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7615140 |
Potentiometric sensor with status monitoring
A potentiometric sensor for measuring a potentiometric variable of a medium comprises an ISFET whose gate region exhibits an ion-sensitive surface which can be exposed to the medium and which...
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7615139 |
Electrochemical sensor
An electrochemical sensor with at least one measuring electrode ( 3 ), at least one auxiliary electrode ( 7 ) and at least one reference electrode ( 5 ), wherein a protective electrode ( 6 ), which...
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7608176 |
Gas concentration detecting apparatus
The present invention relates a gas concentration detecting apparatus capable of appropriately making a decision on activation of each of a pump cell, a monitor cell and a sensor cell of its gas...
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7604723 |
Measuring device with penetrating electrode
The invention relates to a measuring device having a penetrating electrode. Said elongated electrode of the measuring device is movably mounted in axial direction thereof. In case of a load or a...
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7599815 |
Building management performance indexing and control
A method for measuring compliance with building air quality attribute set points. The method includes the steps of sensing a first attribute of environmental air quality, setting a range of...
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7597789 |
Oxidation-reduction potentiometer
An oxidation-reduction potentiometer immerses a working electrode and a reference electrode in a reference liquid, measures an interelectrode voltage between the above electrodes when an impedance...
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7582196 |
Laminated membranes for diffusion limited gas sensors resistant to pressure variations
A micro fuel cell sensor having laminated gas permeable membrane. The sensor comprises a housing, first and second gas diffusing electrodes spaced from one another, a fuel-cell spacer having an...
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7579275 |
Electric plating method, electric plating apparatus, program for plating, recording medium, and manufacturing method and manufacturing apparatus for semiconductor device
In electric plating of supplying a current between an anode electrode and a cathode electrode as a plated body immersed in a plating solution thereby forming a plated film comprising a conductor on...
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7578914 |
Gas concentration measuring apparatus designed to compensate for output error
A gas concentration measuring apparatus for use in air-fuel ratio control of motor vehicle engines is provided which is designed to determine the concentrations of oxygen at different resolutions...
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7537684 |
Sample analyzing method and sample analyzing device
This invention relates to a technique for analyzing a sample. A sample analyzer ( 1 ) provided by the invention includes: a voltage applier ( 12 ) for applying a voltage to a reaction field which...
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7525298 |
Implantable sensor electrodes and electronic circuitry
An electronic circuit for sensing an output of a sensor having at least one electrode pair and circuitry for obtaining and processing the sensor output. The electrode pair may be laid out such that...
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7504020 |
Determination method for automatically identifying analyte liquid and standard solution for biosensor
According to the standard solution and the determination method of the present invention, in a case where a voltage is applied by a drive voltage of a measurement apparatus to an electrode portion...
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7481913 |
High-resolution gas concentration measuring apparatus
A gas concentration measuring apparatus for use in air-fuel ratio control of motor vehicle engines is provided which includes a laminated sensor element and a sensor circuit. The sensor circuit...
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7473340 |
Circuit configuration for operating a linear exhaust-gas probe
A linear exhaust-gas probe has a measuring cell for measuring a gas concentration in a measuring chamber by determining a measuring-cell voltage, and a pump cell for pumping gas by way of a pump...
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7455761 |
Nitrogen oxide sensor with attenuated oxygen dependence of the NOx signal
In a method and with a circuit for operating a nitrogen oxide sensor for determining the nitrogen oxide (NOx) concentration in a gas mixture, in particular in post-treatment of an automotive...
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7449092 |
Dual mode oxygen sensor
An oxygen sensor for measuring exhaust gases of an internal combustion engine is described. The sensor provides an output that has a high gain near the stoichiometric air-fuel ratio, and a lower...
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7445698 |
Gas concentration detecting apparatus
In a gas concentration detecting apparatus, a voltage is applied to electrodes of a sensor element. A change is caused in either the applied voltage or an element current. An amount of a change in...
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7427346 |
Electrochemical drive circuitry and method
An electrochemical drive circuitry and method, such as may be employed in electroplating bath chemical monitoring. A microcontroller can be utilized to selectively apply galvanostatic or...
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7416650 |
Gas concentration measuring apparatus
In a gas concentration measuring apparatus, a measurement substrate is provided. A conductive pattern portion is formed in the measurement substrate. The conductive pattern portion includes a...
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7393441 |
Controller for gas concentration sensor
An oxygen sensor is employed for determining whether the exhaust air-fuel ratio is rich or lean. A voltage is applied to the oxygen sensor at device impedance calculation intervals to calculate...
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7351323 |
Quantitative analyzing method and quantitative analyzer using sensor
A quantitative analyzing method is provided for electrochemically measuring the concentration of a substance in a sample liquid using a sensor including a reagent layer ( 30 ) which contains a...
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7323141 |
Button layout for a testing instrument
A sensor dispensing instrument adapted to handle a sensor pack containing a plurality of sensors and to perform a test using one of the sensors. The sensor dispensing instrument includes an outer...
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7321287 |
Gas sensor
According to one embodiment, the gas sensor includes a porous plate-like sintered body comprising trisilicon tetranitride needle crystals; two first catalyst metal thin films and one second...
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7312087 |
Devices and methods for biochip multiplexing
The invention is directed to devices and methods that allow for simultaneous multiple biochip analysis. The method of analyzing the plurality of biochips includes inserting a first biochp into a...
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7297242 |
Self-adjusting electrochemical sensor
A gas detector with a compensated electrochemical sensor exhibits altered sensitivity in response to decreasing stochastic noise in an output thereof. A gain parameter can be adjusted to alter...
