Environmental chamber temperature uniformity testing method and sample containing device

Abstract

The invention discloses an environmental chamber temperature uniformity testing method and a sample containing device. The method comprises the following steps: S1, manufacturing a sample holder, wherein the sample holder comprises a frame structure and a panel wrapping the frame structure, the top of the frame structure serves as a mounting layer, a bottom plate is used for carrying of detectionequipment and necessary containing of heavy samples, and a plurality of bearing layers parallel to the bottom plate are further arranged on vertical supporting columns; S2, arranging temperature sensors at each corner and each bearing layer of the sample holder; S3, moving the position of the sample holder in the environment chamber, obtaining the numerical values of all temperature sensors on thesample holder at each position, and calculating the standard deviation; and S4, when the standard deviation in the temperature acquisition data area reaches 95%, taking the position as the optimal position in the environment chamber. According to the invention, the bearing requirements of different positions of samples and measuring equipment and the problems of accurate distribution and fixationof sensors during environment chamber equipment detection at an extreme temperature are solved. And through sensor point distribution monitoring, temperature uniformity detection in the space of themovable measuring frame can be realized.

Description

technical field [0001] The invention belongs to the technical field of equipment inspection and detection, and in particular relates to a method for testing the temperature uniformity of an environmental chamber and a sample holding device. Background technique [0002] The environmental chamber is composed of a sealed chamber, air filter, air temperature and humidity adjustment control and monitoring system, etc., and is a test equipment that simulates environmental conditions by controlling environmental factors such as temperature and relative humidity inside the chamber. Environmental chambers are now widely used for environmental simulation tests to carry out research on the environmental adaptability of electronic and electrical products and emergency equipment, and to test whether the equipment operates normally under extreme temperature (extreme high temperature, extreme low temperature) conditions. [0003] Environmental tests at extreme temperatures are usually req...

AI Technical Summary

Problems solved by technology

At this time, the temperature in the experimental cabin is extremely high or low (the extreme temperature has exceeded the limit that the human body can bear), and the load on the human body of the experimenter entering the cabin is relatively large and unsafe.

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