Method and apparatus for time based measurement of impedance

Details Method and apparatus for time based measurement of impedance Method and apparatus for time based measurement of impedance

1982-07-22

1985-10-08

Smith, Jerry

Boots, shoes, and leggings

324 57R, 324 62, G01R 2700

Patent

active

045464413

ABSTRACT:
Method and apparatus for time lapse based measurement of impedance wherein a series of time measurements are made by voltage transitions with respect to a reference voltage across an unknown component and across a reference component with a known impedance. The time measurements are fed to a microprocessor or other computer means for calculating the impedance of the unknown component.

REFERENCES:
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patent: 4242631 (1980-12-01), Hall
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patent: 4342089 (1982-07-01), Hall
patent: 4404545 (1983-09-01), Nakanishi et al.
patent: 4409543 (1983-10-01), Sugihara
Bell, Coster, and Smith, "A Computer Based, Four Terminal Impedance Measuring System for Low Frequencies", 1975, pp. 66-70, vol. 8, Journal of Physics E: Scientific Instruments.

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