Patent ID: 7098843
Filing Date: 2006-08-29
Classification: G01F,G01S

Abstract:
1. A radar level gauge system for determining the filling level of a filling material in a tank having a tank height, wherein the filling level is less or equal to said tank height, comprising: an transmitter for transmitting measuring signals towards the surface of the filling material; a receiver for receiving echo signals from the tank; and processing circuitry for determining the filling level of the tank based on said echo signal, wherein said processing circuitry is adapted to amplify the received echo signals according to an amplification scheme in dependence of the distance from which the echo signals originates, in such a way that an echo signal from a lower filling level is more amplified than an echo signal from a higher filling level; wherein the amplification scheme of the processing circuitry is adjustable, and wherein the processing circuitry comprises direct or indirect information on the tank height, and is adapted to adjust said amplification scheme in order to optimize the amplification of the echo signal based on the height of the tank.