A Fiber Optic Chemical Sensor for Measurement of Groundwater pH

被引：8
|
作者：
机构：
[1] Maher, M.H.
[2] Shahriari, M.R.
来源：
| 1600年 / ASTM International卷 / 21期
关键词：
Environmental chambers - Fiber optic sensors - Fiber optics - Groundwater - pH sensors;
D O I：
10.1520/JTE11789J
中图分类号：
学科分类号：
摘要：
A fiber optic chemical sensor was developed for measurement of pH in groundwater. The sensor consists of a porous polymeric film immobilized with pH indicator, housed in a porous probe. The optical spectral characteristics of the sensor showed very good sensitivity to changes in the pH levels tested when visible light (380 to 780 nm) was used. The sensor/probe system was tested in a laboratory environmental chamber and showed very-good stability and reversibility under various confining pressures and flow rates. © 1993 ASTM International. All rights reserved.
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