| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a gas dryer having a simple structure, capable of judging an exchange time of adsorbents accurately for a long period of time and stably. SOLUTION: This gas dryer 1 is equipped with an apparatus main body 13, an adsorber 17 which is laid in a gas flow channel 33 so as to adsorb water in a gas and is supported by a spring 64, an eddy current displacement sensor 10 which is opposed through an insulating sheet 72 to a detected element 69 following the displacement of the adsorber 17, arranged outside the gas flow channel 33 and detects the displacement amount of the adsorber 17, produced according to the adsorbed water amount and an annunciator 49 which receives a signal from the eddy current displacement sensor 10 having detected the displacement amount of the adsorber 17 and informs the adsorption water amount in the adsorber 17 to the outside.</p> |
