Abstract
A high pressure pH sensor has been developed and tested in the laboratory to a pressure of 150 kg/cm2 and in the ocean to a depth of 270 m. The sensor is composed of specially designed glass membrane and reference electrodes. A pressure equalizing technique is used to prevent pressure gradients across the walls of the electrodes. Seawater buffer was used to calibrate the sensor for oceanographic application resulting in 0.02 p H units reproducibility.
Original language | English |
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Pages (from-to) | 1133-1138 |
Number of pages | 6 |
Journal | Review of Scientific Instruments |
Volume | 39 |
Issue number | 8 |
DOIs | |
State | Published - 1 Dec 1968 |
Externally published | Yes |
ASJC Scopus subject areas
- Instrumentation