Systems and methods for detection of dielectric change in...

Details Systems and methods for detection of dielectric change in... Systems and methods for detection of dielectric change in...

2007-10-30

2007-10-30

Benson, Walter (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S672000, C324S679000, C324S688000

Reexamination Certificate

active

11201753

ABSTRACT:
Methods and systems are described for efficiently detecting an object. The system includes at least one electrode for measuring a displacement current. The at least one electrode is coupled to a floating ground configuration provided by an op-amp, where the inverting node of the op-amp is coupled to electrode and the non-inverting node is coupled to a signal generator. The system may include a single capacitance sensor for detecting an object. Systems may include a plurality of capacitance sensors in an array configuration for detecting an object.

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