Ultraviolet flame sensor with dynamic excitation voltage generation
US10739192B1 · kind B1 · utility
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26References
18Claims
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Key dates
| Filing date | Apr 2, 2019 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Apr 2, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/444
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A controller unit for controlling an ultraviolet (UV) sensor may be excited by an excitation voltage that enables the UV sensor to detect incoming UV light. The UV sensor may provide UV detection events that may be related to the intensity of the incoming UV light. The control unit may include an excitation voltage generator, an event detector, and a controller configured to cause the excitation voltage generator to produce an excitation voltage for a cumulative excitation time that is less than 50% of the time, which may significantly increase the operational lifetime and/or reliability of a UV sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.