. | 11-15-2012 |
| 20130014592 | ultrasonic transducer for use in a fluid mediumAANM Mueller; RolandAACI SteinheimAACO DEAAGP Mueller; Roland Steinheim DEAANM Hueftle; GerhardAACI AspachAACO DEAAGP Hueftle; Gerhard Aspach DEAANM Horstbrink; MichaelAACI Stuttgart-FeuerbachAACO DEAAGP Horstbrink; Michael Stuttgart-Feuerbach DEAANM Lang; TobiasAACI StuttgartAACO DEAAGP Lang; Tobias Stuttgart DEAANM Radwan; SamiAACI StuttgartAACO DEAAGP Radwan; Sami Stuttgart DEAANM Kuenzl; BerndAACI SchwieberdingenAACO DEAAGP Kuenzl; Bernd Schwieberdingen DEAANM Wanja; RolandAACI MarkgroeningAACO DEAAGP Wanja; Roland Markgroening DE - An ultrasonic transducer for use in a fluid medium includes at least one housing, e.g., a sleeve, which has at least one interior space, and at least one transducer core having at least one electroacoustic transducer element is accommodated in the interior space. The housing has a housing wall at least partially enclosing the transducer core using at least one hollow space. | 01-17-2013 |
| 20130061688 | Fluid Flow Monitor - There are disclosed methods and apparatus for monitoring fluid flow along a conduit such as a well bore or a pipeline. A sensor optical fibre is disposed along the conduit, and an optical interrogator is used to launch probe light pulses into the fibre and to determine optical properties of probe light backscattered within the fibre, the properties being indicative of vibration as a function along the fibre. An analyser is used to detect one or more vibration features moving along the conduit and to determine a measure of fluid flow based on the detected movement. | 03-14-2013 |
| 20130098168 | CONSTRUCTION FOR MOUNTING ULTRASONIC TRANSDUCER AND ULTRASONIC FLOW METER USING SAME - Ultrasonic transducers are attached in a direction of compressing O-ring provided in a housing with a flow passage. Biasing means makes contact with and presses these ultrasonic transducers and at multiple points. A screw is provided for locking this pressing means to the housing. This enables the use of O-ring as a sealing means. Accordingly, an in-expensive ultrasonic flowmeter that facilitates signal processing by reducing propagation of vibration of the ultrasonic transducer to the housing can be achieved. | 04-25-2013 |
| 20130167655 | ULTRASONIC FLOW RATE MEASUREMENT DEVICE - Ultrasonic flow rate measurement device includes measurement flow path in which a fluid to be measured flows, and a pair of ultrasonic vibrators that are disposed in directions such that a propagation path of an ultrasonic wave forms a V-shape relative to measurement flow path. Moreover, the device includes measurement circuit which measures a flow rate of the fluid to be measured by measuring a propagation time of the ultrasonic wave between the pair of ultrasonic vibrators, and inlet-side rectification part which is disposed, in the inlet side of measurement flow path, to stabilize the flow of the fluid to be measured. Furthermore, the device includes outlet-side coupling part which is disposed in the outlet side of measurement flow path, and signal lead-out part which outputs a flow rate value measured with measurement circuit. | 07-04-2013 |
| 20130174669 | METHOD AND APPARTUS FOR DETERMINING FLOW VELOCITY - A multimode flow meter can use both the time-of-transit of upstream and downstream ultrasonic signals and time for transmission of downstream-only signals to determine a flow velocity of a medium flowing through a conduit. Based on factors, such as previously computed flow velocity and signal-to-noise ratio of the upstream signal, a mode of operation may be switched and only the time for transmission of the downstream signals may be used to determine flow velocity. The multimode flow meter can computer cross-flow to reduce its effect on the determination of flow velocity. | 07-11-2013 |
| 20130247685 | MEASUREMENT ARRANGEMENT AND METHOD - A measurement arrangement comprises a clock generator ( | 09-26-2013 |
| 20130269447 | FLOW METER DEVICE - In a flow meter device of the present invention, a time measuring section of the flow meter device includes a first counter which starts counting at a starting point of measurement of propagation time; and a second counter which starts counting at an end point of the measurement of the propagation time, and performs counting at a higher speed than the first counter. A propagation time TO is finally obtained by subtracting time Δt which is measured by the second counter and passes from the end point until the first counter counts up, from time T which is measured by the first counter and passes from a starting point until the first counter counts up after the end point. A flow calculating section calculates a flow with high accuracy using the propagation time TO. Thus, lower electric power consumption can be achieved, and accuracy of measurement of flow can be improved. | 10-17-2013 |
