Optoelectronic fill level sensor and method for determination of a fill level of a medium in a container

摘要

The sensor (10) has a light transmitter (12) that is provided for emitting a transmitted light beam (14) into a monitored zone (20). A movable deflecting unit (18a-18b) is provided for the periodic deflection of transmitted beam. A light receiver (26) is provided for generating a received signal at the measuring points in the zone which thrown back light (22). An evaluation unit (28) is adapted to determine respective distance to the measuring points from the received signal at the time of flight process, and the mutual distance value from the distances at several measuring points. The peripheral deflecting unit is provided for re-deflecting the periodically deflected transmitted light beam. An independent claim is included for method for determination of level of mediums in container.