Loss compensation using digital-signal processing in fiber-optic fluorescence sensors
US6207961A · kind A · utility
1Cited by
4References
21Claims
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Key dates
| Filing date | Oct 15, 1997 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Oct 15, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7786
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical fiber fluorescence sensor system capable of compensating fiber bending loss is provided. The system uses a modulated light-emitting diode and digital-signal processing chips to enhance the measurement of fluorescence signals. A fiber-optic oxygen sensor system suitable for measuring oxygen levels in gas and in aqueous media is provided. The system alleviates fiber bending loss. Detection of the signal-to-noise ratio of the system which exceeds 30 dB is done by using inexpensive components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.