Device for determining the level of a filling medium in a tank comprises light sender and receiver units with their respective elements arranged at a definite pitch in the level measurement direction

摘要

The device for determining the level (41) of a filling medium (40) in a tank (80) comprises a signal processing unit (120), a light sender unit (30) and a light receiver unit (60) with respective sender and receiver elements. These elements are arranged at a definite pitch in the level measuring direction and cover a finite measurement range (20). The level of the filling medium is determined by the signal processing unit on the basis of signals provided by the light receiver unit.