| 20130269448 | Flow Measuring Device - Flow measuring device for ascertaining flow of a measured medium flowing through a measuring tube, which flow measuring device has a first housing for protruding into the measured medium, wherein the first housing has a first surface intended to face the measured medium, wherein the flow measuring device includes a second surface for bounding the measured medium, and wherein each separation between the first surface for bounding the first housing from measured medium, the second surface for bounding the measured medium and the first surface of the first housing amounts to at least 1 mm. | 10-17-2013 |
| 20130283929 | SOLUTION PROCESSING APPARATUS, SOLUTION PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM - According to an embodiment of the present disclosure, an apparatus is configured to perform a solution process by supplying a processing solution from a processing solution supply source to the substrate held on a substrate holder via a flow path member and a nozzle at a flow rate equal to or less than 1 mL/sec. The apparatus includes a solution transfer unit configured to transfer the processing solution to the nozzle, and mounted to the flow path member, and an ultrasonic flowmeter mounted to the flow path member at a downstream side from the solution transfer unit. In this embodiment, a lower limit of a flow rate range which is measured by the ultrasonic flowmeter is equal to or less than 1 mL/sec. | 10-31-2013 |
| 20130283930 | Ultrasonic, Flow Measuring Device - An ultrasonic, flow measuring device, comprising an ultrasonic transducer in a bore of a measuring tube, which ultrasonic transducer has an ultrasound window, wherein a guide vane is inserted into the bore of the measuring tube in front of the ultrasound window and perpendicular to the ultrasound window of the ultrasonic transducer. | 10-31-2013 |
| 20130327156 | ULTRASONIC FLOW SENSOR AND METHOD - A flow sensor includes a conduit and an ultrasonic transceiver. The conduit has an inner surface and an outer surface. The inner surface defines a flow passage through which a fluid may flow in a flow direction. The ultrasonic transceiver is coupled to, and surrounds a portion of, the outer surface of the conduit. The ultrasonic transceiver is configured to transmit ultrasonic waves into the fluid that propagate in a direction that is parallel to the flow direction, receive ultrasonic waves, and supply sensor signals representative of the received ultrasonic waves. | 12-12-2013 |
| 20140013859 | Chordal Gas Flowmeter with Transducers Installed Outside the Pressure Boundary, Housing and Method - A flowmeter for detecting gas flow rates in a pipe includes a container configured to be attached to the pipe having a channel through which the gas flows, and a plurality of recesses that extend through the container and a plurality of housings. The flowmeter includes a plurality of transducers, with one transducer of the plurality of transducers disposed in each recess. The transducers transmit ultrasonic signals into and receive ultrasonic signals from the channel. The flowmeter includes a controller in electrical communication with the plurality of transducers which determines the gas flow rate through the channel by measuring transit times of signals transmitted by and received by the transducers. A housing for an ultrasonic transducer for a flowmeter which is inserted into a recess of a container that acoustically isolates the housing from the container. A method for detecting gas flow rates in a pipe. | 01-16-2014 |
| 20140020478 | ULTRASONIC WEDGE AND METHOD FOR DETERMINING THE SPEED OF SOUND IN SAME - A wedge and a method for determining the speed of sound in the wedge is disclosed. The wedge includes a reflecting wall and is configured such that a portion of the main ultrasonic signal transmitted by an ultrasonic transducer is reflected and travels through the wedge back to the ultrasonic transducer. The speed of sound can be determined based on the distance traveled by, and the time of flight of, the main ultrasonic signal and reflected ultrasonic signal in the wedge. | 01-23-2014 |
