Antenna system for level measurement with radar level measurement devices

• US 20060005621A1
• Filed: 07/05/2005
• Published: 01/12/2006
• Est. Priority Date: 07/07/2004
• Status: Active Grant

• Current Assignee: VEGA Grieshaber KG (Grieshaber Verwaltungsgesellschaft mbH)
• Original Assignee: VEGA Grieshaber KG (Grieshaber Verwaltungsgesellschaft mbH)
• Inventors: Lenk, Fritz
• Granted Patent: US 7,561,113 B2
• Time in Patent Office: Days
• US Class Current: 73/290.V
• CPC Class Codes: G01F 23/284 Electromagnetic waves

Abstract

The invention concerns an antenna system for level measurement with a level measurement device with a wave guide (5) that runs axially and that either has on its rear side an arrangement (4) for the generating and interpreting electromagnetic waves or can be connected to such an arrangement of an antenna, in particular, a parabolic antenna (1-3) on the front side of the wave guide and a wave adapter (9) for transmitting such a wave between two components of the arrangement that conduct the wave for adaptation of the wave transmission between the components, whereby the wave adapter has a through opening in the axial direction. Alternatively, or particularly preferred in combination, the invention concerns an antenna system for level measurement with a wave guide that runs axially, of an antenna, a fastening arrangement for fastening the wave guide to a wall of the vessel and a system of lines for conveying a medium, whereby system of lines (20-24) is designed for supplying a cooling medium to components (2, 3) of the antenna that heat up.

Claims

1. Level measurement antenna system for a level measurement device with

a wave guide (5) that runs axially and that either has an arrangement (4) on its rear side for generating and interpreting electromagnetic waves or can be connected to such an arrangement,

an antenna, in particular a parabolic antenna (1-3) on the front side of wave guide (5) and

a wave adapter (9) for transmitting such a wave between two components of the arrangement that conduct the wave for adaptation of the wave transmission between the components characterized in that,

the wave adapter (9) has a through opening (10) in the axial direction.

2. Arrangement in accordance with claim 1, in which the wave adapter (9) is tapered, in particular conical, in the rear direction towards the through opening (10).

3. Arrangement in accordance with claim 1 in which the wave adapter (9) does not project over an end-face surface on the front side of the wave guide (5), in particular it is flush with the end-face surface.

4. Arrangement according to claim 1 in which the wave adapter (9) is designed for the adaptation of a wave transmission between wave guide (5) and a connecting piece (6) and/or in the reverse direction.

5. Arrangement in accordance with claim 4, in which the connecting piece (6) is designed as wave guide and is dimensioned for spacing the antenna (1-3), in particular a parabolic antenna, from the interior wall of a vessel.

6. Arrangement according to claim 1 in which the through opening (10) is hollow.

7. Level measurement antenna system, in particular in accordance with claim 1, for a level measurement device with

a wave guide (5) that runs axially and that either has an arrangement, (4) on its rear side for generating and interpreting electromagnetic waves or can be connected to such an arrangement,

an antenna, in particular a parabolic antenna (1-3) on the front side of wave guide (5), and

a fastening arrangement for fastening the arrangement, in particular of wave guide (5) to a vessel wall (20), and

a system of lines for conveying a medium characterized in that,

the system of lines (20-24) is embodied for supplying a cooling medium to components of the antenna that heat up (2, 3).

8. Arrangement according to claim 7, in which the system of lines (20-24) for conveying the cooling medium to a transmitter/receiver (2) and/or to an antenna rod (3) of a parabolic antenna is designed as an antenna.

9. Arrangement according to claim 7, in which the system of lines leads from at least one inlet opening (20) to be arranged on the exterior of a vessel wall to at least one outlet opening to be arranged on the interior of a vessel wall, in particular a jet (24).

10. Arrangement according to claim 7, in which the system of lines leads through the wall of least one component of the system that conducts the wave (5, 14, 6).

11. Arrangement according to claim 9, in which the system of lines leads through a plurality of components (5, 14, 6) of the arrangement that conduct the wave.

12. Arrangement according claim 1, in which the cooling medium is gaseous, liquid, or fluid.

13. Arrangement according to claim 1 in which a fastening arrangement for fastening the level measurement of the antenna system, in particular, the wave guide (5) is designed in such a way that the antenna can be pivoted relative to the vessel wall.