Gas detecting chamber

Abstract

The invention discloses a gas detecting chamber which comprises a first total reflection lens (1) and a second total reflection lens (2), wherein the cross sections of the first total reflection lens (1) and the second total reflection lens (2) are of a right triangle shape, and the slope of the first total reflection lens (1) is opposite to the slope of the second total reflection lens (2). The gas detecting chamber provided by the invention can effectively reduce the volume of the gas detecting chamber under the condition of ensuring longer measuring optical distance and is lower in manufacturing cost.

Description

technical field [0001] The invention belongs to the field of gas sensors and relates to a gas detection chamber. Background technique [0002] In modern production and life, with the improvement of people's living standards, human beings have higher and higher requirements for ecological environment purification, so the real-time detection of harmful gases in the air is particularly important. Especially in fields such as coal and chemical industry, the monitoring and forecasting of toxic and harmful gases in the air is an urgent problem to be solved. The application and research of fiber optic gas sensors in this field are developing vigorously. [0003] The monitoring environment of the fiber optic gas sensor can be open measurement or pumping detection. The longer the optical path of the gas chamber measurement, the higher the accuracy. When the measurement optical path of the gas chamber is long, the required volume of the gas chamber is large, the production cost is h...

AI Technical Summary

Problems solved by technology

When the gas chamber measures a long optical path, the required volume of the gas chamber is large, the production cost is high, and the laser wavelength is limited

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