Magnetic wave sensor e.g. for position measurement of pneumatic cylinders, has coil formed around longitudinal direction with release magnet has along coil, different positions

摘要

The sensor has a coil formed around a longitudinal direction. A release magnet (19) has along the coil, different positions, so that as a function of the position of the release magnet different sections are brought in saturation. The coil is connected to a circuit for evaluating the production of a position signal as a function of the position of the release magnet along the coil. The coil density is variable along the longitudinal direction.