Method and sensor for measuring the fill level of layered media

摘要

The method involves transmitting an electromagnetic signal in a container for recording a signal curve of the signal reflected in the container. The condition whether the signal time of flight up to a border transition to the specific mediums is determined with reference to the signal curve. The filling levels of the mediums are determined from the signal time of flight for recognizing the border transition from the integral over the signal curve, starting from a reference position. An independent claim is included for sensor.