发明名称 |
Microwave level gauge with remote transducer |
摘要 |
A level sensor for use in a process application measures height of a product in a tank. The level meter includes a microwave feedhorn directed into the tank, an electronics housing spaced apart from the feedhorn and a microwave waveguide extending therebetween. A microwave transducer in the housing couples to the waveguide and sends and receives microwave signals. A microprocessor in the housing identifies echoes from the microwave signals which are generated and sensed by the microwave transducer. The microprocessor determines height of the product based upon a microwave echo from the product and a microwave echo from the feedhorn. The microprocessor compensates for the effect of propagation delay through the waveguide on height measurements with the feedhorn echo and provides an output related to height of the product in the tank.
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申请公布号 |
US5847567(A) |
申请公布日期 |
1998.12.08 |
申请号 |
US19940315429 |
申请日期 |
1994.09.30 |
申请人 |
ROSEMOUNT INC. |
发明人 |
KIELB, JOHN A.;LONGSDORF, RANDY J.;EDWARDS, GRANT B.;PALAN, DONALD F.;MANICOR SCOTT D |
分类号 |
G01F23/284;(IPC1-7):G01R27/04;G01F23/28 |
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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