Monitoring of Moisture in Transformer Oil Using Optical Fiber as Sensor | Zendy

Shakuntala Laskar | Zendy; Sandip Bordoloi | Zendy

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Monitoring of Moisture in Transformer Oil Using Optical Fiber as Sensor

Author(s) -

Shakuntala Laskar,

Sandip Bordoloi

Publication year - 2013

Publication title -

journal of photonics

Language(s) - English

Resource type - Journals

eISSN - 2356-7562

pISSN - 2314-6451

DOI - 10.1155/2013/528478

Subject(s) - optical fiber , microcontroller , fiber optic sensor , multi mode optical fiber , materials science , optical time domain reflectometer , transformer , transformer oil , temperature measurement , detector , optoelectronics , optics , electrical engineering , computer science , fiber optic splitter , telecommunications , computer hardware , engineering , voltage , physics , quantum mechanics

This paper describes an optical fiber sensor and temperature sensor-based instrumentation system to measure the moisture content in transformer oil. The sensor system consists of (i) Diode Laser Source, (ii) a bare and bent multimode fiber as sensor probe, (iii) an LDR as detector, (iv) LM35-based temperature sensor, and (v) microcontroller system having a trained ANN for processing and calibration. The bare and bent optical fiber sensor and the temperature sensor LM35 are used to provide the measures of refractive index (RI) and temperature of a transformer oil sample. An ATmega32-microcontroller-based system with trained ANN algorithm has been developed to determine the moisture content of the transformer oil sample by sampling the readings of the bare bent optical fiber sensor and the temperature sensor

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