Front-end circuit apparatus for impedance measurements and...

Details Front-end circuit apparatus for impedance measurements and... Front-end circuit apparatus for impedance measurements and...

G - Physics

01

R

324/43

G01R 27/16 (2006.01) G01R 27/02 (2006.01)

Patent

CA 1133061

FRONT-END CIRCUIT APPARATUS FOR IMPEDANCE MEASUREMENTS AND THE LIKE Abstract of Invention This disclosure is concerned with a novel front- end circuit for impedance measuring circuits and the like, involving separately or alternately operated grounding switches for connecting the free terminals Or unknown and standard impedances, series-connected at a common terminal, to ground, for enabling separate selected voltage measure- ments between the unknown and standard, and with the series- connected impedances fed from a floating transformer; the circuit avoiding errors due to low switch impedances and obviating dependence upon capacitance from either side of the unknown impedance to ground and upon the series im- pedance involved in connections or leads to the unknown impedance.

326967

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