| 摘要 |
PROBLEM TO BE SOLVED: To provide a sensor device capable of measuring a change in the state of a measurement target during a period until corrosion starts after reinforcing bars are constructed and utilizing the obtained information for a scheduled maintenance of a concrete structure.SOLUTION: A sensor device 1 of the present invention includes: a first electrode 3 constituted by a porous body having continuous holes where adjacent holes are communicated with each other; a second electrode 4 provided apart from the first electrode 3; and a function element 51 having a function to measure an electric potential difference between the first electrode 3 and the second electrode 4. The sensor device is constituted so as to be capable of measuring the state of a measurement target portion on the basis of the electric potential difference measured by the function element 51. |
