Electricity: measuring and testing – Electrolyte properties – Using a ph determining device
Patent
1988-07-25
1989-11-07
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Electrolyte properties
Using a ph determining device
324 715, 204406, G01N 2756
Patent
active
048795178
ABSTRACT:
Compensation for the temperature sensitivity of the output of a potentiometrically operated ISFET probe whose drain-source voltage and drain-source current are held constant is provided by using a Nernstian temperature correction of the difference between the ISFET output and the isopotential voltage of the probe and offsetting the resulting difference by the isopotential pIon value. An ISFET/NISFET pair provides a cancellation of variations due to manufacturing.
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Connery James G.
Shaffer, Jr. Earl W.
Eisenzopf Reinhard J.
General Signal Corporation
Huberfeld Harold
Miller, Jr. William G.
Regan Maura K.
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