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Mixed gas concentration detecting system

A technology of concentration detection and mixed gas, which is applied in the direction of color/spectral characteristic measurement, etc., can solve the problem that the concentration of various mixed gases cannot be detected rapidly and continuously, and achieve the effect of convenient detection

Inactive Publication Date: 2017-05-31
PINGGAO GRP +1
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a mixed gas concentration detection system, which is used to solve the problem that the concentration of various mixed gases cannot be detected rapidly and continuously in the prior art

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Embodiment Construction

[0015] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0016] An embodiment of a mixed gas concentration detection system of the present invention:

[0017] It includes a detection optical path and a switching device, wherein the switching device sets at least two different optical filters in the detection optical path in a translational or rotational manner.

[0018] Such as figure 1 The mixed gas concentration detection system shown includes: a detection optical path, a controller 1 and a stepper motor driver 2 connected thereto. The stepper motor driver 2 is connected to a stepper motor 3 with a rotating disk 4, and the rotating disk 4 is located on the stepper motor. 3 on the motor shaft, so that the rotating disc 4 can rotate with the stepping motor 3, and the rotating disc 4 is provided with three optical filters, which are respectively optical filter A, optical filter B and optical filte...

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Abstract

The invention relates to a mixed gas concentration detecting system. The concentration of one gas in mixed gas can be detected out by arranging a switching device in the mixed gas concentration detecting system, arranging at least two optical filters on the switching device and arranging one optical fiber in a detecting optical path through the switching device in a translational or rotary mode; when the switching device switches other optical filers to the detecting optical path, the concentration of another gas in the mixed gas can be detected out. The system can conveniently achieve concentration detection of different gases in the mixed gas.

Description

technical field [0001] The invention belongs to the field of gas concentration measurement, in particular to a mixed gas concentration detection system. Background technique [0002] The main components of traditional gas concentration detection devices are sensors based on electromagnetic technology. This type of detection device cannot be used to detect the concentration of ambient gases with strong electromagnetic interference, nor can it be used to detect the concentration of flammable and explosive gases. The existing solution is to use the anti-magnetic and explosion-proof characteristics of optical fiber, and apply optical fiber to the optical gas detection system, which can realize long-distance transmission of light, so that the circuit part can be used far away from the site, thereby realizing a strong electromagnetic interference environment Under the online gas concentration detection. [0003] However, the current optical fiber-based gas concentration detection...

Claims

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Application Information

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IPC IPC(8): G01N21/31
Inventor 孙银山狄海廷钟建英韩国辉张友鹏张文涛宋亚凯于维娟王春艳李琼可
Owner PINGGAO GRP