The performance of a fiber optic displacement sensor for different types of probes and targets

Yasin, Moh and Harun, Sulaiman Wadi and Abdul-Rashid, Hairul Azhar and Kusminarto, - and Karyono, - and Ahmad, Harith (2013) The performance of a fiber optic displacement sensor for different types of probes and targets. Laser Physics Letters, 5 (1). pp. 55-58. ISSN 1612-2011, DOI

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A simple fiber optic displacement sensor is presented using a in multimode plastic bundled fiber and the intensity modulation technique. The performance of the sensor is compared for different types of probes and targets. The probe with the largest receiving core diameter demonstrates the highest linearity range, and increasing the number of receiving cores increases the sensitivity of the sensor. With a stainless steel target and the concentric bundled fiber with 16 receiving fibers as a probe, the sensitivity of the sensor is found to be 0.0220 mV/μm over 150 to 550 μm range and - 0.0061 mV/μm over 1100 to 2000 μm range. The target with a higher reflectivity shows a higher sensitivity. The linearity range for the front slope is almost similar for all targets tested. However, for the back slope, lower reflectivity objects have a relatively higher linearity range with the highest range of 1600 μm being obtained using plastic and aluminum targets. The simplicity of the design, high degree of sensitivity, dynamic range, non-contact measurement and low cost of the fabrication make it suitable for applications in industries for position control and micro displacement measurement in the hazardous regions. A graph is presented.

Item Type: Article
Uncontrolled Keywords: Bundled 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 06:53
Last Modified: 27 Aug 2019 06:44

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