| 摘要 |
PROBLEM TO BE SOLVED: To provide a corrosion sensor capable measuring corrosive environment of the atmosphere with high accuracy.SOLUTION: The corrosion sensor includes: an anode section 5 with a plurality of communication holes formed therein; a cathode section 6 arranged to face the anode section 5 and composed of a material nobler than the material of the anode section 5; and a water-absorbing sheet 7 arranged between the anode section 5 and the cathode section 6 and composed of an insulator and absorbing a moisture W from outside. The corrosion sensor further includes: an electrode section 1 the anode-side terminal of which is arranged in the anode section 5 and the cathode-side terminal of which is arranged in cathode section 6; and a measurement section 3 which is connected to the anode section side terminal and the cathode side terminal and which measures the current flowing when the moisture W is absorbed by the water-absorbing sheet and a corrosion circuit T is formed. The plurality of communication holes are communicated from the outside up to the water-absorbing sheet 7, houses the moisture W of the outside and supplies the moisture W to the water-absorbing sheet 7.SELECTED DRAWING: Figure 1 |
