Class / Patent application number | Description | Number of patent applications / Date published |
073610490 | By vibration | 10 |
20080245135 | MICROFLUIDIC ENCAPSULATED NEMS RESONATORS - A device includes a microfluidic channel and a nanoelectromechanical mass detector encapsulated within the microfluidic channel. Multiple microfluidic channels may be included with multiple nano electromechanical mass detectors encapsulated within each microfluidic channel. A method of detecting masses includes delivering a sample via the microfluidic channel to the nano electromechanical mass detectors and creating a pressure within the microfluidic channel that significantly reduces viscous damping effects on the mass detector. The detector may be actuated and response measured. | 10-09-2008 |
20090031789 | LIQUID MEASURING DEVICE AND AUTOMATIC ANALYZER - A liquid measuring device and an automatic analyzer which employs a resonance phenomenon of sound waves to detect an amount of a liquid reserved in a vessel with an opening are provided. The liquid measuring device includes a sound source that emits sound waves toward the opening, a control device that controls a frequency of the sound waves emitted by the sound source, a wave receiver that measures a resonance generated as the sound waves emitted by the sound source causes an air column in the vessel to resonate, a detector that detects a resonance frequency of the resonance measured by the wave receiver, and a liquid-amount determination unit that determines, based on the detected resonance frequency, an amount of the liquid reserved in the vessel. | 02-05-2009 |
20090113997 | SENSOR FOR DETECTING SUBSTANCE IN LIQUID - A sensor for detecting a substance in liquid includes a sensing oscillation circuit and a reference oscillation circuit. The sensing oscillation circuit includes a sensing SAW element in which a reaction film arranged so as to cover at least one IDT and to react with a substance in liquid is disposed and a first amplifier circuit. The reference oscillation circuit includes a reference SAW element and a second amplifier circuit. The reference SAW element includes at least one IDT and no reaction film. The oscillation frequency of the sensing oscillation circuit and the oscillation frequency of the reference oscillation circuit are separated by at least about 200×k | 05-07-2009 |
20100116035 | Sensor - A sensor element carrier for use in a mass-sensitive chemical sensor instrument comprises a base component and a lid component, the base component being adapted to receive, in use, a sensor, the signal generated by which depends on the mass of material adsorbed at a sensing surface thereof, the base component or the lid component having formed therein, in a recessed area, at least one channel for the ingress of sample fluid, the recessed area forming, in use and in conjunction with the sensing surface of the sensor, a sample chamber, the sensor being held, in use, between the base component and the lid component and the approach of the base component and lid component being limited on assembly of the sensor element by means of substantially rigid portions of each which come into abutment, thereby limiting the minimum height of the sample chamber for a given set of sensor, base and lid components. | 05-13-2010 |
20110232372 | SAMPLE ANALYZER AND REAGENT INFORMATION OBTAINING METHOD - A sample analyzer and a method for obtaining reagent information are disclosed, wherein the sample analyzer analyzes a sample by using a reagent contained in a reagent container, comprising a first reagent container holder configured to hold a first reagent container containing a first reagent, a first electronic tag, on which a reagent information regarding the first reagent is recorded, attached to the first reagent container; a second reagent container holder configured to hold a second reagent container containing a second reagent, a second electronic tag, on which a reagent information regarding the second reagent is recorded, attached to the second reagent container; an antenna that is arranged between the first reagent container holder and the second reagent container holder, and is configured to receive a radio wave from each of the first and second electronic tags; and a reagent information obtainer unit configured to obtain the reagent information recorded on the first electronic tag based on a radio wave received from the first electronic tag, and to obtain the reagent information recorded on the second electronic tag based on a radio wave received from the second electronic tag. | 09-29-2011 |
20120137755 | METHOD FOR MEASUREMENT OF PROPERTIES OF ANALYTE - A measurement method that includes irradiating a void-arranged structure on which an analyte has been held with an electromagnetic wave, detecting an electromagnetic wave scattered on the void-arranged structure, and determining a property of the analyte on the basis of at least one parameter, the parameter including the amount of change in the ratio of the detected electromagnetic wave to the irradiated electromagnetic wave at a specific frequency between the presence and the absence of the analyte. | 06-07-2012 |
20120152003 | METHOD AND DEVICE FOR NANOGRAVIMETRY IN FLUID MEDIA USING PIEZOELECTRIC RESONATORS - The invention relates to a method, to a device for electronic characterisation, and to a measurement cell and support for monitoring a chemical or physical process with results that can be assessed in terms of the weight variation of a coating deposited on a piezoelectric sensor, exposed to a fluid medium with stable physical properties. The invention uses the deduction of an analytic expression establishing a simple connection between the phase variation of a fixed-frequency signal, which queries the piezoelectric resonator, and the variation in the bulk density of the coating. The invention is suitable for implementations that use piezoelectric resonators for characterising biochemical and electrochemical processes, such as, inter alia: piezoelectric biosensors and immunosensors, process and material characterisation by AC electrogravimetry, detection of dissolved chemical or biological substances. | 06-21-2012 |
20130042672 | SENSING DEVICE, SENSING SYSTEM, AND SENSING METHOD - A sensing device is to be connected to a piezoelectric resonator for sensing a target substance in a sample fluid based on oscillation frequency of the piezoelectric resonator. The sensing device includes an oscillator circuit, a voltage supply unit, an information obtaining unit, and a voltage adjusting unit. The oscillator circuit is commonalized among a plurality kinds of piezoelectric resonators. The voltage supply unit is configured to supply a DC drive voltage to the oscillator circuit. The information obtaining unit is configured to obtain type information of a piezoelectric resonator which is connected to the oscillator circuit. The voltage adjusting unit is configured to adjust the DC drive voltage to a voltage corresponding to the connected piezoelectric resonator based on the type information obtained by the information obtaining unit. | 02-21-2013 |
20130192351 | METHOD AND APPARATUS FOR DETERMINING GVF (GAS VOLUME FRACTION) FOR AERATED FLUIDS AND LIQUIDS IN FLOTATION TANKS, COLUMNS, DRUMS, TUBES, VATS - The invention provides a signal processor that receives a signal containing information about an acoustic signal that is generated by at least one acoustic transmitter, that travels through an aerated fluid in a container, and that is received by at least one acoustic receiver arranged in relation to the container, including inside the container; and determines the gas volume fraction of the aerated fluid based at least partly on the speed of sound measurement of the acoustic signal that travels through the aerated fluid in the container. The signal processor also sends an output signal containing information about the gas volume fraction of the aerated fluid. The signal processor may be configured together with at least one acoustic transmitter, the at least one acoustic receiver, or both. | 08-01-2013 |
20130283892 | CAVITY RESONATOR - Cavity resonator comprising: a cavity having a fluid entrance and a fluid exit forming a fluid flow path through the cavity. A shorting plate within the cavity arranged within the fluid flow path. The cavity resonator may be used in a system for detecting properties of a fluid, where the system also comprises a fluid supply, a high frequency supply, and a detector for detecting one or more resonant frequencies of the cavity resonator. | 10-31-2013 |