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6475439 |
Sealed replaceable sensor
A gas detector having a sealed sensor assembly is only exposed to the ambient atmosphere when the detector is to be placed in the service. The detector is placed in the service by removing an...
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6467333 |
Trace level detection of analytes using artificial olfactometry
The present invention provides a device for detecting the presence of an analyte, such as for example, a lightweight device, including: a sample chamber having a fluid inlet port for the influx of...
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6463789 |
Gas sensor
A gas sensor, comprises a substrate, a sensor unit including a functional layer and an electrode structure, and an electric heating and/or temperature measuring arrangement. An electrically...
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6463788 |
Structure of electric connector of gas sensor
An improved structure of an electric connector of a gas sensor is provided which is designed to establish a firm electric connection between each electrode terminal formed on a sensing element and...
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6457347 |
Glow discharge detector
A highly sensitive electronic ion cell for the measurement of trace elements in He carrier gas which involves glow discharge. A constant wave (CW) glow discharge detector which is controlled...
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6453723 |
Gas sensor device
A gas sensor device including a housing provided with an inlet for introducing a gas to be measured, a sensor element capable of detecting oxygen gas or the like contained in the gas and a base...
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6453726 |
Gas sensor with U-type gasket
The gas sensor comprises a sensor element; a shell disposed around at least a portion of the sensor element, the shell having a projecting edge from a first end, wherein a portion of the projecting...
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6450007 |
Robust single-chip hydrogen sensor
A robust single-chip hydrogen sensor and a method for fabricating such a sensor. By adding an adhesion-promoting layer between the body of a sensor and an on-chip hydrogen-exposed...
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6446488 |
Gas concentration measuring apparatus producing current signals as a function of gas concentration
A gas concentration measuring apparatus is provided which may be employed in measuring an air-fuel ratio of mixture sucked into automotive engines. The apparatus includes a gas concentration sensor...
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6442996 |
Method and apparatus for measuring the calorific value of a gas
A method and apparatus for measuring the calorific value of a gas. The apparatus includes a chamber to which a gas in question, for example natural gas, is supplied through an inlet and leaves...
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6435007 |
Materials breakthrough monitoring sensor system
A sensor system that monitors agent breakthrough through a vapor barrier and related test process. The system includes a substantially airtight test chamber for retaining the vapor barrier, which...
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6432362 |
Chemical sensor and coating for same
An acoustic wave based-chemical sensor utilizing a crystal substrate and a coating of at least two blended materials is disclosed. The blended materials comprise a combination of (a) a high glass...
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6433694 |
Sensor having improved desorption times and related control circuitry
A sensor and method for rapidly determining the absence of a vapor in a gas or fluid is described as well as a method for constructing the sensor. The sensor comprises a resistive element having...
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6423272 |
Fluid sensing device using discotic liquid crystals
The present invention discloses a fluid sensing device comprising a substrate having at least one type of dicotic liquid crystals disposed therein and arranged to form an array of columnar...
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6422066 |
Sensor capsule for CO2 sensor
A sensor capsule to facilitate positioning of an analyte sensitive element such as a CO 2 sensor at the end of a fiber optic probe, which discloses a dye layer defined by a dye well, fluorescent...
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6418779 |
Structure of oxygen sensor
An oxygen sensor used with an electronic control unit in a car and having a metal housing formed by a front cap, a rear cap and an intermediate barrel and secured by a lock nut. A probe is mounted...
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6411905 |
Method and apparatus for estimating odor concentration using an electronic nose
A system and method for obtaining an estimate of the concentration of an odor in an air sample from data obtained by evaluating the sample with a sensor-array type electronic nose. Principal...
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6408680 |
Sensor and method for the manufacture
A sensor for determining an oxygen content in an exhaust gas of an internal combustion engine includes a receptacle, arranged in a longitudinal bore of a metal housing, for a sensing element. The...
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6401521 |
Method of preventing movement of a planar sensor element packaged in a mat support
In an exemplary embodiment, the planar sensing element ( 80 ) is secured by inclusion of a disk element support provided between the lower end of an inner shield and the lower shoulder of an outer...
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6401522 |
Gas analyzer and method of calibrating the same
A gas analyzer monitors concentration of discharged NOx even if an air ratio X is less than 1. The gas analyzer has three internal spaces and four electro-chemical pumps. The first space effects...
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6397661 |
Remote magneto-elastic analyte, viscosity and temperature sensing apparatus and associated methods of sensing
An analyte, viscosity, or temperature sensing apparatus for operative arrangement within a time-varying magnetic field, including a sensor with an outer surface that is chemically, frictionally, or...
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6398118 |
Thermostat incorporating thin film carbon dioxide sensor and environmental control system
A system for monitoring and modifying the quality and temperature of air within a conditioned space includes a blower unit, a damper unit for selectively admitting outside air into the conditioned...
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6389877 |
Double-headed mass sensor and mass detection method
There is provided a double-headed mass sensor ( 25 ) in which between a first connecting plate ( 22 A) joined to a first diaphragm ( 21 A) at respective sides and a second connecting plate ( 22 B)...
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6382013 |
Method of reading an oxygen sensor input
An adjustment circuit and method for reading a measurement output of an automotive oxygen sensor provide correction for outgassing of the sensor and inversion of the measurement output. The...
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6370941 |
Gas sensor and gas sensor system
The conduit tube 3 and the conduit tube 4 to flow the carrier solution to the gas exchanger 7 are provided, and in the conduit tube 3 , the reference pH electrode 14 is provided, and in...
