An integrated
eddy-current sensor measures the distance of the sensor to the surface of the roll.
are also discussing the development of a remote field
eddy-current sensor that could be integrated with the PLS 3000*.
Micro-Epsilon's EC5 combines a capacitive sensor with an
eddy-current sensor in a single housing.
The popular sensors that are used in structural health monitoring and give instant information are the following: strain gauges, fibre optic sensors (FOS),
eddy-current sensors, micro-electro-mechanical systems (MEMS) sensors, and piezoelectric sensors [19].
Ferraris
eddy-current sensors include Type ACC 93 with a 1-kHz bandwidth and a 10-mV/g sensitivity when used with a 1-mm thick aluminum rotating disk or linearly moving sheet.