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US 7,804,446 B2Granted
Antenna for a fill level radar for applications involving high temperatures and/or high pressures
AssigneeVEGA Grieshaber KG
InventorsKlaus Kienzle, Josef Fehrenbach, Thomas Deck, Daniel Schultheiss, Jürgen Motzer
Life of this patent
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Abstract
An antenna for a fill level radar includes a high-temperature process separation device and an attenuation element. The attenuation element is used to improve the measuring signal in the near zone of the antenna and is affixed to the process separation device or in the process separation device. In this way antenna ringing may be significantly reduced.
Claims22
An antenna for a fill level radar for measuring the fill level in a tank, comprising:
- a separation device providing a seal between an interior of the tank and an exterior of the tank, the separation device being for at least one of high-temperature applications and high-pressure applications;
- and
- an attenuation element reducing an unwanted signal passing through the attenuation element, the unwanted signal being a component of a wanted measurement signal, the component being reflected within the antenna;
- wherein the attenuation element is one of (a) affixed to the separation device and (b) arranged in the separation device.
1 more element
A fill level radar, comprising:
- an antenna including (a) a separation device providing a seal between an interior of the tank and an exterior of the tank, the separation device being for at least one of high-temperature applications and high-pressure applications and (b) an attenuation element reducing an unwanted signal passing through the antenna, the unwanted signal being a component of a wanted measurement signal, the component being reflected within the antenna, the attenuation element being one of (a) affixed to the separation device and (b) arranged in the separation device.
Dependencies are inferred from the claim text.