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Proceedings Paper

Optical Fibre Sensor For Measuring pH In Physiological Range
Author(s): Witold Golunski; Ryszard Hypszer; Jerzy Plucinski
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Paper Abstract

The principle of fibre optic pH sensor operation is given in this paper. PH measurement in 7.0-7.5 range is based on changing of optical property of a indicator. The indicator is sensitive to the hydrogen ion concentration in the water solution. Microspheres of the polymer XAD-2 (a styrene-divinylbenzene copolymer) containing bound phenol red were used as a indicator. Such prepared indicator was inserted in optrode. The optrode was connected with transmitter and receiver by a bundle of glass fibres (multicomponent glass). Transmitter was done by using green LED while receiver construction was based on pin photodiode.

Paper Details

Date Published: 30 January 1990
PDF: 3 pages
Proc. SPIE 1085, Optical Fibres and Their Applications V, (30 January 1990); doi: 10.1117/12.952991
Show Author Affiliations
Witold Golunski, Technical University of Gdansk (Poland)
Ryszard Hypszer, Technical University of Gdansk (Poland)
Jerzy Plucinski, Technical University of Gdansk (Poland)


Published in SPIE Proceedings Vol. 1085:
Optical Fibres and Their Applications V

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