发明名称 |
Detection of step charges of pressure in vessels and apparatus therefor |
摘要 |
Detectors for monitoring step changes of pressure in a vessel, for example a pipeline, include sensors outside the vessel for detecting a change in its dimensions resulting from a fall in pressure occurring at a minimum rate of 0.005 bars per second which is not followed by a corresponding rise in pressure within 0.05 seconds. They are useful in detecting leaks.
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申请公布号 |
US4706501(A) |
申请公布日期 |
1987.11.17 |
申请号 |
US19810319674 |
申请日期 |
1981.11.09 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
ATKINSON, PETER;ALLAN, BERNARD D. |
分类号 |
G01L9/00;G01M3/28;G01M3/36;(IPC1-7):G01L7/02 |
主分类号 |
G01L9/00 |
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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