发明名称 |
DEVICE AT A RADAR LEVEL GAUGE |
摘要 |
A device for gauging the level of a fluid in a container with a microwave signal is described. The device comprises a vertical tube (1) mounted in the container, and a transmitter and a receiver and an electronic unit for determining the level based on the reflex position of the microwave signal. The device is characterized particularly by a calibration device in the form of a polarization means (6,7) for polarizing the microwave signal in two polarization planes separated from each other and at least one reflecting reactance (10) in the tube (1) arranged to give a substantially stronger reflex of the microwave signal in the first polarization plane than in the second.
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申请公布号 |
CA2044584(A1) |
申请公布日期 |
1990.08.09 |
申请号 |
CA19902044584 |
申请日期 |
1990.01.11 |
申请人 |
SAAB MARINE ELECTRONICS AKTIEBOLAG |
发明人 |
EDVARDSSON, KURT O. |
分类号 |
G01F23/284;F17C13/02;G01F23/28;G01S7/02;G01S7/40;G01S13/88 |
主分类号 |
G01F23/284 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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