Correct installation method of gauze for constant temperature and humidity test chamber

It is very simple to say how to properly install the sand cloth in the constant temperature and humidity test chamber, but it is easy to have a great impact on the experimental statistics if you are not careful. Not long ago, there was always a customer who said that there was no ambient humidity in the test box, and the double eight five experiment was set, but no internal moisture was seen. Later, according to the supervision and inspection, it was found that the sand cloth on the temperature sensor was not properly installed, causing abnormal statistical data. Lin Pin explained in detail the proper installation method of the sand cloth for the constant temperature and humidity test chamber.

In the constant temperature and humidity test chamber, the PT100 with high precision is generally used as the temperature and temperature sensor, and the two sensor technologies are generally put in order. The difference is that the temperature sensor is wrapped with a wet sand cloth (also known as dry bulb temperature) on the upper side, and a stainless steel water tank on the lower side for the sand cloth to supplement water and moisture.

The dry bulb temperature sand cloth (dry bulb temperature paper) used in the constant temperature and humidity test chamber has necessary provisions, which can be replaced by wet tissue paper, but not all sand cloth can be replaced. Since the reading of air humidity is based on the difference between temperature and humidity, it is also strictly related to the local atmospheric pressure bubble and wind at that time. The range of wet bulb temperature is related to the water flow absorbed by the sand cloth and the surface volatilization. This is immediately closely related to the quality of the emery cloth, so the climate requires that the dry bulb temperature emery cloth must be a special "dry bulb temperature emery cloth" woven from linen. Otherwise, it is impossible to ensure the accuracy of the range of the wet bulb thermometer, that is, the appropriate ambient humidity. The placement of another dry bulb temperature sand cloth is also clearly stipulated. The length of the sand cloth is 100mm, which is closely related to the controller camera. The camera is 25-30mm away from the environmental humidity cup, and the sand cloth penetrates into the cup, so as to ensure the accuracy of equipment operation and environmental humidity.

Not only gauze, but also many details need to be handled scientifically. The test needs to be completed with a strict attitude, and each step should be standardized. The correct installation method of gauze in the constant temperature and humidity test box discussed here is a small detail. More questions about the operation of constant temperature and humidity test chambers, high and low temperature test chambers, high and low temperature humidity and heat alternating test chambers can be consulted at any time.