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Smoke intensity detecting optical system and method thereof

An optical system and smoke density technology, applied in the direction of material analysis, measuring devices, and scientific instruments through optical means, can solve problems such as insufficient light intensity, large spectral error, and low utilization rate of reflecting mirrors, and achieve accurate smoke concentration Detection effect

Pending Publication Date: 2018-12-07
ANHUI AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0007] The present invention provides an optical system for smoke detection, the purpose of which is to solve the problems of insufficient light intensity, low utilization rate of reflective mirror surface, large spectral error and other problems in the existing method of smoke concentration detection using absorption spectrum

Method used

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  • Smoke intensity detecting optical system and method thereof
  • Smoke intensity detecting optical system and method thereof
  • Smoke intensity detecting optical system and method thereof

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Embodiment

[0055] Such as figure 1 , figure 2 As shown, this embodiment provides an optical system for smoke detection, which mainly uses optical principles to detect smoke concentration. The detection part 300. Wherein, the light source part 100 is mainly used for converging the more scattered and weaker light emitted by the light source to form a more concentrated and stronger light beam to increase the light intensity of the light source; the light splitting part 200 is used for converging the light source part 100 The light beam is divided into multiple light beams with basically the same light intensity; the flue gas channel part 400 can pass through the flue gas, and the passing flue gas can be passed by the multiple light beams separated by the light splitting part 200, so that the flue gas can absorb part of the light; The detection part 300 is used to receive the light beam passing through the smoke, and detect the absorption spectrum to perform smoke detection. The whole sy...

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Abstract

The invention discloses a smoke intensity detecting optical system and method thereof and belongs to the technical field of gas smoke intensity detection. The system comprises a light source part, a beam splitting part and a detection part, wherein the light source part comprises a luminous element, a primary collimating mirror, a focusing lens and a secondary collimating mirror arranged in sequence along a lighting direction; the beam splitting part comprises multiple beam splitters; the beam splitters are arranged for receiving light beams that are emitted by the luminous elements and transmit the secondary collimating mirror, and the multiple beam splitters are capable of equally splitting the light beams into multiple parallel beams; and the detection part is used for receiving the multiple parallel beams and detecting the spectra of the multiple parallel beams. The method comprises the following steps: performing condensation via the light source part, splitting the light into multiple light beams via the beam splitting part, and finally detecting the multiple light beams by the detection part so as to obtain the result. According to the combination of the collimating mirrors,the focusing lens and the beam splitters, the second-order errors caused by beam splitting can be reduced while improving the light intensity, the light intensity received by the detection end is achieved, and the detection accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of gas smoke detection, and more specifically relates to a smoke detection optical system and a method thereof. Background technique [0002] With the development of the world economy, environmental pollution is becoming more and more serious, and the detection and treatment of air quality has become the focus of attention. The technology of using spectral characteristics to analyze atmospheric components has been widely used in the fields of atmospheric trace gas detection, industrial process control, and emission monitoring of urban pollution sources. Therefore, it is of great significance to develop devices that can accurately and real-time measure air gas concentrations. [0003] In order to improve the detection sensitivity of absorption spectroscopy to low-concentration gases, increasing the length of the light beam passing through the gas sample is an effective method. Obviously, simply keeping the l...

Claims

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Application Information

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IPC IPC(8): G01N15/06G01N21/01G01N21/31
CPCG01N15/06G01N21/01G01N21/31G01N2021/0112G01N15/075
Inventor 刘路廖娟孙燕陈黎卿李亚伟杨路
Owner ANHUI AGRICULTURAL UNIVERSITY
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