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Gas sensor performance testing device

A gas-sensing sensor and testing device technology, applied in the field of sensor performance testing devices, can solve the problem that the performance testing device can only simulate a high temperature environment and the like

Active Publication Date: 2012-03-21
SHANGHAI JIAO TONG UNIV
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  • Abstract
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Problems solved by technology

[0005] The object of the present invention is to provide a gas sensor performance test device, which can not only simulate high temperature environment, but also simulate lo

Method used

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  • Gas sensor performance testing device
  • Gas sensor performance testing device

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Embodiment Construction

[0036] Such as figure 1 shown. A performance test device for a gas sensor, comprising: a test chamber 1 , a temperature and humidity control mechanism 2 , a circulation gas distribution mechanism 3 , and a gas sensitivity test mechanism 4 .

[0037] The test room 1 is used as a place for testing the performance of the gas sensor. The test room 1 includes a test area and a sample table 7, and the temperature and humidity control mechanism 2 is provided with an installation hole, and the sample table 7 is fixedly arranged in the installation hole and fixedly arranged directly above the vertical direction inside the test area; the test room 1 and The gas-sensitive testing mechanism 4 is connected by wires.

[0038] The temperature and humidity control mechanism 2 is used to control the test temperature and humidity of the test room. The temperature and humidity control mechanism 2 includes: heating tube layer, cooling tube layer, insulation layer 8, thermocouple 12, humidity re...

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Abstract

The invention relates to a sensor performance testing device, particularly to a gas sensor performance testing device, which includes a temperature control and humidity control mechanism, wherein the temperature control and humidity control mechanism is used for controlling the humiture of a test cabinet and includes a heating pipe layer, a refrigerating pipe layer, a thermal insulation layer and humidistats; a cavity is defined through the heating pipe layer; the test cabinet includes a test area which is the space area inside the cavity; heating pipes are arranged in the heating pipe layer; the heating pipe layer is wrapped by the refrigerating pipe layer; refrigerating pipes are arranged in the refrigerating pipe layer; the refrigerating pipe layer is wrapped by the thermal insulation layer; the heating pipe layer, the refrigerating pipe layer and the thermal insulation layer are provided with mounting holes; and the humidistats are fixed in the mounting holes and positioned in the test area. The invention solves the technical problem that the conventional gas sensor performance testing device can only simulate the high temperature environment.

Description

technical field [0001] The invention relates to a sensor performance test device, in particular to a gas sensor performance test device. Background technique [0002] Gas sensors can detect flammable, explosive, toxic and other gases at any time, so they are widely used in environmental monitoring, coal mining, geological disasters, medical diagnosis, national defense and military and other fields. In order to prevent gas leakage and improve the safety of actual production, people put forward higher requirements for the accuracy and reliability testing and identification of gas sensors. For example, the gas sensor test system is required to be able to test the gas sensor characteristics of the sensor under different temperatures, different humidity, and different concentration atmospheres, which puts forward more stringent requirements for the test device of the gas sensor. Therefore, it will be of great practical significance to research and develop a stable and reliable g...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 张亚非王剑陈海燕魏浩徐东
Owner SHANGHAI JIAO TONG UNIV
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