| 摘要 |
A fill level gauge operating by the radar principle and preferably used for measuring the fill level of a liquid or fluid in a container incorporates a microwave generator for generating a microwave signal, a waveguide for conducting the microwave signal, a horn radiator serving as a transmitting and/or receiving antenna, an impedance transformer, and a connecting flange, where the horn radiator is positioned on the near side of the connecting flange facing the liquid and the impedance transformer extends at least partially into the opening of the horn radiator. An obturator plate is designed as an integral extension of the impedance transformer and is positioned between the horn radiator and the connecting flange. This design permits easy replacement of the impedance transformer while providing a secure seal at the junction between the horn radiator and the impedance transformer.
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