RADAR LEVEL GAUGE SYSTEM
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United States of America Patent
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Issued Date -
Apr 2, 2009
app pub date -
Sep 28, 2007
filing date -
Sep 28, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A radar level gauge system, for determining a filling level of a product contained in a tank, comprising a transceiver configured to transmit and receive electromagnetic signals, a probe arranged to extend towards and into the product inside the tank and configured to guide transmitted signals towards a surface of the product, where signals are reflected, and reflected signals back from the surface of the product. The probe has a mechanical and direct electrical connection to a conductive tank structure. The radar level gauge system further comprises processing circuitry connected to the transceiver and configured to determine the filling level based on the transmitted and reflected signals, and a probe coupling device connected to the transceiver. The probe coupling device includes a first coupling segment configured to couple electromagnetic signals between the transceiver and the probe with a first coupling efficiency and a second coupling segment configured to couple electromagnetic signals between the transceiver and the probe with a second coupling efficiency, the second coupling efficiency being different from the first coupling efficiency.
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