Contactless magnetostrictive linear position transducers operate on the same principle as other linear transducers, where the linear displacement of an object is converted to an analog signal. The contactless design provides a longer lifetime and is also immune to electromagnetic interferences. Sensors are available in stroke lengths up to 500 mm, with single or double output options.
Magnetostrictive linear transducers are contactless devices that have a longer life when compared to other linear position sensors. The part of a magnetostrictive position transducer that connects to the moving part of machinery is called a cursor, which contains a position magnet. The measuring element inside the stationary part of the transducer consists of an alloy tube flanked by a copper conductor. A low current is passed through this tube in pulses. The interaction between these electrical pulses and the position magnet allow the transducer to determine position without the need for an electrical connection between the moving and stationary parts of the transducer. With no contact between the transducer elements, there is no wear of mechanical components, which almost guarantees an infinite life. The magnetostrictive technology makes these sensors ideal for industrial environments with electromagnetic interferences. A selection of cursors (required for operation) are sold separately.
Magnetostrictive linear transducers start at