Electrolytic sensor for measuring the content of gas in a fluid
US5344545A · kind A · utility
35Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1992 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Jan 7, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00853
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas sensor e.g. an oxygen sensor for testing body fluids, has a laminated structure with a cavity for holding a gel or liquid electrolyte in contact with a cathode and anodes formed by deposition on layers of the structure. The cathode contacts the electrolyte cavity only at a small-volume reaction region defined e.g. in a groove which communicates with a larger, laminar volume of the cavity formed e.g. by a spacer layer having through apertures. A small gas-permeable window opposes the cathode at the reaction region. The laminar construction can be mass-produced. The enlarged electrolyte reservoir lengthens the sensor life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.