Four Temperature Indexes of The High And Low Temperature Test Chamber
The high and low temperature test chamber is a series of temperature and humidity equipment in the environment test chamber, which can be used as the temperature test of the electrical, electronic, aerospace, colleges and other related products. Therefore, the temperature related performance needs to be recognized in the test process, and it can be from the temperature range, temperature uniformity, temperature deviation and the temperature deviation. Temperature fluctuations and other aspects of understanding.
(1)Temperature range--the limit temperature (extreme high temperature and extreme low temperature) that the product can tolerate or reach in the workshop. Generally, it contains a concept that can control the constant, and it should be a relatively long time and the extreme value of stable operation. The standard requirement is usually two parameters, which are less than 1 degrees, or 0.5 degrees centigrade.
(2)Temperature uniformity--The old standard is called uniformity, and the new standard is called gradient. When the temperature is stable, the maximum temperature difference between any two points in the working space will be at any time interval. This index can be used to assess the core technology of the product compared to the temperature deviation index below, so many companies' samples and plans will be deliberately hidden in this item. The standard requirement is usually less than 2 degrees centigrade.
(3)Temperature deviation-- the difference between the mean value of the center temperature of the workspace and the average temperature of the other points in the working space can be obtained at any given interval of time after the temperature deviation is stable. Although the new and old standards are both in the same definition and address, the test has been changed, so the new standard is more practical and more demanding, but the time for assessment will become shorter. The standard requirement is usually at + 2 C, but in the pure high temperature test chamber above 200 c, it can be used at the temperature of 2% degrees Celsius.
(4)The temperature fluctuation-- is also called the temperature stability. After controlling the temperature stability, the difference between the maximum and the lowest temperature of any point in the working space can be obtained at any given interval of time. What needs special attention is that its "workspace" is not a "studio". It is a space for the studio to remove the 1/10 from each side of the chamber wall. This index can be used to assess the control technology of products.
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