Materials and sensors for detecting gaseous agents
US9678030B2 · kind B2 · utility
12Cited by
2References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | May 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0036
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor for detecting gaseous agents has a transducer, which includes an electrical resonant circuit that forms an antenna. The sensor further includes a sensing material that is disposed on at least a portion of the transducer. The sensing material is configured to simultaneously exhibit a capacitance response and a resistance response in the presence of a gaseous agent. The sensor may be reversible, battery free, and may require no electrical contact with a sensor reader.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.