A laser detection system for gas concentration

A gas concentration and laser detection technology, applied in the laser field, can solve the problems of reducing light energy and signal quality degradation, and achieve the effects of improving economy, good real-time performance, and wide application range

Inactive Publication Date: 2020-06-09
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such a process of laser detection of gas concentration, since a laser source is divided into multiple channels, the light energy of each channel is reduced, resulting in a decrease in signal quality and adverse effects on measurement.

Method used

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  • A laser detection system for gas concentration
  • A laser detection system for gas concentration
  • A laser detection system for gas concentration

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Embodiment Construction

[0017] The embodiments will be described in detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, the present invention proposes a system for detecting gas concentration by laser, which sequentially includes: laser source, reflective system 1, reflective system 2, independent reflective system 1, independent reflective system 2, reflective system 3, and receiving device according to the forward direction of the optical path , wherein, reflective system 1 is used to shoot the laser light emitted by the laser source to reflective system 2 at different angles, and reflective system 2 is used to convert the laser light from different angles shot from reflective system 1 into two groups of light rays in different directions The independent reflective system 1 is divided into two groups, which respectively receive two groups of light rays from the reflective system 2. The two groups of light are reflected by the independent reflective system...

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Abstract

The invention belongs to the technical field of laser and particularly relates to a laser detection system of gas concentration. The system sequentially comprises a laser source, a reflection system I, a reflection system II, an independent reflection system I, an independent reflection system II, a reflection system III and a receiving device in the light path advancing direction, wherein the reflection system I is used for reflecting laser rays emitted by the laser source to the reflection system II, and the reflection system II is used for changing the laser rays, reflected from the reflection system I, at different angles into two groups of rays in different directions; the independent reflection system I is divided into two groups to receive the two groups of rays from the reflectionsystem II, and the two groups of rays are crossed to form a two-dimensional measurement area through reflection of the independent reflection system I, arrive at the reflection system III after beingreflected by the independent reflection system II and are converged to the receiving device after being reflected by the reflection system III.

Description

technical field [0001] The invention belongs to the field of laser technology, in particular to a system for detecting gas concentration by laser. Background technique [0002] In the existing laser detection process of gas concentration, there are basically two methods of laser routing: single-path and multi-path. For the single-path method, each laser source used can only provide one laser light, which is received by the corresponding receiving device at the other end of the measured space. Such a laser detection process of gas concentration can only measure the average concentration on one optical path, and cannot detect the distribution of gas concentration on a two-dimensional plane. The multi-channel light source can realize the measurement of the concentration distribution on the cross section. There are two ways to realize multi-channel light sources: The first method is to use a separate laser source for each light source, and the laser light will be received by t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17
Inventor 王梦圆刘石
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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