Krohne S.a.s.

Samuel Grosdidier

Olivier Dubray

A device for distance measurement includes a signal generator for generating a signal, a transmitting antenna for transmitting the signal, a receiving antenna for receiving a received signal, a first mixer, an evaluation unit, and a diagnostic unit having a diagnostic line. The first mixer mixes the signal and the received signal. The signal generator is connected to the diagnostic line and the signal is a diagnostic signal after passing through a delay element of the diagnostic line. The diagnostic signal is mixed with the signal in the first mixer or a second mixer to form a diagnostic mixed signal. The output of the first mixer, and the output of any second mixer, is or are connected to the evaluation unit, which uses the diagnostic mixed signal to check functionality of the signal generator and/or the evaluation algorithm.

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Beauregard-Baret, France

Samuel Grosdidier