The invention relates to a radar-based level measurement device (1) for detecting the level of a low-permittivity medium (3) located in a container (2), said measurement device comprising: a feed and receiving element (3), arranged outside the container (2), for generating and receiving electromagnetic radiation (5); a measuring window (6) in the wall of the container (2), which measuring window is permeable to electromagnetic radiation (5); and a waveguide (7) which is arranged in the container (2) and extends over a level measurement range, wherein the waveguide (7) can be flooded by the medium (3), wherein the feed and receiving element (4), the measuring window (6), and the waveguide (7) form a measurement path via which, during the measurement operation, electromagnetic radiation (5) generated by the feed and receiving element (4) propagates through the measuring window (6) and through the waveguide (7), and wherein electromagnetic radiation (9) reflected by a surface (8) of the medium in the waveguide (7) is guided back, through the waveguide (7) and through the measuring window (6), to the feed and receiving element (4).
- 출원번호 : EP2024/061361
- 출원인 : KROHNE MESSTECHNIK GMBH
- 특허번호 :
- IPC : G01F-023/284(2006.01);H01Q-001/22(2006.01);