By Edward E. Herceg,
Chief Technology Officer, Alliance Sensors Group (a div. of H.G. Schaevitz LLC)
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What is LVIT Technology? LVITs, Linear Variable Inductive Transducers, have been around for more than 30 years, and are becoming very popular due to their relatively low cost and flexibility to be packaged in many different forms. LVITs are contactless position sensing devices that utilize eddy currents developed by an inductor in the surface of a conductive movable element to vary the resonant frequency of an L-C tank circuit.
What is a LVIT and where are they used? LVITs, Linear Variable Inductive Transducers, which have been around for more than 30 years, are relatively low cost, contactless position sensing devices that utilize eddy currents developed by an inductor in the surface of a conductive movable element that is mechanically coupled to the moving object whose position is being measured.
Linear position measurement is a frequent requirement for many industrial automation or process control systems, QA functions, and R&D testing. The actual position measurement function is normally done by some type of position sensor, the selection of which quite often is based on just a few key specification parameters and its purchase cost. However, using the sensor’s purchase cost for economic guidance can be very misleading.