Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2006-10-17
2010-12-14
Nguyen, Vincent Q (Department: 2831)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S713000
Reexamination Certificate
active
07852093
ABSTRACT:
Calculating resistance correction factors includes contacting the arms of a four-arm probe with a test sample; selecting a first set of first and second arms and a second set of third and fourth arms; applying a first current from the first arm to the second arm of the first set; detecting a first voltage between the third and fourth arms of the second set; calculating a first resistance using the first voltage and current; selecting a third set of first and second arms including no more than one arm of the first set, and a fourth set of third and fourth arms including no more than one arm of the second set; applying a second current from the first arm to the second arm of the third set; detecting a second voltage between the third and fourth arms of the fourth set; calculating a second resistance using the second voltage and current; and calculating a correction factor using the first and second resistances.
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Yang et al.; “Determination of Three-Layer Earth Model from Wenner Four-Probe Test Data”; IEEE Transactions on Magnetics, IEEE Service Center, New York, NY, US, vol. 37, No. 5, Sep. 2001; XP011034079.
Capres A/S
Klein O'Neill & Singh, LLP
Nguyen Vincent Q
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