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.
| Original language | English |
|---|---|
| Pages (from-to) | 526 - 528 |
| Number of pages | 3 |
| Journal | Electronics Letters |
| Volume | 33 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 13 Mar 1997 |
Keywords
- alkaline region
- evanescent wave sensing technique
- near infrared opto-electronics
- optical pH sensor
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