An antenna structure for use in a level measurement apparatus

摘要

An antenna structure for use with level measurement apparatus (100) for measuring the level of a material (22) held in a container (20), said antenna structure (106) comprising: an upper section (130) formed from a material having properties for conducting energy pulses, said upper section (130) being coupled to the level measurement apparatus (100), a lower section (140) formed from the same material, and having an integral antenna, said antenna being responsive to the level measurement apparatus for emitting electromagnetic energy pulses and receiving electromagnetic energy pulses reflected by the material (22) held in the container (20), wherein said upper section (130) includes a sealing ring (110) being formed from the same material as said upper section (130).