| 发明名称 | Corrosion detection sensor device | ||
| 摘要 | A sensor device includes first and second electrodes, a coating film and a functional element. The first electrode includes a first metallic material in which either a first passivation film forms on a surface thereof or the first passivation film present on the surface thereof is lost, in association with changes in the pH of a measurement site. The second electrode includes a second metallic material different from the first metallic material, and is spaced apart from the first electrode. The coating film includes a third metallic material different from the first and second metallic materials. The coating film covers at least the first or second electrode. The functional element is configured to measure a difference in electric potential between the first and second electrodes that changes depending on presence or absence of each of the first passivation film and the coating film in association with the changes in pH. | ||
| 申请公布号 | US9297741(B2) | 申请公布日期 | 2016.03.29 |
| 申请号 | US201514596850 | 申请日期 | 2015.01.14 |
| 申请人 | Seiko Epson Corporation | 发明人 | Kato Juri;Miyazawa Takao |
| 分类号 | G01N17/02;G01N33/20;G01N27/416;G01N27/12;G01N31/22;G01N33/38 | 主分类号 | G01N17/02 |
| 代理机构 | Global IP Counselors, LLP | 代理人 | Global IP Counselors, LLP |
| 主权项 | 1. A sensor device comprising: a first electrode including a first metallic material, the first metallic material being a metallic material in which either a first passivation film forms on a surface thereof or the first passivation film present on the surface thereof is lost, in association with changes in the pH of a measurement site; a second electrode including a second metallic material different from the first metallic material, the second electrode being spaced apart from the first electrode, the first electrode and the second electrode being provided on the same plane; a coating film including a third metallic material different from the first metallic material and from the second metallic material, the coating film covering at least one of the first electrode and the second electrode; and a functional element configured to measure a difference in electric potential between the first electrode and the second electrode that changes depending on presence or absence of each of the first passivation film and the coating film in association with the changes in pH. | ||
| 地址 | Tokyo JP | ||