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    The Design Corner
   Introduction to Capacitance Proximity Switches
     Updated on: Tuesday, April 08, 2008 04:25 PM

Introduction
Applications

Physics of Capacitance

Units of Capacitance
Dielectric Constant Definition
Human Body Capacitance

Low Voltage Touch Switch Circuits

Excitation Circuits
Capacitance Change Sensor Circuits
Interface Circuits

AC Line Voltage Switch Circuits

Capacitance Proximity Switch Examples
(Faraday Switches -- Commercially Available)

Helpful Links

Sensors Magazine
Quantum Research Group, developers of the Qprox sensor IC.

Gordon Products Inc.

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