| 摘要 |
An apparatus and a method for determining the liquid (1) level in a tank (2) by means of a radar level measuring device (6), which transmits microwaves downwards to the surface of the liquid (7) through a waveguide (5), in the form of a vertically arranged pipe, which is open close to the base (3) of the tank (2), and which after reflection of the microwaves from the liquid surface (7) receives the microwaves for determining the level of the liquid surface, where an absorber (8) for microwaves is placed at the base (3) of the tank (2) below the opening of the pipe to absorb the greater part of the microwave energy that is incident on the base of the tank.
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