pH sensor
US6875328B2 · kind B2 · utility
3Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2001 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Sep 6, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An inexpensive, high-performance pH sensor measure the surface of a solid substance in a simple manner, comprising an ion sensing part 2 which responds to pH, a reference electrode 3, a gel-form ion permeable substance 10, which has a predetermined pH value and covers the ion sensing part 2 and reference electrode 3, and a cover member 9, which houses the ion permeable substance 10 and has an opening 9a formed at a position near the abovementioned ion sensing part 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.