Flame detectors
US9928727B2 · kind B2 · utility
1Cited by
36References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2016 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Jul 26, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B17/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flame detector includes a UV sensor sensitive to solar UV radiation and a secondary sensor sensitive to non-UV radiation. A controller is operatively connected to the UV sensor and the secondary sensor to: signal an alarm in response to receiving input from the UV sensor indicative of a strong UV source and input from the secondary sensor indicative of a weak non-UV radiation source; and suppress an alarm in response to receiving a signal from the UV sensor indicative of a strong UV source and a signal from the secondary sensor indicative of a strong non-UV radiation source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.