Detection and analysis of optical sensing probes
US7643145B2 · kind B2 · utility
0Cited by
5References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 27, 2005 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Apr 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/6408
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to the detection of optical sensors by means of measurement of information relative to the signal intensity and signal modulation phase shift. The proposed method employs the use of CMOS and/or CCD imager and illuminations with different wavelengths. The system is able realize a contactless measurement of a phase shift to curse on a gas concentration an distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.