Method and apparatus for testing the impedance of two electrical

Details Method and apparatus for testing the impedance of two electrical Method and apparatus for testing the impedance of two electrical

1990-07-26

1992-05-19

Snow, Walter E.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324691, 324 725, G01R 2714, G01R 3102

Patent

active

051152002

ABSTRACT:
A process and apparatus are provided for checking the electric continuity of an electrically conducting material device, in which a current is injected between two points of said device and the resulting voltage between these points is measured. The invention is remarkable in that said current is an AC current and its pulsation is chosen sufficiently large so that the impedance between the two points, measured by the ratio of said voltage and of the current, may be considered as being equal to the product of the inductance of the path of the current between said points multiplied by said pulsation.

REFERENCES:
patent: 2142619 (1939-01-01), Sciaky
patent: 2401917 (1946-06-01), Drake
patent: 3466539 (1969-09-01), Pitts et al.
patent: 4567427 (1986-01-01), Hattori et al.

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