| 20140033827 | ULTRASONIC TRANSDUCER AND ULTRASONIC FLOW-METER - An ultrasonic wave transmitting and receiving unit includes: a piezoelectric member supporting plate; an acoustic matching member fixed to one surface of the piezoelectric member supporting plate; a piezoelectric member fixed to the other surface. Moreover, the ultrasonic wave transmitting and receiving unit includes: an insulating vibration suppressing member integrally formed in such a manner as to cover the piezoelectric member and the piezoelectric member supporting plate, wherein the insulating vibration suppressing member has a hole reaching the piezoelectric member supporting plate. | 02-06-2014 |
| 20140053659 | ULTRASONIC FLOWMETER HAVING PRESSURE BALANCING SYSTEM FOR HIGH PRESSURE OPERATION - A system is provided with an ultrasonic flow meter. The ultrasonic flow meter includes a first ultrasonic transducer disposed about a fluid flow path, and a pressure balancing system configured to pressure balance the first ultrasonic transducer relative to a fluid flow along the fluid flow path. | 02-27-2014 |
| 20140083202 | Ultrasonic, Flow Measuring Device - Please replace the abstract that appears on page 32 of the specification with the following revised abstract which is submitted on a separate sheet. | 03-27-2014 |
| 20140102213 | ULTRASONIC FLOWMETER - The present invention is one that suppresses crosstalk caused by switching means adapted to switch transmission/reception between ultrasonic transceivers that are paired, and provided with: a first ultrasonic transceiver and a second ultrasonic transceiver; a transmission circuit that generates a transmission signal for vibrating the first ultrasonic transceiver or the second ultrasonic transceiver; a reception circuit that senses a reception signal from the first ultrasonic transceiver or the second ultrasonic transceiver; first transmission amplifying means adapted to amplify the transmission signal to the first ultrasonic transceiver; first reception amplifying means adapted to amplify a reception signal from the first ultrasonic transceiver; second transmission amplifying means adapted to amplify the transmission signal to the second ultrasonic transceiver; and second reception amplifying means adapted to amplify a reception signal from the second ultrasonic transceiver. | 04-17-2014 |
| 20140109687 | QUANTITATIVE ANALYSIS OF FLOW PROFILE CHARACTERISTICS FOR ULTRASONIC METERING SYSTEMS - An ultrasonic flow metering system includes a condition monitor. For each chordal path of a plurality of chordal paths of an ultrasonic flow meter the condition monitor is configured to compute: 1) a reference chordal velocity ratio; 2) a predicted chordal velocity based on the reference chordal velocity ratio for the chordal path and measured flow velocities for all other chordal paths of the plurality of chordal paths; 3) a first estimated mean flow velocity for the ultrasonic meter, the first estimated mean flow velocity based on the predicted chordal velocity for the chordal path and the measured flow velocities for all other chordal paths of the plurality of chordal paths; and 4) for each other chordal path of the plurality of chordal paths, a predicted chordal velocity ratio based on the measured flow velocity for the other chordal path and the first estimated mean flow velocity. | 04-24-2014 |
| 20140109688 | ULTRASONIC FLOWMETER AND FLUID CONTROLLER HAVING THE SAME - An ultrasonic flowmeter includes a measurement pipe through which a fluid flows, and two ultrasonic transceivers mounted on two transmitting bodies, respectively. The transmitting bodies are provided on outer side portions of the measurement pipe so as to be spaced from each other in an axis direction, and the measurement pipe and the two transmitting bodies are formed integrally with each other. The measurement pipe has a length, an inner diameter uniform in a length direction, and an arithmetic mean roughness Ra of an inner peripheral surface. The inner diameter is equal to or less than 5 mm, and the length of the measurement pipe is equal to or more than 30 mm. The arithmetic mean roughness Ra satisfies a relation of 0 μm| 04-24-2014 | |
| 20140130607 | MANUFACTURING METHOD OF ACOUSTIC MATCHING MEMBER, ACOUSTIC MATCHING MEMBER, ULTRASONIC TRANSMITTER/ RECEIVER UNIT INCORPORATING ACOUSTIC MATCHING MEMBER, AND ULTRASONIC FLOW METER DEVICE - Provided are an acoustic matching member with a fixed density, an ultrasonic transmitter/receiver unit with a high sensitivity, and an ultrasonic flow meter device which attains stable and high-accurate flow measurement. An acoustic matching member comprises hollow elements and a binding agent. The acoustic matching member is created by removing hollow elements having higher densities, hollow elements having cracks, etc., from hollow elements before sorting-out. Since the hollow elements having higher densities, the hollow elements having cracks, etc., are removed from hollow elements before sorting-out, it becomes possible to provide an acoustic matching member having fixed characteristics without being affected by a manufacturing lot and a transportation process of the hollow elements. An ultrasonic transmitter/receiver unit created using the acoustic matching member has fixed characteristics and is able to perform high-accurate flow measurement. | 05-15-2014 |
