Project - Integrated Capacitance Sensors

Integrated Capacitance Sensors


Sai-Bun Wong


ADE Corporation

Capacitance sensors can be used for noncontact measuring of an airgap. Typically, the probe and drive electronics are separated by a length of cable, and disturbances to this cable lead to noise in the position reading. This project involves integrating the capacitance probe electronics into the probe head itself, transforming the displacement measurement directly into a digital signal.