Demystifying the law of temperature change in constant temperature and humidity test chamber

The main function of the constant temperature and humidity test chamber is to carry out high and low temperature impact test on the tested products through high temperature and low temperature transient conversion, and to test the product's resistance to natural extreme cold and extreme heat. Perhaps some customers will ask, is there any law to follow the machine temperature change? Here is a brief introduction by everyone from our company:

There are two ways to change the temperature of the constant temperature and humidity test chamber. One is the average temperature rise and fall speed, and the other is the linear temperature rise and fall. It is actually the average speed every 5 minutes. The average speed of the whole process refers to the ratio of the difference between the highest temperature and the lowest temperature and the time in the temperature range of the test box. At present, the technical parameters of the variable temperature rate provided by the foreign environmental test equipment manufacturers refer to the whole average rate.

The constant temperature and humidity test chamber linear temperature rise and fall speed refers to the variable temperature rate that can be guaranteed in any 5 min period. In fact, for the rapid temperature change high and low temperature test chamber, the difficulty of ensuring the linear temperature rise and fall is the largest and most critical period. The vortex flowmeter can reach the last 5 min of the cooling section. Cooling rate. Therefore, the test equipment preferably has two parameters: the average average temperature rise and fall speed and the linear temperature rise and fall speed (average speed per 5 minutes). Generally speaking, the linear temperature rise and fall (average speed per 5 minutes) is 1/1 of the average average temperature rise and fall speed. 2.

Demystifying the law of temperature change in constant temperature and humidity test chamber

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