Universiti Teknologi Malaysia Institutional Repository

Fiber optic radial displacement sensor-based a beam-through technique

Abdullah, Mundzir and Bidin, Noriah and Krishnan, Ganesan and Ahmad, Mohd. Fakaruddin Sidi and Yasin, Moh (2016) Fiber optic radial displacement sensor-based a beam-through technique. IEEE Sensors Journal, 16 (2). pp. 306-311. ISSN 1530-437X

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A fiber optics displacement sensor based on a beam-through technique has wide application due its simplicity, high accuracy, and immune to electromagnetic interference. The fingerprint for such a sensor system is established through the longitudinal displacement. However, it is known that the highest intensity modulation is normally fall at zero distance for the beam-through technique. Thus, it is valuable to take advantage at such optimization position. A novel method is introduced by conducting a fiber optic sensor-based radial displacement. Three types of fiber optic, including 1000, 500, and 265 μm core diameters, were employed to optimize the probe. A Gaussian profile is identified to be the fingerprint for the radial displacement sensor, which entirely different with a linear one for longitudinal displacement. The radial displacement fiber optic sensor is a core diameter-dependent. The bandwidth at full width half maximum tends to be broader with the core diameter of a fiber optic. Higher response of the sensor is achieved at the negative side of the Gaussian curve comparable with positive part. It is realized that the sensitivity of the radial sensor is 7 times higher correspond to core diameter and 3 times better performance than the conventional displacement sensor.

Item Type:Article
Uncontrolled Keywords:Electromagnetic pulse, Fiber optic sensors, Fibers, Gaussian beams, Beam-through techniques, Displacement sensor, Full width half maximum, Gaussian profiles, Intensity modulations, Longitudinal displacements, Radial displacements, Transmission fibers, Fiber optics
Subjects:Q Science > QC Physics
ID Code:73971
Deposited By: Fahmi Moksen
Deposited On:23 Nov 2017 04:17
Last Modified:23 Nov 2017 04:17

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