Title :
Optical pH sensor for the alkaline region
Author :
Blue, Robert ; Stewart, George
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow
fDate :
3/13/1997 12:00:00 AM
Abstract :
An optical sensor incorporating near infrared opto-electronics which measures pH in the alkaline region is reported. Contaminants within the aqueous solutions whose pH is being measured interfered with the evanescent wave sensing technique and a method to overcome this problem is demonstrated
Keywords :
chemical sensors; fibre optic sensors; pH measurement; alkaline region; evanescent wave sensing technique; near infrared opto-electronics; optical pH sensor;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970321
