The working principle of the heating system of the high and low temperature test box: the heating system is composed of air electric heating wire, heating control system, air circulation, etc. The heating system generally uses nickel-chromium alloy electric heating wire for direct heating. When the equipment is working, the circulation fan makes the air in the box convection , Take away the heat generated by the heating wire, so as to achieve the effect of heating the air in the box; the control system is adjusted by a microcomputer to control the conduction time of the heating wire, and the heating heat and the loss of heat are dynamically balanced to achieve the purpose of precise temperature control.
The working principle of the humidification system of the high and low temperature test chamber: the humidification system is composed of an electric heating tube, a humidification control system, an air circulation system, a water supply system, a drainage system, etc. The humidification system is a direct humidification method of the electric heating tube. When the equipment is working, the circulation fan makes the air in the box Convection is generated to take away the steam generated by the humidification tube, and the air humidification effect is achieved through the air circulation; the control system is adjusted by a microcomputer to control the conduction time of the humidification tube, the amount of humidified steam and the amount of steam lost (mainly the evaporator The amount of dehumidified steam and the amount of condensed steam) achieve dynamic balance and achieve the purpose of precise humidity control. Brief introduction of heating and humidifying system of high and low temperature test chamber
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