Humidity ChamberThe system it works on consists of six new systems: humidity system, sensor system, refrigeration system, etc. Mainly providing complex high and low temperature alternating, constant temperature and other testing conditions and environments for product research and development, production and inspection, suitable for industries such as home appliances, scientific research, rubber, etc. Therefore, the normal operation of the six major systems is indispensable. Below is a preliminary description of the working principles and processes of several main systems.

1) Heating system: The heating system of the constant temperature and humidity test chamber is relatively simple compared to the cooling system. The heating system of the test box has a relatively high power, and a heater is also installed on the bottom plate of the test box.

2) Refrigeration system: The refrigeration system is one of the key components of the comprehensive test chamber. The refrigeration system consists of two parts, namely the high temperature part and the low temperature part, each of which is a faulty refrigeration system.

3) Control system: The control system is the core of the comprehensive test box, which determines important indicators such as the heating rate and accuracy of the test box. Currently, most controllers use PID control.

4) Humidity system: The temperature system is divided into two subsystems: humidification and dehumidification. The humidification method generally adopts steam humidification method, which directly injects low-pressure steam into the test space for humidification. There are two types of dehumidification methods: mechanical refrigeration dehumidification and dry dehumidification.

5) Air circulation system: An air circulation system generally consists of a centrifugal fan and a motor that drives its operation. It provides air circulation inside the constant temperature and humidity test chamber.

6) Sensor system: The sensors in the test chamber are mainly temperature and humidity sensors. The most commonly used temperature sensors are platinum batteries and thermocouples. There are two methods for measuring humidity: dry wet bulb thermometer method and solid-state electronic sensor direct measurement method.

　　Humidity ChamberThe functions of the six major systems all play a crucial role in the normal operation of the test chamber. The above introduction can effectively teach everyone how to use these functions.