Optical devices for fluid sensing and methods therefor
US9851295B2 · kind B2 · utility
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71References
15Claims
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Key dates
| Filing date | Nov 20, 2015 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Nov 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0627
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical spectral sensing device for determining at least one property of a fluid. The device has an elongated porous body, a first end and a second end, a solid-state optical emitter at the first end of the body oriented to emit radiation toward the second end of the body, and a solid-state optical detector at the second end of the body oriented to detect radiation emitted by the optical emitter and to output a signal responsive to absorption of radiation. The device is configured to determine depth of a fluid based on the signal output by the optical detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.