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- Title
Fiber-optic displacement sensor using a multimode bundle fiber.
- Authors
Yasin, Moh.; Harun, S. W.; Karyono, Kusminarto; Ahmad, H.
- Abstract
A simple fiber optic displacement sensor based on intensity modulation technique is demonstrated using a bundle multimode plastic fiber as a probe. The sensor consists of a light source, a probe, and photodiode detector. The sensor is capable of measuring displacements of mirror ranging from 0.05 to 2.2 mm using a red light source of wavelength 632.8 nm with maximum output power of 1 mW. The sensitivity of the device is found to be 168.8 mV/mm over 0.05–0.35 mm range and -29.8 mV/mm over 1.05–2.2 mm range. The sensor is highly sensitive at the front slope and very useful for close distance target. The simplicity of the design, high degree of sensitivity, dynamic range and the low cost of the fabrication make it suitable for applications in industries as position control and micro displacement measurement in the hazardous region. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 661–663, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23147
- Subjects
OPTICAL fiber detectors; OPTICAL detectors; LIGHT sources; ELECTRONIC probes; PHOTODIODES
- Publication
Microwave & Optical Technology Letters, 2008, Vol 50, Issue 3, p661
- ISSN
0895-2477
- Publication type
Article
- DOI
10.1002/mop.23147