Abstract: A radar gauging system comprising a transceiver; a vertically extending transmission line probe coupled to the transceiver and configured to guide a transmit signal from the transceiver through the substance composition and to return a reflection signal resulting from reflection of the transmit signal, the transmission line probe having: a first probe portion configured to provide a first coupling between the transmit signal and the substance composition surrounding the first probe portion; and a second probe portion configured to provide a second coupling, weaker than the first coupling, between the transmit signal and the substance composition surrounding the second probe portion; and processing circuitry configured to estimate, based on a timing relation between the transmit signal and the reflection signal and on a known length of the first probe portion, a signal propagation property of the first level range of the substance composition surrounding the first probe portion.

Abstract: A tank arrangement, comprising a tank having a first tank portion and a second tank portion above the first tank portion; an inlet for receiving a substance composition; at least a first radar gauging system arranged at the tank, the first radar gauging system comprising: a first transceiver; a first transmission line probe having an impedance discontinuity spaced apart along the first transmission line probe from the first probe end by a known first distance, the first transmission line probe being arranged with a portion of the first transmission line probe extending from the first probe end to the impedance discontinuity exclusively located in the first tank portion; and first processing circuitry coupled to the first transceiver and configured to estimate a signal propagation property of the substance composition within a first volume surrounding the portion of the first transmission line probe.

Abstract: Estimating a level of a product in a tank by transmitting an electromagnetic transmit signal through a feed-through to a probe; guiding the transmit signal towards and into the product in the tank; receiving, an electromagnetic reflection signal resulting from reflection of the transmit signal; determining an echo representation including a fiducial echo local extremum; and estimating, in the case of a local extremum of the same type as the fiducial echo local extremum within a predefined first distance from a position of the fiducial echo local extremum towards the probe end, the level of the surface based on a propagation parameter for the local extremum within the first distance from the fiducial echo local extremum.

Abstract: A method of monitoring operation of a radar level gauge system installed at a tank and arranged to determine a filling level of a product contained in the tank.

Abstract: A method of monitoring operation of a radar level gauge system installed at a tank and arranged to determine a filling level of a product contained in the tank.