Gas detection device and method and computer readable storage medium

Abstract

The invention is applicable to the technical field of gas detection, and provides a gas detection device, a gas detection method and a computer readable storage medium, the gas detection device comprises a laser, a detection gas chamber, a reference gas chamber, an optical detector, a laser driving unit and a signal processing unit, the detection gas chamber and the reference gas chamber are arranged on the transmission light path of the detection laser beam, so that the structure of the gas detection device can be simplified, and the size is reduced; working parameters of the laser are controlled by the laser driving unit according to electric signal feedback output by the optical detector, and the central wavelength of the detection laser beam is adjusted, so that the absorption peak wavelength of the gas to be detected is within the central wavelength range of the detection laser beam, and the central wavelength of the detection laser beam is stable and is not interfered by interfering gas in the environment; the sensitivity of the gas detection device can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of gas detection, and in particular relates to a gas detection device, method and computer-readable storage medium. Background technique [0002] Tunable Diode Laser Absorption Spectroscopy (Tunable Diode Laser Absorption Spectroscopy, TDLAS) technology is a widely used gas detection technology at this stage. within the wavelength range of the absorption peak of the gas, and then control the tunable laser light source to emit the detection laser beam to the gas to be measured, and detect the detection laser beam passing through the gas to be measured by the optical detector to obtain the absorption spectrum of the gas to be measured, so that it can be analyzed The absorption spectrum obtains the concentration information of the gas to be measured. Tunable laser light sources usually have the problems of large deviation between the central wavelength of the detection laser beam and the absorption peak wavele...

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Problems solved by technology

[0003] In view of this, embodiments of the present invention provide a gas detection device, method, and computer-readable storage medium to solve the problem that the tunable laser light source usually has a large deviation between the central wavelength and the absorption peak wavelength of the gas to be measured, and the detection laser beam is easily affected. The interference of interfering gases in the environment and the long-term drift of the center wavelength of the detection laser beam

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