Apparatus and method for measuring ground impedance

A method and apparatus for measuring ground to earth impedance at frequencies above dc. A computer controlled instrument is provided for implementing a Three Point Measurement or a Fall of Potential method using three ground paths and a plurality of discrete frequencies in the range of from 5 Hz to...

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Bibliographic Details
Main Author ROGERS; WESLEY A
Format Patent
LanguageEnglish
Published 15.11.1994
Edition5
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:A method and apparatus for measuring ground to earth impedance at frequencies above dc. A computer controlled instrument is provided for implementing a Three Point Measurement or a Fall of Potential method using three ground paths and a plurality of discrete frequencies in the range of from 5 Hz to 200 MHz. The complex impedance vector array, including absolute value and phase angle, and the real and complex components, for each frequency selected in the range may be determined. The acquired data is evaluated to identify antenna effects to improve the quality of the ground and to select the better ground path.
Bibliography:Application Number: US19920854313