| 摘要 |
The present invention relates to a device for measuring the level of a fluid (116) in a tank (118) using low frequency acoustic pulses, said device comprising: a transducer means (114) for transmitting and receiving acoustic pulses, and a waveguide (112) connected to said transducer (114) and extending into the fluid (116), said waveguide having a reference part (128) located above the fluid surface, wherein said waveguide reference part (128) is provided with at least one bend in a plane essentially parallel to the surface of the fluid (116). |
