Admittance meter for monitoring a medium

Details Admittance meter for monitoring a medium Admittance meter for monitoring a medium

2009-06-11

2011-10-25

Koval, Melissa (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

C324S640000, C222S066000, C073S30400R

Reexamination Certificate

active

08044669

ABSTRACT:
An admittance meter having an electrical alternating signal source, a diode ring operated as a synchronous rectifier with at least four diodes connected in series and in the same direction in succession, a measuring sensor, and an evaluation unit. The diode ring is subjected to an alternating signal via first second feed points, which are each connected via two series-connected diodes. The measuring sensor is connected to the first feed point, and the evaluation unit is connected to a first or a second measurement point of the diode ring. The first and second measurement points are each connected via one diode to the first and second feed points, respectively.

REFERENCES:
patent: 4047100 (1977-09-01), Robinson

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