GUIDED WAVE RADAR LEVEL GAUGE AND METHOD FOR CONTROLLING THE GUIDED WAVE RADAR LEVEL GAUGE

摘要

A guided wave radar level gauge (1) for determining a fill level of a product contained in a tank comprising: a transceiver (17) configured to provide a transmit signal, Tx-signal, in the form of a pulse train, having a controllable pulse repetition frequency f_Tx, and to receive a reflected signal resulting from a reflection of the transmit signal at a surface of the product; a probe (11) connected to the transceiver and configured to propagate the Tx-signal towards the surface and to return the reflected signal to the transceiver, the probe having a known length; and control circuitry (19) configured to determine the fill level based on the received reflected signal, wherein the control circuitry is further configured to set the pulse repetition frequency based on the length of the probe.