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Laser gas cloud imaging system

An imaging system, laser gas technology, applied in the radio wave measurement system, climate sustainability, color/spectral characteristic measurement, etc., can solve the problems of fast gas drifting, unable to perform gas cloud imaging, etc., and achieve the effect of expanding application scenarios

Pending Publication Date: 2021-11-05
数量级(上海)信息技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the rotation speed of the pan / tilt is slow, and the leaked gas drifts away quickly, the scanning method of the pan / tilt can only detect the gas concentration information of a few specific preset points, and cannot perform gas cloud imaging

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] Such as figure 1 with figure 2 Shown, a kind of laser gas cloud imaging system, described laser gas cloud imaging system comprises:

[0025] Laser gas telemetry device for emitting laser light and receiving reflected laser signal;

[0026] The scanning mirror is used to quickly adjust the pointing of the laser emitted by the laser gas telemetry device;

[0027] The driving device is used to drive the scanning mirror to rotate the scanning mirror;

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Abstract

The invention discloses a laser gas cloud imaging system. The system comprises a laser gas telemetering device which is used for transmitting laser and receiving a reflected laser signal, a scanning mirror which is used for quickly pointing and adjusting the laser emitted by the laser gas telemetering device, a driving device which is used for driving the scanning mirror to rotate, and a control processing circuit which is used for carrying out coordination control on the laser gas telemetering device and the driving device and carrying out signal processing on the reflected laser signal to realize gas cloud imaging. The high-speed scanning mirror is additionally arranged at the optical front end of a conventional telemetering type TDLAS, and through high-speed scanning of the high-speed scanning mirror, the effect of gas cloud imaging can be achieved through the TDLAS. The sensitivity of the TDLAS system to trace gas leakage is considered, meanwhile, the shape of a gas cloud can be imaged, and prediction of the drifting direction of the gas cloud is achieved. The application scene of the TDLAS system is expanded, and a better means is provided for gas leakage detection.

Description

technical field [0001] The invention relates to tunable laser spectrum technology, in particular to a laser gas cloud imaging system. Background technique [0002] Tunable Laser Spectroscopy (TDLAS) is a technology used in gas detection in industries such as industry and mining. It can remotely detect gases with high precision. [0003] 1) There is no contact chemical reaction between the laser and the gas, and it will not affect the composition and form of the gas to be measured; 2) Realize remote telemetry, and remote measurement of dangerous gases can be carried out. The transmission distance of the sensor can reach several kilometers, ensuring the test Personnel safety; 3) Concentration detection is carried out through the resonant absorption of specific laser by gas, the measurement accuracy is extremely high, and the measurement lower limit can reach ppm level; 4) Intrinsically safe, the sensing end is not easily disturbed by electromagnetic radiation and does not gene...

Claims

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Application Information

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IPC IPC(8): G01N21/39G01S17/95G01S17/89
CPCG01N21/39G01S17/95G01S17/89Y02A90/10
Inventor 王海伟肖琳
Owner 数量级(上海)信息技术有限公司
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