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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Casalicchio, M.L. Olivero, M. Perrone, G. Vallan, A. |
| Copyright Year | 2011 |
| Description | Author affiliation: Dipartimento di Elettronica, Politecnico di Torino, Corso Duca degli Abruzzi, 24, I-10129 Torino - Italy (Casalicchio, M.L.; Olivero, M.; Perrone, G.; Vallan, A.) |
| Abstract | The paper describes the use of a dual-wavelength technique for compensating power fluctuations in intensity-based plastic optical fiber sensors for displacement measurements. The sensor consists of a fiber that collects the reflected light from a target and retrieves its distance from the signal attenuation. Besides a measurement signal at 450 nm that travels back and forth the displacement region and is attenuated according to the target position, a compensation signal at 650 nm propagates along the fiber and is back-reflected at the fiber tip by a dichroic filter. The compensation signal undergoes power fluctuations due to environmental stress of the fiber and is therefore used as a reference to correct the measurement signal. A demonstrator, which includes a sensor, the acquisition circuitry and signal processing software, was built and tested in laboratory and proved that the measurement signal is capable of monitoring displacements in the range (0 ÷ 10) mm even at low power, while the reference signal is not influenced by the position of the reflecting target and can therefore be used as reliable reference. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 584298 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424479337 |
| ISSN | 10915281 |
| e-ISBN | 9781424479351 |
| DOI | 10.1109/IMTC.2011.5944187 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-05-10 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Optical sensors Optical fibers Adaptive optics Temperature sensors Mirrors Monitoring |
| Content Type | Text |
| Resource Type | Article |
| Subject | Instrumentation Electrical and Electronic Engineering |
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