How to measure the quality of high and low temperature test chambers

The use of high and low temperature testing machines is the high temperature and low temperature reliability test of industrial products. It is very important for electronic and electrical, aerospace and some high-tech research institutions. Through the cyclic changes of high temperature and low temperature, the performance indexes of the tested products are tested. Compared with the constant temperature control system, the high and low temperature test chambers have a wider temperature control range, and the performance indexes are required to reach the national standard GB10592-89. Technical conditions of the low temperature test chamber.

Shanghai Bao test will be carefully explained: from the classification, high and low temperature alternating test chambers can be divided into alternating test and constant temperature test according to different test methods and industry standards. These two methods can be regarded as high and low temperature tests. The upgrade based on the box is expanded. The alternating test chamber can set the high temperature, low temperature and time required for the temperature to be within the instrument parameters. At this time, the high and low temperature test chamber will follow the set procedure, the temperature, humidity and other aspects inside. The situation is closer to the harsh natural climate, allowing for more scientific and objective detection of various parameters of the sample.

The quality of the high and low temperature alternating test machine is mainly determined by its temperature stability, temperature range, temperature uniformity and temperature deviation. The ultimate goal is to allow high and low temperature test chambers to better simulate the laws of temperature changes in the natural environment. Among them, the temperature uniformity can best reflect the quality of the test box. It mainly refers to the large value of the Zui between any two points in the working space at any time interval after the temperature is stable. The general standard is less than or equal to 2 degrees Celsius.