Conductive polymer selective species sensor
US5145645A · kind A · utility
64Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1991 |
| Grant date | Sep 8, 1992 |
| Priority date | — |
| Expiry date | Jun 3, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/902
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A selective chemical species detector including a conductive polymer based sensing element having a detectable characteristic, for example, the polymer resistivity, permanently altered on exposure to a first chemical species and not permanently altered on exposure to a second chemical species. The detector then determines a permanent change in the detected characteristic and indicates the presence of a chemical species on detection of a such a permanent characteristic change. Also disclosed is a method of fabricating such a sensing element to achieve the desired selectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.