ISSN:
1572-8838
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Electrical Engineering, Measurement and Control Technology
Notes:
Abstract A transducer is described in which the e.m.f. of the electrochemical cell, Na(1, pressurep o)/beta″-alumina/Na(1, pressurep), is used to measure the pressure,p. In the cell, the left-hand electrode contains sodium under its saturated vapour pressure,p o; the right-hand electrode is exposed to the process pressure,p. For pressures of a few hundred bar, the output is linear and reversible, and the e.m.f. is related to the pressure by the equationE=−pV m/F, whereV m is the molar volume of liquid sodium at the experimental temperature andF is the Faraday constant. An experimental device has been made and tested and is found to behave as predicted by this relation. Its output is 0.0259 mV bar−1 at 120° C.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01076047
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