Current Position：Home > Company > Industry News >

Why does the constant temperature and humidity test chamber

type size：T|T

　Article From：www.hongyu-group.netEDIT：hongyuTIME：2018-09-12 17:21

1. Differences in laboratory experiment objectives of the constant temperature and humidity test chamber: if the constant temperature and humidity test chamber contains sufficient experimental samples affecting all internal heat convection, it is inevitable to affect the uniformity of internal temperature to a certain extent, that is, temperature uniformity.For example, if the LED lighting product is placed, the product itself will glow and heat, which will become the heat load, then the temperature uniformity will be greatly affected.

2. Doubts on planning make it difficult for the internal structure and space planning of constant temperature and humidity test boxes to reach uniform symmetrical structure, while the asymmetric structure will inevitably cause the error of internal temperature uniformity.This level is primarily reflected in sheet metal planning and sheet metal processing, for example, the planning of air ducts, the placement of heat pipes, and the size of the fan power.This will affect the temperature uniformity in the box.

4. Because the inner wall of the constant temperature and humidity test box is constructed differently, the temperature forming the inner wall of the test box will also be uneven, which will affect the convection in the operating room, and the uniformity of the internal temperature of the test box will cause errors.

5. The sealing of the box body and door of the constant temperature and humidity test box is not strict, for example, the non-customized joint of the sealing strip, the leakage of the door, etc., which then affects the temperature uniformity of the working space.

6. If the size of the experimental target is too large, or the orientation or method of the experimental target placed in the operating room of the constant temperature and humidity test box is not appropriate, the air convection in the laboratory will be blocked, and a large error of temperature uniformity will also occur.For example, placing the experimental product next to the air duct would seriously affect the circulation of the wind, and of course the temperature uniformity would be greatly affected.