Sealed gas chamber for testing comprehensive performance of optical fiber gas sensor

Abstract

The invention discloses a sealed gas chamber for testing comprehensive performance of an optical fiber gas sensor. The sealed gas chamber comprises a sealing cover, a body, a sealing ring, an incoming optical fiber hole, an outgoing optical fiber hole, a temperature-and-humidity probe mounting hole, an air inlet and an air outlet. According to the sealed gas chamber, double threads of the sealing cover and the sealing ring and a sealing gasket are utilized; furthermore the incoming optical fiber hole and the outgoing optical fiber hole are sealed by hot melt adhesive for ensuring airtightness of the sealed air chamber; and a temperature-and-humidity probe can be mounted in the temperature-and-humidity probe mounting hole for monitoring a temperature parameter and a humidity parameter of a working environment of a miniature gas sensor in the sealed gas chamber. Compared with other testing sealed gas chamber, the sealed gas chamber can realize comprehensive testing for the sensing performance and working environment parameters of the optical fiber gas sensor.

Description

technical field [0001] The invention belongs to the field of optical fiber technology, and relates to a sealed gas chamber used for comprehensive performance testing of optical fiber gas sensor components, which realizes comprehensive testing of the sensing performance of the optical fiber sensor components and working environment parameters. Background technique [0002] In recent years, due to the characteristics of high sensitivity, high precision, long-distance sensing and anti-electromagnetic interference of optical fiber sensor devices, in the fields of industrial production, aerospace, military weapons and other fields, fiber optic gas sensors have been more widely used than electrical sensors. With widespread attention, major universities and scientific research institutions at home and abroad have made more in-depth and thorough research on fiber optic gas sensing technology. [0003] Usually, in the process of testing the sensing performance of fiber optic gas sens...

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Problems solved by technology

[0004] The invention provides a sealed gas chamber for comprehensive performance testing of optical fiber gas sensor devices, which solves the problems of too large volume, poor airtightness and inconvenient operation of the sealed boxes used in performance testing of optical fiber gas sensor devices

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