Electricity: measuring and testing – Electrolyte properties – Using a ph determining device
Reexamination Certificate
2007-08-17
2011-11-22
Natalini, Jeff (Department: 2858)
Electricity: measuring and testing
Electrolyte properties
Using a ph determining device
Reexamination Certificate
active
08063644
ABSTRACT:
A method of measuring impedance of a pH electrode is provided. A test current is applied to the pH electrode for a time duration that is less than 50 percent of a time constant that is associated with electrical characteristics of the pH electrode. A voltage response of the pH electrode is measured when the test current is applied to the pH electrode. An impedance of the pH electrode is calculated as a function of the voltage response.
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Feng Chang-Dong
Lomibao Jeffrey
Rezvani Behzad
Christenson Christopher R.
Natalini Jeff
Rosemount Analytical Inc.
Westman Champlin & Kelly P.A.
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