eddy-current sensor

[′ed·ē ‚kə·rənt ′sen·sər]

(engineering)

A proximity sensor which uses an alternating magnetic field to create eddy currents in nearby objects, and then the currents are used to detect the presence of the objects.

References in periodicals archive ?

The Eddy-Current sensor dimension is limited again by the size of the coils on the printed circuit board.

The eddy-current sensor is the most robust concept against external magnetic fields as a high frequent eddy current is induced and its impact analyzed - by this getting rid of low frequency components affecting the signal.

The most used technologies are magnetic sensors, eddy-current sensors and reluctance resolver.

Eddy-current sensors as well use a carrier frequency on the excitation side, resulting in the need of a demodulation before the angle can be derived from the arctangent calculation.

Introduction of a MR rotor-position sensor for off-axis application and comparison to competitive technologies

An integrated eddy-current sensor measures the distance of the sensor to the surface of the roll.

Optical non-contact sensor for sheet, thick-film

are also discussing the development of a remote field eddy-current sensor that could be integrated with the PLS 3000*.

Researchers report progress in reducing need to excavate

Micro-Epsilon's EC5 combines a capacitive sensor with an eddy-current sensor in a single housing.

Capacitance thickness gauges: new designs break old barriers

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].

The Continuous Monitoring of the Health of Composite Structure

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.