发明授权
US5948969A Methods for measuring the flow rate due to a leak in a pressurized pipe
system
失效
用于测量由加压管道系统中的泄漏引起的流量的方法
- 专利标题： Methods for measuring the flow rate due to a leak in a pressurized pipe system
- 专利标题（中）： 用于测量由加压管道系统中的泄漏引起的流量的方法
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申请号： US954002申请日： 1997-10-20
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公开(公告)号： US5948969A公开(公告)日： 1999-09-07
- 发明人: Michael R. Fierro , Joseph W. Maresca, Jr. , James W. Starr
- 申请人： Michael R. Fierro , Joseph W. Maresca, Jr. , James W. Starr
- 申请人地址： CA Mountain View
- 专利权人： Vista Research, Inc.
- 当前专利权人： Vista Research, Inc.
- 当前专利权人地址： CA Mountain View
- 主分类号： G01M3/28
- IPC分类号： G01M3/28 ; G01M3/04 ; G01M3/08
摘要：
A method and improved apparatus for detecting leaks in pressurized pipeline systems, which compensate for the thermally induced volume changes of the liquid in the line during a test that are produced by both the nonlinear changes in the mean temperature of the liquid and the pressure-induced perturbations of the temperature of the liquid.
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