MCU RADAR LEVEL GAUGE WITH MCU TIMING CIRCUIT

摘要

The present invention is a method for determining a filling level of a product in a tank using an electromagnetic signal, comprising: a) generating a transmission signal having a predetermined length; b) propagating the signal towards the product; c) receiving a reflected signal; d) determining whether the reflected signal overlaps the transmitted signal in the time-domain; e) if overlap is detected, setting the overlap parameter to 1 and otherwise setting the overlap parameter to 0; And if the state of the overlap parameter is not changed and no overlap is detected, generating a signal having a length exceeding the previous length and repeating step b); If the state of the overlap parameter is not changed and overlap is detected, generating a signal having a length shorter than the previous length and repeating step b); And if the state of the superposition parameter is changed, determining a filling level based on the length of the transmission signal.