Minitype laser methane sensing probe

Abstract

The invention discloses a minitype laser methane sensing probe. The minitype laser methane sensing probe comprises a filter screen cover, an air chamber core, a circuit board, a front sleeve, a transfer sleeve and a cable. According to the minitype laser methane sensing probe, the design of a stacked-structure circuit is adopted, the problem that the size of the probe is affected by the huge volume of the circuit is solved, the waste of the space of the probe is reduced, the whole volume of the probe is shrunk to 1/2 of the original volume under the condition that the diameter of the probe is guaranteed, and great convenience is provided for the different special application occasions. The traditional distribution form of a laser and a photovoltaic conversion receiver is changed, a group of reflectors are used, so that incident light emitted from the laser is reflected by the two mutually matched reflectors and is received by the photovoltaic conversion receiver, the propagation path of light is changed through the reflectors, the optical distance of an air chamber is increased by more than one time under the condition of the same volume, the effects of increasing the optical distance and saving the space are achieved, and the gas detection result is more accurate.

Description

technical field [0001] The invention relates to the technical field of gas sensors, in particular to a miniaturized laser methane sensing probe. Background technique [0002] Laser methane sensor probes are mainly used in coal, petrochemical, electric power, metallurgy and other special fields where gas outburst or leakage may occur and pose a major threat to people's property and life safety. However, most of the existing laser gas sensors that remain in the laboratory stage are bulky, high power consumption, and generally have a size of more than 200mm, which cannot be miniaturized so that this technology cannot be widely promoted in the product field, and many applications require the product. Miniaturization, such as wall-mounted sensors in the coal mine field, flammable gas alarms in the petrochemical and fire-fighting fields, and the miniaturization of probes are of great significance to the promotion of laser detection technology in the field of methane gas detection....

AI Technical Summary

Problems solved by technology

However, most of the existing laser gas sensors that remain in the laboratory stage are bulky, high power consumption, and generally have a size of more than 200mm, which cannot be miniaturized so that this technology cannot be widely promoted in the product field, and many applications require th

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