Fiber optic salinity sensor using beam-through technique

Rahman, H.A. and Sulaiman Wadi Harun and Moh. Yasin and Harith Ahmad (2013) Fiber optic salinity sensor using beam-through technique. Optik, 124 (8). pp. 679-681.

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Abstract

A fiber optic displacement sensor is proposed to sense salinity based on different concentration of sodium chloride (NaCl) in de-ionized water using the beam-through technique. The performance of a 594 nm and 633 nm He-Ne laser as the light source are compared. For a concentration change of sodium chloride from 0 to 12 in de-ionized water, the output voltage increase linearly and the sensitivity is dependent on the displacement position of the receiving fiber from the quartz cell containing the sodium chloride solutions. Measurements taken at higher displacement positions contribute to lower sensitivity with the highest sensitivity of 0.0237 mV/ and 0.0412 mV/ occurring at the 0 mm displacement position for the 594 nm and 633 nm He-Ne lasers, respectively. Furthermore, a better limit of detection of 1.44 is achieved when the 633 nm He-Ne laser is used compared to the 1.28 limit of detection achieved by using the 594 nm He-Ne laser. The main novelty of this sensor is that it is contactless and non-destructive which are attractive features for applications involving delicate and hazardous processes. © 2012 Elsevier GmbH.

Item Type: Article
Additional Information: cited By 10
Uncontrolled Keywords: Beam-through techniques; Concentration change; Fiber optic displacement sensor; Limit of detection; Salinity fiber sensors; Sodium chloride (NaCl); Sodium chloride in de-ionized waters; Sodium chloride solution, Fiber optic sensors; Fiber optics; Ionization; Light sources; Quartz; Salinity measurement; Sensors, Sodium chloride
Divisions: Artikel Ilmiah > SCOPUS INDEXED JOURNAL
Creators:
CreatorsNIM
Rahman, H.A.UNSPECIFIED
Sulaiman Wadi HarunUNSPECIFIED
Moh. YasinUNSPECIFIED
Harith AhmadUNSPECIFIED
Depositing User: Ika Rudianto
Last Modified: 31 Dec 2020 14:24
URI: http://repository.unair.ac.id/id/eprint/102434
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