Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1989-04-12
1991-04-30
Noland, Tom
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
324717, G01N 2702
Patent
active
050121979
ABSTRACT:
An apparatus for determining the percentages of individual components of a mixture having at least two components of different electrical conductivities, the apparatus having at least two sensors connectable across an a.c. voltage source, and being arranged such that the mixture being introducible therebetween, wherein each sensor has a pin electrode having a first sensing surface for electrical contact with the mixture, and a plate electrode having a second sensing surface electrically insulated from the mixture, wherein the area of the second sensing surface is larger than the area of the first sensing surface; the pin electrode and the plate electrode of each sensor are each connected to the same potential of the voltage source.
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"Try Capacitance Transducers"; Electronic Design; Mar. 15, 1966; pp. 188-194; R. J. Levine.
Bienert Klaus
Ihlenfeld Gerd
Seiffert Volkhard
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