What are the reasons for the uneven temperature and humidity in the constant temperature and humidit

1. The difference between the experimental targets in the Constant Temperature and Humidity Test Chamber: If enough experimental samples are placed in the constant temperature and humidity test chamber to affect the overall internal thermal convection, it will inevitably affects the indoor temperature to a certain extent The uniformity, that is, the temperature uniformity. For example, when LED lighting products are placed, the products themselves emit light and generate heat, which becomes a heat load that has a major impact on temperature uniformity.

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2. Planning problems led to the internal structure and space planning of the Constant Temperature and Humidity Test Chamber It is difficult to achieve a uniform symmetrical structure, and an asymmetrical structure inevitably leads to deviations in internal temperature uniformity. This level is mainly reflected in sheet metal construction and sheet metal processing, for example the design of the air duct, the location of the heating pipe and the size of the fan output. These impair the temperature uniformity in the cabinet. uabTextile Testing Instruments, Testing Equipment Manufacturer

uabTextile Testing Instruments, Testing Equipment Manufacturer

3. Because of the heat transfer coefficient of the front, rear, left and right sides of the working space are different, there are tapped holes, detection holes, test holes, etc., causing heat dissipation and heat transfer in some parts, making the temperature of the box body uneven and dann the constant temperature and humidity makes test chamber wall radiation convection heat transfer uneven, affecting temperature uniformity. uabTextile Testing Instruments, Testing Equipment Manufacturer

uabTextile Testing Instruments, Testing Equipment Manufacturer

4、Due to the different structure of the inner wall of the Constant Temperature and Humidity Test Chamber, the temperature of the inner wall of the test box is also uneven, which makes the Heat convection when working affects space and causes errors in internal temperature uniformity. uabTextile Testing Instruments, Testing Equipment Manufacturer

uabTextile Testing Instruments, Testing Equipment Manufacturer

5. The sealing of the box and the door of the test box forconstant temperature and humidity is not strict, such as: sealing strips. Non-custom ones have seams, door leaks, etc. that affect the temperature uniformity of the work space. uabTextile Testing Instruments, Testing Equipment Manufacturer

uabTextile Testing Instruments, Testing Equipment Manufacturer

6. If the volume of the test object is too large, or the test object is placed in the work space constant temperature and humidity test chamber space, the orientation or method is not appropriate, the air convection inside will be blocked, and there will also be a large error in temperature uniformity . For example, if you place the test product next to the air duct, it will greatly affect the circulation of the wind, and of course, the temperature uniformity will be greatly affected. uabTextile Testing Instruments, Testing Equipment Manufacturer