Sensor for position measurement of body movable along axis - has capacitive sensor whereby surfaces superposition changes as body moves

摘要

The sensor for determining the position of a body moving along an axis contains a measurement element whose shape changes with the body position and causes a corresp. change in an electromagnetic parameter. The electromagnetic parameter is a capacitance whose variation is strictly monotonic with increasing or decreasing body position. As the body moves the superposition (1.1) of the surface (1.3) of a measurement element connected to the body with a surface (1.2) mounted on a carrier element changes. USE/ADVANTAGE - Light and compact and can be manufactured very simply.