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Technology Overview

Resonant Inductive Position Sensing technology is used to precisely measure the position of a target without mechanical or electrical contact. The target's position is measured using a sensor built with conventional Printed Circuit Board (PCB) technology.  The target houses an electrical resonator comprising an inductor and capacitor. An electronic processing system interacts with the sensor to power the resonator and to detect the signals that it returns. The detected amplitudes of these signals are processed to calculate position.
resonant inductive position sensor system block diagram
CambridgeIC’s single-chip processing solutions are called Central Tracking Units (CTUs). These enable customers to embed non-contact position encoders into their products with the minimum of effort, and to deploy those solutions in high volume at low cost.