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7297241 |
Method and a device for monitoring a medical microsample in the flow measuring cell of an analyzer
The invention relates to a method and device for the monitoring of a medical microsample in the flow measuring cell of an analyzer with regard to position and absence of bubbles by means of an...
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7291496 |
Ultrasensitive biochemical sensor
An electronic sensor is provided for detecting the presence of one or more analytes of interest in a sample. The sensor preferably comprises a field effect transistor in which conductance is...
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7267751 |
Programmable multiplexed active biologic array
The present invention is directed to devices and methods for carrying out and/or monitoring biological reactions in response to electrical stimuli. A programmable multiplexed active biologic array...
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7247231 |
Analyzer and method of testing analyzer
An analyzer measures the concentration of a specific component in a sample liquid supplied to a test piece equipped with first and second terminal parts. An analyzer (X 1 ) includes a stage on...
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7232512 |
System and method of sensitivity adjustment for an electrochemical sensor
A gas detector with a compensated electrochemical sensor exhibits altered sensitivity in response to decreasing sensitivity relative to both gas exposure and non-gas exposure. A sensitivity...
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7232510 |
Biosensor, measuring instrument for biosensor, and method of quantifying substrate
A biosensor, a measuring instrument for biosensor, and a method of quantifying a substrate contained in specimen liquid to reduce a measurement error by the biosensor; a biosensor, comprising at...
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7198754 |
Biological material detection element, biological material detection method and apparatus, charged material moving apparatus
A biological material detection apparatus which detects a charged biological material such as a gene or protein contained in a sample liquid is disclosed. A biological material detection element...
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7182845 |
Electrochemical sensing circuit having high dynamic range
An electronic sensing circuit for an electrochemical gas sensor cell providing high dynamic range is described. The electronic circuit utilizes an amplifier with a resistive feedback element to...
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7175753 |
Process and device for monitoring the hydrogen concentration
A process and a device are provided for monitoring the hydrogen concentration in a gas with at least one device, which comprises an electrochemical gas sensor and a bipotentiostat, e.g., for use in...
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7172897 |
Devices and methods for biochip multiplexing
The invention is directed to devices that allow for simultaneous multiple biochip analysis. In particular, the devices are configured to hold multiple cartridges comprising biochips comprising...
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7144553 |
Use of an array of polymeric sensors of varying thickness for detecting analytes in fluids
Chemical sensors for detecting the activity of a molecule or analyte of interest is provided. The chemical sensors comprise and array or plurality of sensors that are capable of interacting with a...
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7144494 |
Circuit arrangement for compensating interference signals in the control loop of a linear lambda probe
A compensation circuit (KS) is provided between the output of a differential amplifier (Diff_Amp) and the input of a controller (R). The compensation circuit generates a compensation signal, whose...
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7114325 |
Control system with a sensor
An improved engine control system using a NOx sensor is disclosed. In one example, the NOx sensor structure and/or signals are modified to improve distance transmission of NOx sensor output signals...
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7108774 |
Method for analyzing a papermaking process and an electrochemical sensor for analyzing liquid
A method for analyzing a papermaking process is disclosed in which several electrochemical quantities are measured from at least one liquid flow and fingerprints according to good process...
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7081193 |
Multi-stack isolation detection system
A system for detecting an isolation fault in a multi-stack fuel cell system. The system determines the percentage of the voltage from each stack in the multi-stack that contributes to the voltage...
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7052596 |
Linear lambda probe evaluation circuit
The pumping current source (P) required for operating the linear lambda probe is wired in such a manner that its inverting input is connected to the third probe terminal (Vp+), its non-inverting...
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7041206 |
Medical diagnostic system
A system for conducting a plurality of different medical diagnostic tests comprises a hand-held portable self contained instrument for engaging a disposable test cell containing a fluid to be...
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7017567 |
Device and method for measuring element temperature of air-fuel ratio sensor, and device and method for controlling heater of air-fuel ratio sensor
A device according to the present invention is provided with element temperature measurement voltage application circuit for temporarily applying a predetermined voltage for element temperature...
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7011630 |
Methods for computing rolling analyte measurement values, microprocessors comprising programming to control performance of the methods, and analyte monitoring devices employing the methods
The present invention relates to methods to increase the number of analyte-related signals used to provide analyte measurement values, e.g., when two or more analyte-related signals are used to...
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6994777 |
Chemical sensors utilizing conducting polymer compositions
A chemical sensor for detecting the presence of one or more analytes. The sensor comprises at least one electrode pair and a photopolymerized electrically conducting polymer composition disposed in...
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6955749 |
Sensor for measuring an ion concentration or gas concentration
The invention relates to a sensor for measuring ion concentration or gas concentration, with a gas- or ion-sensitive layer ( 6 ) that has two sensitive partial areas ( 20 and 21 ), two conducting...
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6936146 |
Electrochemical biosensor readout meter
An Electrochemical biosensor readout meter which can do selectively quantitative analysis of sample of living body such as blood sugar, cholesterol and other elements in blood is disclosed. It is...
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6932893 |
System for electrophysiological measurements
The present invention relates to a high through-put system for determining and/or monitoring electrophysiological properties of ion channels of ion channel-containing membranes, typically lipid...
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6921475 |
Open circuit potential amperometry and voltammetry
This invention provides approaches to improve the signal to noise ratio (S/N) in electrochemical measurements (e.g. amperometry, voltammetry, etc.). In particular, a method is described wherein the...
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6916415 |
Heater drive circuit and drive method for a gas sensor
A method and device for driving a gas sensor includes a three-point circuit determining a temperature of a gas sensor having a resistive heating element by determining a measuring current with a...
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