Potentiometer Provides Non-Contact Measurement
Variohm Eurosensor has announced the availability of the Magnetopot non-contacting linear potentiometer, which provides position feedback from 8mm to 1,200mm in a low profile. Manufactured by Spectra Symbol , the Magnetopot is based upon a fully sealed membrane strip and a simple magnet. It is suitable for hydraulic and pneumatic position sensing as well as other medium precision position feedback applications such as liquid-level monitoring. A rotary version is available for compact, low-profile angle sensing. The Magnetopot is similar in concept to a traditional membrane-type potentiometer, but rather than using a contacting wiper to connect the collector to the resistive element, it relies upon the interaction of a non-contacting external magnet and an encapsulated magnetic or ferromagnetic strip to determine the electrical output and relative position. The thin IP65 membrane has a typical membrane thickness of less than 3.5mm - allowing the position sensor to be discretely installe...