| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a corrosion potential sensor capable of accurately measuring a corrosion potential of a structure member. <P>SOLUTION: A corrosion potential sensor 1 has a trapping electrode member 11. A cover 2 is attached to one end portion of an insulating body 3, and one end portion of an external sleeve 13 is attached on an outer surface of the insulating body 3. An internal sleeve 6 blocks the insulating body 3, and one end portion of a sensor body 5 is attached to the other end portion of the external sleeve 13. A silver/silver chloride electrode 7 is disposed in the insulating body 3 and connected to a lead wire 8. The trapping electrode member 11 has a disc-shaped electrode portion 10, supporting rods 12 and 13, and an annular member 14 which are made of the same material as that of recirculation system piping 18. The electrode portion 10 is disposed so as to face the cover 2 at a predetermined interval, and attached to each supporting rod 12 joined on the outer surface of the external sleeve 4. Each supporting rod 12, 13 and each annular member 14 are separated from the outer surface of the insulating body 3, and exist inside a measuring seat 19 on which the corrosion potential sensor 1 is installed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
