Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2008-04-08
2008-04-08
Hirshfeld, Andrew H. (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S698000
Reexamination Certificate
active
07355415
ABSTRACT:
A method for determining a condition of a highly resistive fluid in transportation and industrial equipment. The method is suitable for determining the condition of a non-aqueous fluid including applying a high-frequency voltage signal between electrodes immersed in the fluid, measuring the fluid's response to the applied signal and determining a fluid property, and comparing the magnitude of the determined property, relative to the magnitude of that property when the fluid is fresh.
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Boyle Frederick P.
Lvovich Vadim F.
Dole Timothy J
Gilbert Teresan W.
Hilker Christopher D.
Hirshfeld Andrew H.
The Lubrizol Corporation
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