| 20140196547 | Deployable Ultrasonic Flow Meter That is Inserted Through a Gate Valve Slot, Method and Apparatus - A frame that is inserted into a gate valve slot which accesses a channel through which fluid flows so an ultrasonic flowmeter can measure the fluid flow through the channel. The frame includes a first arm axle that fits into the slot. The frame includes a first ultrasonic transducer in communication with the flowmeter that is attached to the first arm axle. The frame includes a second ultrasonic transducer in communication with the flowmeter. The second transducer is aligned with and upstream from the first transducer relative to the fluid flow and between which ultrasonic signals are emitted and received through the fluid flow and which the flowmeter uses to determine the fluid flow through the channel. The apparatus for measuring fluid flow in a channel is accessed through a gate slot. A method for measuring fluid flow in a channel that is accessed through a gate slot. | 07-17-2014 |
| 20140202258 | ULTRASONIC MEASUREMENT DEVICE AND A METHOD FOR OPERATING THE SAME - A method for operating an ultrasonic device comprising a first and second ultrasonic transducers, includes driving the first and second transducers at a driving frequency such that the first and second transducers generate a first and a second signals, respectively. The method also includes sensing the second signal at the first transducer to produce a first measurement signal and sensing the first signal at the second transducer to produce a second measurement signal. The method further includes identifying a first set of data-points in the first measurement signal and a second set of data-points in the second measurement signal. The method also includes generating a frequency data-series using the first set of data-points and a corresponding data-point in the second set of data-points. The method also includes performing statistical operations based on the frequency data-series and configuring an operating frequency for driving the first and second transducers using the operations. | 07-24-2014 |
| 20140216166 | METHOD FOR DETERMINING THE FLOW RATE OF FLUIDS USING THE ULTRASONIC TRANSIT TIME METHOD - In a method for determining the flow rate of fluids using the ultrasonic transit time method, the flow speed and therefrom the flow rate of the fluid is determined from the transit time of ultrasound signals through the measurement section. | 08-07-2014 |
| 20140318268 | ULTRASONIC FLOW METER WITH DIGITALLY UNDER-SAMPLED FLOW MEASUREMENTS - The invention relates to a method of operating an ultrasonic flow meter by digitally sampling received signals. Acoustic wave packets are transmitted through a measuring distance in opposite directions, and the received signals are digitized at a sampling frequency being below the Nyquist-limit of two times the signal frequency of the wave packet to generate digitized under-sampled signals | 10-30-2014 |
| 20140338467 | MULTI-CHANNEL FLOW SENSING - A multi-channel flow sensing system typically includes first and second flow-sensing transducers arranged in each channel. A data acquisition system is coupled to the first and second transducers of each of the channels. The data acquisition system is arranged to transmit and/or receive a sensing signal from at least one of the first and second transducers of each of the channels. The received sensing signals are sequentially converted and accumulated as data for billing in accordance with the measured flow within each channel. Using common components within the data acquisition system for measuring the various channels reduces costs and increases affordability in cost-sensitive areas. | 11-20-2014 |
