Optical fiber sensing gas detection device
A technology for sensing gas and detection device, which is applied in measurement devices, material analysis by optical means, instruments, etc., can solve problems such as restricting the production safety and steady development of coal mines, and achieve real-time detection and detection with high precision and high sensitivity Effect
Inactive Publication Date: 2016-01-13
李俊娇
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Problems solved by technology
If the gas concentration cannot be detected quickly and accurately, it will greatly restrict the safe and stable development of coal mine production. Therefore, the timely detection of gas concentration has become the primary and necessary choice for coal mine enterprises in safe production.
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[0030] Specific implementation method: combined with figure 1 And attached figure 2 , to further explain the present invention.
[0031] An optical fiber sensing gas detection device, including a laser control circuit (1-1), a laser (1-2), an optical emission device (1-3), an electric air inlet of a gas chamber (1-4), and a measuring gas chamber (1-5), gas chamber electric outlet (1-6), optical receiving detector (1-7), laser control circuit (2-1), laser (2-2), optical emission device (2-3 ), air chamber electric inlet (2-4), measuring air chamber (2-5), air chamber electric outlet (2-6), optical receiving detector (2-7), laser control circuit (k- 1), laser (k-2), optical emission device (k-3), electric air inlet of air chamber (k-4), measuring air chamber (k-5), electric air outlet of air chamber (k-6) , optical receiving detector (k-7), data acquisition and processing (8), computer display (9);
[0032] Laser control circuit (1-1), laser (1-2), optical emission device (...
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The invention discloses an optical fiber sensing gas detection device, including a laser control circuit, a laser, an optical emitter, a gas chamber electric air inlet, a measuring gas chamber, a gas chamber electric outlet, an optical reception detector, a data acquisition and processing device and a computer display. The laser control circuit makes the laser stably emit light with a specific wavelength; the optical emitter transmits collimated light to the measuring gas chamber; the optical reception detector treats the electric signal with concentration information; the computer display displays the processed signal; and the experimental results and the experimental data are recorded. By controlling the electric air inlet and electric air outlet of the air chamber, the system can run in a sampling detection mode and online detection mode. The sampling detection mode can effectively save energy; and the online detection mode can quickly detect the concentration of gas on a real time basis, and has alarm function.
Description
technical field [0001] The invention relates to an optical fiber sensor gas detection device, which uses an optical fiber sensor to realize the gas detection function, and belongs to the field of coal technology application, in particular to the field of gas monitoring technology. Background technique [0002] Coal is currently the most important energy source in our country. In the process of coal mining, the gas concentration is often too high, resulting in mine accidents. Compared with developed countries and even developing countries, there is a big gap in the death rate of mining accidents in our country. The death rate per million tons can be lower than 0.1%. In 2010, the number of deaths in gas accidents in our country hit 623, and 100 of them The mortality rate per 10,000 tons reached 0.749%. This gap requires us to pay close attention to and work hard to develop and solve problems. [0003] Gas is a general term for harmful gases in a specified environment or a sp...
Claims
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Inventor 吴迪李东辰李俊娇
Owner 李俊娇