Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2007-10-16
2007-10-16
Benson, Walter (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S672000, C324S658000
Reexamination Certificate
active
11472230
ABSTRACT:
A method and apparatus for measurement of capacitance by use of an adaptive input-cell circuitry, part of a configurable electronic controller, or generally by a computer controlled adaptive input-cell. The input-cell comprises a comparator, two transistor switches and resistor networks, respectively connected to the comparator and two switches. The input-cell receives control signals to the transistor switches and a synchronization waveform input from the configurable electronic controller or computer. The input-cell measures the capacitance connected at its input or alternatively the self-capacitance of an open conductor. The input-cell converts the input signal parameters into time-based signals, which cumulative count are related to the value of the measured capacitance.
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Benson Walter
Eastman Kodak Company
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