Reflection optical system of long-optical-path gas absorption cell

Abstract

The invention provides a long-optical-path gas absorption cell reflection optical system which comprises a first reflector and a second reflector, the first reflector and the second reflector are oppositely arranged at an interval, the second reflector is provided with a light input port and a light output port, and the first reflector, the second reflector, the light input port and the light output port jointly form a multiple-reflection optical system; and the collimated light beam enters through the light input port, is reflected between the reflector I and the reflector II, and finally exits through the light output port. According to the invention, a collimated light beam can reach a longer optical path in a limited space and can be reflected for more times; and the system is simple in structure, relatively simple in optical adjustment, easy to operate and stable in performance, and can be widely applied to various detection environments.

Description

technical field [0001] The invention relates to the technical field of optical gas sensor detection, in particular to a reflection optical system of a long optical path gas absorption cell. Background technique [0002] Industrial gas sensors are an important guarantee for gas safety. With the rapid development of my country's economy and the continuous optimization of industrial applications of the Internet of Things, industrial sensors have gradually developed in the direction of low power consumption, miniaturization, and portability in recent years. The existing optical gas sensor has the advantages of long life, high precision, and anti-poisoning, and is widely used in the field of gas detection; the optical gas absorption cell is the core component of the sensor, which directly determines the performance and shape of the sensor. [0003] With the improvement of precision requirements in the field of gas detection, the optical path length of the optical gas absorption c...

AI Technical Summary

Problems solved by technology

However, the traditional optical gas absorption cell has defects such as difficulty in achieving multiple reflections and short optical path in a limited space, which leads to restrictions on the detection environment and detection concentration, and cannot meet the needs of customers.

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