Fiber Optic Displacement Sensor for Temperature Measurement

Rahman, Husna Abdul and Harun, Sulaiman Wadi and Saidin, Norazlina and Yasin, Moh and Ahmad, Harith (2012) Fiber Optic Displacement Sensor for Temperature Measurement. IEEE Sensors Journal, 12 (5). pp. 1361-1364. ISSN 1530-437X, DOI

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A simple design of a temperature sensor is proposed and demonstrated using a fiber optic displacement sensor based on an intensity modulation technique. The proposed sensor uses a plastic optical fiber (POF)-based coupler as a probe in conjunction with a flat surface aluminum rod as a target. The aluminum rod is placed within the linear range of the sensor's displacement curve, which is from 0 to 1400 μm. The sensor is capable of measuring the temperature of an aluminum rod ranging from 42 °C to 90 °C with a measured sensitivity of 0.0044 mV/°C, with a linearity of more than 98% and a resolution of 2.4°C. The proposed sensor also shows a high degree of stability and good repeatability. The simplicity of design, accuracy, flexible dynamic range, and the low cost of fabrication are favorable attributes of the sensor and beneficial for real-field applications.

Item Type: Article
Funders: University of Malaya: PPP Grant PV033/2011A, HIR-MOHE Grant D0000009-16001
Uncontrolled Keywords: Fiber optic; Fiber optic displacement sensor; Temperature fiber sensor
Subjects: 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: 04 Jan 2019 08:54
Last Modified: 04 Jan 2019 08:54

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