Interrogator for a plurality of sensor fiber optic gratings including a driver/modulator
US8330096B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2011 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Dec 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0204
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interrogator for a plurality of sensor fiber optic gratings. The interrogator includes a broadband optical source; at least one beam splitter directing output of the optical source to the sensor fiber optic gratings; at least one linear filter for converting changes in peak reflection wavelength to changes in intensity; at least one optical receiver; and at least one amplifier associated with each optical receiver. The interrogator also includes, alternatively, a driver/modulator for the optical source providing on/off pulses; an analog integrator following the at least one amplifier; or a mechanism compensating for masking of one sensor fiber optic grating by another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.