Method and apparatus for monitoring intelligent infrared multi-component harmful gas

A harmful gas and monitoring device technology, which is applied in measuring devices, analytical materials, color/spectral characteristic measurement, etc., can solve the problems of low measurement accuracy of electrochemical methods, dependence on imports of key components, complex structure, etc., so as to save quantity and avoid Discrete, high-response effects
CN101281125BInactive Publication Date: 2011-09-07赵瑜
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
赵瑜
Publication Date
2011-09-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an intelligent infrared multi-component noxious gas monitoring method and the equipment, an infrared light source self with a parabolic reflection mirror sends out infrared light focused by a focusing lens, after vortically filtered and modulated by a gas related filtering round and the focused infrared light enters the entrance port of a multiple reflections gas absorption cell, the testing multi-component gas flows through the multiple reflections gas absorption cell, after reflected many times in the multiple reflections gas absorption cell the incident light outgoes from an exit portal, and is received by an infrared detector, which converts a light signal to an electrical signal, the electrical signal is amplified and sent to a signal processing and a display unit to carry on analysis processing, simultaneously, communicates with a PC machine. Because the invention combines with the gas related filter and the optical filter, the problem of the cross interference of the testing of the multi-component gas can be solved well, a time multi-beams system formed by the gas related filtering round only needs one infrared detector, so that the quantity of the infrared detectors can be saved, and the divergence due to different detectors can be avoided.
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Description

Technical field:

[0001] The invention belongs to the technical field of environmental monitoring, emergency response and early warning, in particular to an intelligent infrared multi-component harmful gas monitoring method and device. Background technique:

[0002] Quantitative analysis of multi-component gases has a wide range of applications in the field of environmental protection. Changes in industry, transportation, and climate are putting increasing pressure on environmental protection. The development of advanced gas monitoring technology in the field of environmental protection is in line with my country's policy orientation of building a conservation-oriented society and energy conservation and emission reduction. Therefore, high-precision detection of harmful gases is of great significance to economic and social development.

[0003] At present, gas measurement methods mainly include electrochemical method, non-dispersive infrared method, laser absorption harmonic...

Claims

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