Patent ID: 6337602
Filing Date: 2002-01-08
Classification: G01D,G01R,G08G

Abstract:
An oscillator circuit for use in an inductive sensor, said oscillator circuit comprising:a first capacitor; a second capacitor in electrical communication with said first capacitor; a wire-loop coupled to each of said first capacitor and said second capacitor; a voltage supply; an excitation circuit connectable with said first capacitor and said second capacitor to connect said voltage supply to said first capacitor and said second capacitor at a selected polarity and wherein either of said first capacitor and said second capacitor is charged to a preselected voltage by said excitation circuit and the other of said first capacitor and said second capacitor is discharged when said excitation circuit is connected and each of said first capacitor and said second capacitor is discharged when said excitation circuit is disconnected to produce a pair of decaying oscillations having a caduceus-shaped output.