Resonant cavity sensor having multiple input optical signals at different angles
US8730484B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 30, 2011 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Feb 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H9/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of environmental stimulus sensors comprising multiple sources and detectors for interrogating one or more optically resonant cavities that are responsive to one or more environmental stimuli are disclosed. Such sensors have, among other advantages, improved immunity to source and/or detector noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.