Mini-array poisonous gas detecting instrument

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 transmitted light 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 ...

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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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