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Mini-array poisonous gas detecting instrument

A toxic gas and micro-array technology, applied in the direction of color measurement device, color/spectral characteristic measurement, sampling device, etc., can solve the problems of low precision, long response time, single detection method, etc., and achieve accurate results and fast analysis speed , the effect of high sensitivity

Inactive Publication Date: 2011-07-06
CHONGQING UNIV
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Problems solved by technology

But for now, most of the domestically produced gas detectors use catalytic combustion / electrochemical methods for detection, and the detection range is generally at the ppm (one millionth) level. The detection method is relatively simple and the response time is long. The accuracy is not high, and there is a big deficiency in the detection of tiny amounts of highly toxic gases

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  • Mini-array poisonous gas detecting instrument

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Embodiment Construction

[0029] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0030] Such as figure 1 As shown, the micro-array toxic gas detector of the present invention includes an incident light source system 1, a gas sensor array system 2, a transmitted light acquisition system 3 and a data analysis and processing system 4;

[0031] The gas sensor array system 2 includes a sealed cabin body 21, the interior of the sealed cabin body 21 is provided with an intermediate reaction chamber 22, and the interior of the intermediate reaction chamber 22 is provided with a gas sensor array plate 23 with metalloporphyrin as a sensitive substance. Both sides of the middle reaction chamber 22 are provided with an air inlet and an air outlet. The inciden...

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Abstract

The invention discloses a mini-array poisonous gas detecting instrument which can exhibit different colors when an air sensor reacts with poisonous gases, and the color of transmitted light can change correspondingly because incident light is spectrally absorbed. The mini-array poisonous gas detecting instrument comprises an incident light source system, an air sensing array system, a transmittedlight acquisition system and a data analyzing and processing system, wherein the air sensing array system is provided with a sealed cabin which is characterized by good sealing effect, convenient loading and unloading, high stability and reasonable structural design, the transmitted light acquisition system uses a colored linear array CCD which is characterized by good sensibility and photoelectric transformation property, the data analyzing and processing system takes a microprocessor as a core element to form a perfect system of element controlling, data receiving, processing and analyzing,and is characterized by high automation degree, quick analysis speed and precise result. The mini-array poisonous gas detecting instrument is compact in structure and small in size, is especially beneficial to quickly detecting the slight quantity of extremely poisonous gas, and has good developing prospect.

Description

technical field [0001] The invention relates to the field of gas detection, in particular to a microarray type toxic gas detector. Background technique [0002] Sarin, soman, and phosgene are highly toxic gases, and 0.01 mg can kill a person. In response to some sudden poisonous gas leakage incidents, counter-terrorism and anti-terrorism, and biochemical attacks in modern high-tech local wars, the rapid detection of the tiny content of these highly toxic gases is particularly important. [0003] At present, many gas detection technologies have been developed abroad, such as infrared spectrum detection, multi-channel optical path technology, intelligent nodes and field bus multi-information fusion technology, etc., which have greatly improved the accuracy, sensitivity and stability of gas detectors. But for now, most of the domestically produced gas detectors use catalytic combustion / electrochemical methods for detection, and the detection range is generally at the ppm (one ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/31G01J3/46G01N1/24
Inventor 廖海洋
Owner CHONGQING UNIV
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