| 摘要 |
PROBLEM TO BE SOLVED: To provide an environmental testing apparatus in which, even if adhesion between a dew condensation sensor and an object to be tested is slightly deteriorated, a change of a dew condensation amount on the surface of a tested object is hardly caused before and after the deterioration of adhesion, that is, the dew condensation state of the surface of the tested object can be stabilized. SOLUTION: The environmental testing apparatus 100 has a controller 5. The controller 5 lowers the set value of the amount of the dew condensation of a dew condensation sensor 9 to a predetermined set value when the change rate of the measured temperature difference between a first temperature sensor 92 for detecting the temperature of the sensor unit of the dew condensation sensor 9 and a second temperature sensor 13 embedded in a cooling/heating plate 4 reaches a predetermined value. COPYRIGHT: (C)2010,JPO&INPIT
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