| 20140352453 | FLOWMETER - Flowmeter for a fluid, comprising a duct unit which forms the ducts of the flowmeter, the duct unit having a plurality of ducts in a measurement region, and at least one measuring device being arranged in one of these ducts, the duct unit comprising a dividing device with one or more dividing stages for apportioning the fluid flowing into the flowmeter to the ducts, the or each dividing stage comprising at least one damming element which apportions fluid flowing through an inflow duct to at least two subducts, characterized in that the dividing device and/or an accelerating device, which is arranged in at least one of the ducts between the dividing device and measurement region, are/is designed to accelerate the fluid in such a way that the fluid has a first flow velocity upstream of the dividing device and in the measurement region a second flow velocity which is at least 1.5 times as high, in particular at least twice as high. | 12-04-2014 |
| 20140366642 | ULTRASONIC FLOWMETER - An ultrasonic flowmeter includes a plurality of ultrasonic wave elements attached to an outer wall of a pipeline through which a measurement target fluid flows, and configured to transmit and receive an ultrasonic signal, wherein at least one of the ultrasonic wave elements is an ultrasonic wave transmission element and is attached to the outer wall of the pipeline so that an ultrasonic wave transmission surface thereof is in parallel to a pipe axis direction of the pipeline, and another at least one of the ultrasonic wave elements is an ultrasonic wave reception element and is attached to the outer wall of the pipeline so that an ultrasonic wave reception surface thereof is in parallel to the pipe axis direction of the pipeline. | 12-18-2014 |
| 20150013470 | METHOD AND APPARATUS FOR MEASURING A PULSATINGLY FLUCTUATING FLOW RATE | 01-15-2015 |
| 20150013471 | FLUID FLOW RATE DETECTION DEVICE - To provide a fluid flow rate detection device which can be evaluated as adequate from a medical point of view. The velocity of a fluid flowing through a luminal organ in vivo is to be obtained. V | 01-15-2015 |
| 20150107370 | METHOD FOR MONITORING THE OPERATING STATE OF AN ULTRASONIC TRANSDUCER IN AN ULTRASONIC, FLOW MEASURING DEVICE - A method for monitoring the operating state of a first ultrasonic transducer in an ultrasonic, flow measuring device having at least one measuring tube and at least two ultrasonic transducers, including steps as follows: a) providing a first value or a plurality of first values, which relate to the geometric arrangement of the first ultrasonic transducer in the measuring tube and/or to the geometric arrangement of the first ultrasonic transducer relative to a second ultrasonic transducer; b) ascertaining a second value or a plurality of second values for a flow velocity of a medium located in the measuring tube c) providing a third value and/or a plurality of third values for temperature and/or pressure of the medium located in the measuring tube; d) simulating a desired value of a signal strength taking into consideration the first, second and/or third values; and e) comparing the simulated desired value of a signal strength with an ascertained real value of the signal strength. | 04-23-2015 |
| 20150300853 | SOLUTION PROCESSING APPARATUS, SOLUTION PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM - According to an embodiment of the present disclosure, an apparatus is configured to perform a solution process by supplying a processing solution from a processing solution supply source to the substrate held on a substrate holder via a flow path member and a nozzle at a flow rate equal to or less than 1 mL/sec. The apparatus includes a solution transfer unit configured to transfer the processing solution to the nozzle, and mounted to the flow path member, and an ultrasonic flowmeter mounted to the flow path member at a downstream side from the solution transfer unit. In this embodiment, a lower limit of a flow rate range which is measured by the ultrasonic flowmeter is equal to or less than 1 mL/sec. | 10-22-2015 |
| 20150300854 | FLOW METER UNIT WITH WATER-TIGHT CASING - An ultrasound flow meter unit, e.g., a unit forming part of a flow meter for ultrasonic measurement of a fluid flow. The unit comprises two ultrasound transducers | 10-22-2015 |
| 20150355004 | ULTRASONIC FLOWMETER AND ULTRASONIC FLOWMETER ATTACHING METHOD - In a method for attaching an ultrasonic flowmeter, the ultrasonic flowmeter includes: a first and second ultrasound transceiving portions for sending and receiving ultrasound, disposed on outer peripheries of upstream and downstream sides of a pipe, respectively, which has a fluid flowing therein; a flow rate calculating portion for calculating a flow rate of the fluid based on the time periods until the receptions, by the second and first ultrasound transceiving portions, of ultrasound transmitted from the first and second ultrasound transceiving portions, respectively; and an ultrasound absorbing body for absorbing a piping-propagated wave of the ultrasound, attached to an outer periphery of the pipe. The first and second ultrasound transceiving portions are pressed against the pipe, with the ultrasound absorbing body interposed therebetween, through the application of a pressing force from the outside, with the ultrasound absorbing body interposed between the first and second ultrasound transceiving portions and the pipe. | 12-10-2015 |
