发明名称 |
Apparatus for measuring elevation |
摘要 |
Disclosed herein is apparatus for measuring elevation and including an elongated conduit adapted to be filled with liquid and having opposite ends, and a first pressure sensing transducer connected to one end of the conduit for measuring the fluid pressure in that end and including means for producing a first pressure indicative signal. The elevation measuring apparatus further includes a second pressure sensing transducer in fluid communication with the other end of the conduit for measuring the pressure of fluid at that end and including means for producing a second pressure indicative signal, and means for processing the output signals of the pressure sensing transducers, to produce an elevation differential readout.
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申请公布号 |
US4218919(A) |
申请公布日期 |
1980.08.26 |
申请号 |
US19780940750 |
申请日期 |
1978.09.08 |
申请人 |
STEPHENSON, DONALD K;STEPHENSON, DOUGLAS J |
发明人 |
STEPHENSON, DONALD K;STEPHENSON, DOUGLAS J |
分类号 |
G01C5/04;(IPC1-7):G01C5/00 |
主分类号 |
G01C5/04 |
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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