Rahman, H.A. and Sulaiman Wadi Harun and Moh. Yasin and Harith Ahmad (2011) Non-contact refractive index measurement based on fiber optic beam-through technique. Optoelectronics and Advanced Materials, Rapid Communications, 5 (10). pp. 1035-1038.

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Abstract

A simple refractive index sensor for various concentrations of sodium chloride (NaCl) in de-ionized water is proposed and demonstrated. The beam-through technique is used to obtain output voltage of liquids with known refractive indices, namely methanol, de-ionized water, acetone and ethanol. Based on the output voltage of these liquids, the sensor characteristic curve is determined and the refractive indices of 2 to 12 sodium chloride concentrations are obtained. A sensitivity and detection limit of 23.07 mV/refractive index unit (RIU) and 2.28 � 10-3 RIU have been derived from measurements, respectively, with a linearity of more than 97 . The fiber optic sensor is a promising alternative to other well-established methods for the measurement of liquid refractive index due to its simplicity of design, linearity, non-contact sensing, ruggedness and low fabrication cost.

Item Type:	Article
Additional Information:	cited By 2
Uncontrolled Keywords:	Acetone; Fiber optic sensors; Fiber optics; Fibers; Ionization; Liquids; Refractometers; Sodium chloride, Beam-through techniques; Chloride concentrations; Fiber optic displacement sensor; Liquid refractive index; Refractive index measurement; Refractive index sensor; Sensor characteristics; Sodium chloride in de-ionized waters, Refractive index
Divisions:	Artikel Ilmiah > SCOPUS INDEXED JOURNAL
Creators:	Creators NIM Rahman, H.A. UNSPECIFIED Sulaiman Wadi Harun UNSPECIFIED Moh. Yasin UNSPECIFIED Harith Ahmad UNSPECIFIED
Depositing User:	Ika Rudianto
Last Modified:	31 Dec 2020 14:24
URI:	http://repository.unair.ac.id/id/eprint/102454
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