Fiber-optic displacement sensor using a multimode bundle fiber

Yasin, Moh and Harun, Sulaiman Wadi and Karyono, Kusminarto and Ahmad, Harith (2008) Fiber-optic displacement sensor using a multimode bundle fiber. Microwave and Optical Technology Letters, 50 (3). pp. 661-663. ISSN 0895-2477, DOI

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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.

Item Type: Article
Uncontrolled Keywords: Bundle fiber; Displacement sensor; Fiber-optic sensor
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 17 Oct 2018 07:23
Last Modified: 27 Aug 2019 06:46

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