What items can replace the constant temperature and humidity test chamber wet ball gauze?

Constant temperature and humidity test chamber suitable for electronic, electrical, communications, instrumentation, vehicles, plastic products, metal, food, chemical, building materials, medical, aerospace and other products for quality testing purposes. Wet ball gauze as constant temperature and humidity test chamber important sensing components, is essential, then, what items can replace the constant temperature and humidity test chamber wet ball gauze ?

Wet ball gauze (wet bulb) have certain requirements, you can use advanced wet tissue instead it, but not any gauze can be substituted, because the relative humidity reading is based on the difference between temperature and humidity, strictly speaking also related with the local Atmosphere Pressure, wind speed.

Wet bulb temperature indication value is related with inhalation of water and the surface evaporation . These are directly closely related with the quality of gauze, so the weather provides that the wet ball gauze must be flax woven into a special "wet ball gauze." Otherwise it is difficult to ensure constant temperature and humidity test chamber wet bulb thermometer showed the correctness of the value, that is, the correctness of humidity. In addition, the placement of wet ball gauze is also clearly defined, gauze length: 100mm, tightly wrapped sensor probe, the probe from the humidity cup 25-30mm, gauze immersed in the cup, so as to ensure the correctness of control equipment and humidity accuracy.