Position sensor has magnet and variable cross section yoke coupled to moving object with output signal from sensor in air gap

摘要

A position sensor has a magnet (1) and variable cross section yoke (2) assembly with field sensors (5) in the air gap and output signal (7) measuring the position of a moving magnetic object (6) disturbing the magnetic circuit . Includes INDEPENDENT CLAIMs for measurement using the difference signal for two adjacent inverted yoke assemblies and for a measurement procedure using the equipment.