Device and method for detecting material outgassing product under space living environment

Abstract

The invention relates to a device and a method for detecting material outgassing product under space living environment, which belongs to the field of electronic testing technology. The device mainly comprises an observation window, an object platform, a vacuum chamber cabin door, a vacuum measurement system, a temperature control system, a sample container, a vacuum chamber, a gas charging valve, a flow rate control meter, a trim valve, a filter, a pressure meter, a relief valve, a dry nitrogen container, a high-purity nitrogen container, a high-purity oxygen container, a sampling device, an oxygen analyzer, a gas collection valve, a vent valve, a rough valve, a dry pump, a fore valve, a gate valve and a magnetic molecular pump. The method comprises a sample preparation step and a sample outgassing product analysis step. The device and the method provided by the invention overcome the disadvantage of the prior art which only focuses on the material outgassing problem under vacuum condition, and can evaluate the composition and content of material outgassing products under low-pressure environment in crew cabins of space station, spacecraft and so on.

Description

technical field [0001] The invention relates to a detection device and method for outgassing products of materials in a space human-habitation environment, in particular to a detection device and method for a non-metallic material outgassing product in a space human-habitation environment, and belongs to the field of electronic testing. Background technique [0002] In the study of material outgassing in vacuum, there are a lot of work at home and abroad to study the outgassing behavior of materials under vacuum conditions. The research includes the outgassing performance of non-metallic materials in vacuum, including the total mass loss of non-metallic materials in vacuum, collected condensable volatiles, water vapor resorption, etc. And developed related testing standards. In the prior art, the components of the outgassed product have been analyzed by heating the outgassed product under vacuum and detecting it with a mass spectrometer. However, the above two methods are ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the method of not simultaneously obtaining the outgassing composition and content of materials under vacuum conditions in the prior art, it is impossible to qualitatively and quantitatively study the defects of outgassing pollution of non-metallic materials in space human habitats such as spaceships and space station crew cabins, the method of the present invention The purpose is to provide a sampling device and method for outgassing products of non-metallic materials in a space human-habitation environment, so as to make the research and analysis of outgassing pollution more comprehensive

Images