| 20150377668 | FLOW METER UNIT WITH WATER-TIGHT CASING - An ultrasound flow meter unit, e.g., a unit forming part of a flow meter for ultrasonic measurement of a fluid flow. The unit comprises two ultrasound transducers | 12-31-2015 |
| 20160003655 | FLOW RATE MEASUREMENT IN A VOLUME - A system for measuring flow rate within a volume includes one or more transmission devices that transmit one or more signals through fluid contained within the volume. The volume may be bounded, at least in part, by an outer structure and by an object at least partially contained within the outer structure. A transmission device located at a first location of the outer structure transmits a first signal to a second location of the outer structure. A second signal is transmitted through the fluid from the second location to a third location of the outer structure. The flow rate of the fluid within the volume may be determined based, at least in part, on the time of flight of both the first signal and the second signal. | 01-07-2016 |
| 20160011027 | Smooth Bore, Chordal Transit-Time Ultrasonic Meter and Method | 01-14-2016 |
| 20160025537 | FLUSH MOUNTED ULTRASONIC TRANSDUCER ARRAYS FOR FLOW MEASUREMENT - A flow meter system includes a first ultrasonic transducer array to be flush-mounted to a pipe. The system also includes a second ultrasonic transducer array to be flush-mounted to the pipe. The system further includes a controller coupled to the first and second ultrasonic transducer arrays and configured to cause bidirectional beam steering between the first and second ultrasonic transducer arrays. | 01-28-2016 |
| 20160033312 | ULTRASONIC FLOW MEASUREMENT SYSTEM - The present invention relates to flow measurement, and more particularly, to a system for measuring a flow rate by three-dimensionally crossing a plurality of sidings each other within a conduit. An ultrasonic flow measurement system according to the present invention determines a flow central part of fluid by three-dimensionally crossing the plurality of sidings each other within the conduit in three dimensions and calculates a flow rate flowing in the conduit, meeting the flow central part, thereby more accurately measuring the flow rate than the existing method. | 02-04-2016 |
| 20160103005 | Ultrasonic Transducer and Ultrasonic Flow Meter - An ultrasonic transducer, comprising a coupling element which has a first recess, the first recess being provided for the arrangement of a piezoelectric element which feeds an ultrasound signal into the coupling element, and there being disposed between the piezoelectric element and the coupling element an intermediate layer which comprises a metal disc, the metal disc comprising retaining elements each with a first segment lying on the same plane as the metal disc and projecting radially from the perimeter of the metal disc and each having a second segment which adjoins the first segment, projects from the plane of the metal plate and is connected to the first segment. | 04-14-2016 |
| 20160202098 | Acoustic Flow Measurement Device Including a Plurality of Chordal Planes Each Having a Plurality of Axial Velocity Measurements Using Transducer Pairs | 07-14-2016 |
| 20160252377 | Chordal Gas Flowmeter with Transducers Installed Outside the Pressure Boundary, Housing and Method | 09-01-2016 |
| 20160377468 | FLOW-RATE MEASUREMENT DEVICE - A flow-rate measurement device which measures a flow rate of a fluid flowing through a fluid flow channel unit includes a tubular measurement flow channel unit that is stored in the fluid flow channel unit and has an inside in communication with the fluid flow channel unit. The flow-rate measurement device also includes a pair of sealing materials that blocks a flow of a fluid and is provided to encircle outer peripheries of the measurement flow channel unit at a first end and a second end; and a measurement unit including a substrate, on which a measurement circuit is mounted, and a pair of ultrasonic transducers. Further, the pair of ultrasonic transducers is electrically and fixedly connected to the substrate in the measurement unit, and the measurement unit is disposed between the pair of sealing materials on the measurement flow channel unit. | 12-29-2016 |
| 20190145806 | SENSOR PACKAGE WITH INGRESS PROTECTION | 05-16-2019 |
