| 摘要 |
PURPOSE:To obtain a constant humidity device for reducing variability of humidity in a storage chamber. CONSTITUTION:A storage chamber 40 is humidified by a humidifier 13. A cold air dehumidified by a cooler 22 is circulated through the storage chamber 40. An exhaust vent 31 is opened and closed by a damper 32 and supply of cold air to the storage chamber 40 is controlled. Humidity in the storage chamber 40 is detected by a humidity sensor 53. The damper 32 and the humidifier 13 are regulated based on output of the storage sensor 53. Humidity in the storage chamber 40 is compared with a set value and divergence of the damper 32 is adjusted according to the difference between the humidity and the set value. |
