LOW POWER RADAR LEVEL GAUGE SYSTEM

摘要

The present invention relates to a radar level gauge system (1) comprising a signal propagation device; a microwave signal source (45); a microwave signal source controller (31, 55); a mixer (48) configured to combine a transmit signal from the microwave signal source and a reflection signal from the surface to form an intermediate frequency signal; a sampler (51, 52) configured to sample the intermediate frequency signal and processing circuitry (55) configured to determine the filling level based on the intermediate frequency signal. The microwave signal source and the sampler are independently controllable.