| 摘要 |
<p>PURPOSE:To perform energy conservation under the control of humidity of an environmental tester having a humidifier. CONSTITUTION:An air conditioning room 2 has a blower 3, a heater 4, an evaporator 5 of a refrigerator, and a humidifier 6. An inlet of a testing chamber 1 has a temperature sensor 7 and a humidity sensor 8. Part of the air in the chamber 1 is passed through a dehumidifier 12 having a rotor 121 to be driven by a motor 122 to form a bypass dehumidifying line. Detection signals of the temperature and humidity sensors are introduced to a temperature and humidity regulator 14, which generate heating and humidifying outputs to control temperature and humidity of the air to be fed to the chamber 1. A control factor of a humidifying amount in the regulator 14 is oscillated to a speed controller 15 for controlling a rotating speed of the motor 122. Thus, necessary dehumidifying amount can be obtained without altering a structure of the dehumidifier, and humidifying energy can be reduced.</p> |
