Electricity: measuring and testing – Electrolyte properties
Patent
1989-02-16
1990-07-10
Strecker, Gerard R.
Electricity: measuring and testing
Electrolyte properties
324724, G01N 2742
Patent
active
049409441
ABSTRACT:
An instrument for measuring cathodic protection voltage levels receives a signal representative of an externally applied, full-wave rectified power line frequency cathodic protection potential, which is subject to electrical interference. The fundamental power line frequency component and odd harmonics of that fundamental component are removed to produce a filtered signal. Selected parameters of the filtered signal are measured to provide an indication of the adequacy of the cathodic protection potential.
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Armstrong Randolph K.
Snider David E.
Steele David S.
Lenart R. P.
Regan Maura K.
Strecker Gerard R.
Westinghouse Electric Corp.
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