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6363772 |
System and method for detection of a biological condition
A system and method that allows for early detection of biological conditions, such as a disease, through analysis of appropriate gaseous samples. The system and method are particularly amenable to...
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6360581 |
Gas sensor and method for manufacturing the same
A gas sensor 1 includes a casing 10 which covers a sensing element 2 and includes two cylindrical members. The cylindrical members are axially disposed in such a manner as to overlap each...
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6347543 |
Measuring sensor and method for its fabrication
A measuring sensor, in particular, for determining the oxygen content in exhaust gases of internal combustion engines, includes a ceramic molding arranged in a metal housing for the accommodation...
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6346420 |
Method of analyzing a gas mixture to determine its explosibility and system for implementing a method of this kind
In this method of analyzing a gas mixture containing at least one inflammable gas to determine its explosibility, a resistive heating element ( 15 ) is energized in an analysis enclosure ( 12 )...
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6341519 |
Gas-sensing probe for use in a combustor
In one embodiment, a gas-sensing probe for use in a combustor includes an elongated support member, a housing, a gas sensor and sensor wires. The housing is attached to an end of the support...
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6336354 |
Gas concentration measuring apparatus compensating for error component of output signal
A gas concentration measuring apparatus is provided which measures the concentration of a given gas using a gas sensor. The gas sensor includes a sensor element producing a gas concentration signal...
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6324897 |
Partial-pressure sensor
A partial pressure sensor is disclosed which is suitable for determining the partial pressure of a gas or vapor in a thermally uncontrolled gas atmosphere over a large measurement range and with...
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6321587 |
Solid state fluorine sensor system and method
A gaseous fluorine detection system is provided which includes a generally enclosed sample cell containing a substrate comprising a material which interacts with fluorine gas to generate radiant...
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6311543 |
Connection device for ceramic gas sensor element
A connection device for a ceramic gas sensor element includes a sensor assembly and a ring member. The sensor assembly has a ceramic element with a thickness t, an electrical connection portion...
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6305214 |
Gas sensor and methods of forming a gas sensor assembly
A gas sensor assembly is provided with a non-conductive housing portion and a plurality of conductive housing portions, each of which are conductively separated from each other, and the conductive...
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6289719 |
Method for operating a gas sensor
A method of operating a gas sensor having two sensor electrodes whose output signal is evaluated in an evaluation circuit connected downstream of the sensor electrodes, the sensor electrodes being...
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6286361 |
Method and apparatus for remotely detecting pressure, force, temperature, density, vibration, viscosity and speed of sound in a fluid
An apparatus for detecting pressure in a hollow fan blade of a turbofan gas turbine engine comprises a magnetostriction transducer arranged in a sub chamber of the fan blade which is interconnected...
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6276192 |
Gas detecting sensor and device for controlling ventilation systems
There are provided with a gas detecting sensor and a gas detecting device for controlling a ventilation system of a vehicle using the gas detecting sensor. The gas detecting sensor of the present...
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6276191 |
Oxygen sensor
An oxygen sensor for determining the oxygen concentration in the exhaust gas flow of an internal combustion engine. The sensor includes an outer electrode exposed to the exhaust side and a...
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6266998 |
System for measuring the concentration of gases
A system for measuring the concentration of gases using gas-selective indicator substances in a chip-like carrier (1) with an optoelectronic scanning device (2). The chip-like carrier (2) has...
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6266997 |
Thermal management of a sensor
In an exemplary embodiment, the present invention provides an exhaust constituent sensor comprising a planar sensing element securely held in place within a tubular inner shield by known methods....
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6263723 |
Multilayered gas sensor
The present invention provides a gas sensor element having properties capable of detecting methane and carbon monoxide selectively with 1 sensor by improving gas selectivity of the semiconductor...
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6247350 |
Sensor
A sensor such as for sensing dissolved oxygen in plural cells spaced apart from each other by a predetermined distance includes projection sections provided at intervals spaced according to the...
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6235243 |
Gas sensor array for detecting individual gas constituents in a gas mixture
A gas sensor array for detecting individual gas constituents in a gas sensor, said array being composed of a carrier member of a non-conductive substrate having a plurality of individual sensor...
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6230545 |
Optode for the determination of gases
A gas-sensitive sensor membrane for the determination of gas concentrations in gas mixtures is proposed. Also proposed are a method and an apparatus for determining gas concentrations based on the...
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6223583 |
Sensor element seal for a detector
A sensor for determining an oxygen content of an exhaust gas of an internal combustion engine includes a flat-plate sensing element that is inserted in a gas-tight fashion via a hybrid seal in a...
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6212939 |
Uncoated microcantilevers as chemical sensors
A method and device are provided for chemical sensing using cantilevers that do not use chemically deposited, chemically specific layers. This novel device utilizes the adsorption-induced variation...
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6205843 |
Gas sensing element and a method for measuring a specific gas concentration
A gas sensing element having a sample gas chamber into which a sample gas is introduced, and a reference gas chamber into which a reference gas is introduced. A sensor cell detects a specific gas...
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6202471 |
Low-cost multilaminate sensors
Methods of monitoring environmental variables in general and chemical composition in particular, and sensors for such monitoring. These low-cost sensors comprised multiple layers in a laminated...
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6202467 |
Hybrid integrated circuit for a gas sensor
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