Results 251 to 260 of about 465,961 (285)
Some of the next articles are maybe not open access.
Sensor Review, 1994
Summarizes some of the most commonly used gas sensors and describes how each one works. Covers solid state gas sensors; aqueous electrochemical gas sensors; paramagnetic gas sensors, photometric gas sensors; thermal conductivity gas sensors and fibre‐optic gas sensors.
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Summarizes some of the most commonly used gas sensors and describes how each one works. Covers solid state gas sensors; aqueous electrochemical gas sensors; paramagnetic gas sensors, photometric gas sensors; thermal conductivity gas sensors and fibre‐optic gas sensors.
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IEEE Sensors Journal, 2011
Soft ferrites are very important electronic materials because of their electrical and magnetic behavior. In last decade, remarkable efforts have been taken for the development of ferrite gas sensors in detection of toxic gas pollutants from vehicle exhaust, biological hazards, environment, and pollution monitoring.
Ashok B. Gadkari +2 more
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Soft ferrites are very important electronic materials because of their electrical and magnetic behavior. In last decade, remarkable efforts have been taken for the development of ferrite gas sensors in detection of toxic gas pollutants from vehicle exhaust, biological hazards, environment, and pollution monitoring.
Ashok B. Gadkari +2 more
openaire +1 more source
2010
The use of ion conductor using a sensor chip mounted in an exhaust gas channel. The sensor chip is exposed to 500 degree Celsius hot exhaust gas. The sensor chip is heated by a heating resistor. Electrodes of the ion conductor together with a set of covers are producible on a plate, which is isolated after the production of the electrodes.
HERAEUS SENSOR TECHNOLOGY GMBH +1 more
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The use of ion conductor using a sensor chip mounted in an exhaust gas channel. The sensor chip is exposed to 500 degree Celsius hot exhaust gas. The sensor chip is heated by a heating resistor. Electrodes of the ion conductor together with a set of covers are producible on a plate, which is isolated after the production of the electrodes.
HERAEUS SENSOR TECHNOLOGY GMBH +1 more
openaire +1 more source
2005
A benchmark for the heat transfer problem, related to modeling of a microhotplate gas sensor, is presented. It can be used to apply model reduction algorithms to a linear first-order problem as well as when an input function is nonlinear.
Jürgen Hildenbrand +2 more
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A benchmark for the heat transfer problem, related to modeling of a microhotplate gas sensor, is presented. It can be used to apply model reduction algorithms to a linear first-order problem as well as when an input function is nonlinear.
Jürgen Hildenbrand +2 more
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2007
The surface conductivity of many metal oxide layers is influenced by the composition of the ambient air. Small quantities of reducing or oxidizing gases can change the layer resistance by several orders of magnitude. The reversible adsorption or desorption processes at semiconductor surfaces are made selective to different gases by choosing appropriate
Werner Hagen +2 more
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The surface conductivity of many metal oxide layers is influenced by the composition of the ambient air. Small quantities of reducing or oxidizing gases can change the layer resistance by several orders of magnitude. The reversible adsorption or desorption processes at semiconductor surfaces are made selective to different gases by choosing appropriate
Werner Hagen +2 more
openaire +1 more source
Sensors and Actuators, 1981
Abstract The various ways that gaseous species can affect the resistance of a semiconductor are discussed, with particular emphasis on those where the effect is reversible and, hence, suitable for gas sensing. These latter include reduction/oxidation of the semiconductor, anion exchange with the semiconductor, adsorption directly on the semiconductor
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Abstract The various ways that gaseous species can affect the resistance of a semiconductor are discussed, with particular emphasis on those where the effect is reversible and, hence, suitable for gas sensing. These latter include reduction/oxidation of the semiconductor, anion exchange with the semiconductor, adsorption directly on the semiconductor
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2021
L'invenzione riguarda un sensore di gas che comprende: - un substrato isolante (2); - un pattern di linee conduttive (3) depositate sul substrato isolante (2) e che definiscono almeno due elettrodi conduttivi (31); - almeno uno strato funzionale (4) depositato sul substrato isolante (2) e su almeno parte di ciascuno dei due elettrodi conduttivi (31 ...
C. Bax +3 more
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L'invenzione riguarda un sensore di gas che comprende: - un substrato isolante (2); - un pattern di linee conduttive (3) depositate sul substrato isolante (2) e che definiscono almeno due elettrodi conduttivi (31); - almeno uno strato funzionale (4) depositato sul substrato isolante (2) e su almeno parte di ciascuno dei due elettrodi conduttivi (31 ...
C. Bax +3 more
openaire +1 more source