Magnetic Pickup Sensors

What are Magnetic Pickup Sensors?

Magnetic sensors can be found in a wealth applications such as engines, detecting the rotary speed of a moving part. Magnetic sensors can also be used with hydraulic cylinders to detect the relative position of the hydraulic piston. Constructed of a magnetic pickup coil that is wound around a magnetised probe, a magnetic pickup sensors method of operation is relatively simple. Hydraulic cylinder based magnetic sensors typically utilise a reed switch and a magnet for position monitoring.

Mechanical components such as camshafts, cylinder rods, crankshafts, gears etc. can be detected when they pass a magnetic pickup sensors field. This motion causes the magnetic field of the sensor to oscillate inducing a voltage in the sensors coil that can be used to trigger a response from the control system.

Where are magnetic sensors used?

Magnetic pickups and sensors are suited to challenging applications and are generally unaffected by dust and dirt being more robust and hardwearing than other sensor types. Magnetic pickups find applications within engine management systems, speedometers and tachometers. Magnetic cylinder reed switches can monitor hydraulic pistons and other similar devices in applications that monitor linear position.

Kempston Controls stocks an select range of magnetic pickups and magnetic sensors from market leading manufacturers such as Honeywell and Balluff designed to suit many applications. Give our dedicated sales team a call on +44 (0) 1933 411411 or use the contact form above to discuss your magnetic pickup sensor requirements.


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