Patent
Hand held device for the detection of trace gases
Reads0
Chats0
TLDR
In this article, a portable hand-held instrument for the detection of trace gases uses a battery powered circuit board capable of operating and measuring an array of plural metal oxide semiconductor (MOS) gas sensors of varied sensing material deposition geometry.Abstract:
A portable, hand-held instrument for the detection of trace gases uses a battery powered circuit board capable of operating and measuring an array of plural metal oxide semiconductor (MOS) gas sensors of varied sensing material deposition geometry. The instrument includes one unmodified MOS gas sensor (A) and plural MOS sensors (B-E) modified with a crystalline porous solid such as a zeolite or metal oxide material in a varied deposition geometry across the sensor array to provide selectivity to a range of different gases.read more
Citations
More filters
Patent
Indoor harmful gas monitoring apparatus
TL;DR: In this paper, an indoor harmful gas monitoring apparatus consisting of a gas sensor array, a data acquisition module and a monitoring module is presented, where the gassensor array is used for detecting various harmful gases, and the sensor array comprises a plurality of sensors.
References
More filters
Patent
Handheld sensing apparatus
TL;DR: In this article, the authors present a vapor sensing device that is sufficiently small and lightweight to be handheld, and also modular so as to allow the device to be conveniently adapted for use in sensing the presence and concentration of a wide variety of specified vapors.
Patent
Method and apparatus for controlling a gas-emitting process and related devices
TL;DR: In this article, a method and apparatus for controlling a process such as a chemical reaction that emits a multi-component mixture of gases is presented, and a device to which a product of such a reaction is transmitted.
Patent
Operating method and sensor for gas analysis
TL;DR: In this paper, a method for using a dynamic gas sensor for analysis and detection of one or more gases or gas components of a gas mixture includes using the response time constant for the gas sensor to the gas as a measured value so that detection ensues from the response times constant.
Patent
Food applications of artificial olfactometry
TL;DR: In this article, a method and devices for evaluating agriculture products, and more particularly, to assessing and monitoring the quality of food products using electronic noses, were presented, where a quality control monitoring device was provided having first sensor array (13) located in a first vessel (11) and a second sensor array located in another vessel (12).
Patent
Metal oxide semiconductor catalyst hydrocarbon sensor
TL;DR: In this paper, a sensor for selectively detecting HC classes, e.g., alkanes, alkenes and aromatics, in a gas mixture comprising a metal oxide seiniconductor catalyst which is catalytically active for the selective HC classes; the reactions selected from the group consisting of partial oxidation, oxidative dehydrogenation, oxidative coupling and isomerization.