No sensor and sensor systems
US9217721B2 · kind B2 · utility
0Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2013 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Feb 27, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Some aspects of the present disclosure relate to a sensor design that exploits the different majority carriers (holes/electrons) in WO3 and Cr2O3 to build sensitivity and selectivity to NO at ppb levels, while discriminating against CO at concentrations a thousand-fold higher (ppm) and spread over a considerable range (0-20 ppm). Practical application of this sensor system for detecting NO in human breath is demonstrated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.