公开(公告)号：US20050011252A1

公开(公告)日：2005-01-20

申请号：US10496936

申请日：2002-11-26

申请人： Shinichiro Arima ,  Noboru Ueda ,  Hideo Taira ,  Yoshifumi Ohbuchi ,  Ippei Torigoe

发明人： Shinichiro Arima ,  Noboru Ueda ,  Hideo Taira ,  Yoshifumi Ohbuchi ,  Ippei Torigoe

IPC分类号： G01M3/28

CPC分类号： G01M3/2815

摘要： The invention provides a pressure measuring method and device that are capable of easily measuring the volume of a pipe that is an object of inspection and of eliminating the influences of a change in temperature in the pipe. A pressure measuring method using a pressure sensor 4 connected to a pipe for feeding a gas thorough a connecting portion for measuring the pressure in the pipe, the method being characterized in that the method comprises a pressurizing step for pressurizing the inside of the pipe by a pump 5 with the pipe held in the closed state, and a step for measuring an amount of pressure change of the pipe in the standing state after completion of the pressurization step, and in that an amount of pressurization change of the in-pipe pressure by the pressurization step, and the flow rate of the gas fed into the pipe during pressurization are measured, and the volume of the pipe in the closed state is calculated on the basis of the amount of pressurization change and the flow rate of the gas, and the amount of leakage of the gas from the pipe is calculated on the basis of the volume of the pipe and the amount of pressure change in the standing state.

摘要翻译： 本发明提供一种压力测量方法和装置，其能够容易地测量作为检查对象的管道的体积并消除管道中的温度变化的影响。 一种使用压力传感器4的压力测量方法，所述压力传感器4连接到用于通过用于测量管道中的压力的​​连接部分供给气体的管道，所述方法的特征在于，所述方法包括通过加压管道的加压步骤 泵5，其中管道保持在关闭状态;以及步骤，用于测量在加压步骤完成之后的立式状态下的管道的压力变化量，并且管内压力的加压变化量由 测量加压步骤和在加压期间供给到管道中的气体的流量，并且基于加压变化量和气体的流量来计算处于关闭状态的管道的体积，以及 基于管道的体积和在立式状态下的压力变化量来计算来自管道的气体的泄漏量。

公开(公告)号：US07024919B2

公开(公告)日：2006-04-11

申请号：US10496936

申请日：2002-11-26

申请人： Shinichiro Arima ,  Noboru Ueda ,  Hideo Taira ,  Yoshifumi Ohbuchi ,  Ippei Torigoe

发明人： Shinichiro Arima ,  Noboru Ueda ,  Hideo Taira ,  Yoshifumi Ohbuchi ,  Ippei Torigoe

IPC分类号： G01M3/28

CPC分类号： G01M3/2815

摘要： The invention provides a pressure measuring method and device that are capable of easily measuring the volume of a pipe that is an object of inspection and of eliminating the influences of a change in temperature in the pipe.A pressure measuring method using a pressure sensor 4 connected to a pipe for feeding a gas thorough a connecting portion for measuring the pressure in the pipe, the method being characterized in that the method comprises a pressurizing step for pressurizing the inside of the pipe by a pump 5 with the pipe held in the closed state, and a step for measuring an amount of pressure change of the pipe in the standing state after completion of the pressurization step, and in that an amount of pressurization change of the in-pipe pressure by the pressurization step, and the flow rate of the gas fed into the pipe during pressurization are measured, and the volume of the pipe in the closed state is calculated on the basis of the amount of pressurization change and the flow rate of the gas, and the amount of leakage of the gas from the pipe is calculated on the basis of the volume of the pipe and the amount of pressure change in the standing state.

摘要翻译： 本发明提供一种压力测量方法和装置，其能够容易地测量作为检查对象的管道的体积并消除管道中的温度变化的影响。 一种使用压力传感器4的压力测量方法，所述压力传感器4连接到用于通过用于测量管道中的压力的​​连接部分供给气体的管道，所述方法的特征在于，所述方法包括通过加压管道的加压步骤 泵5，其中管道保持在关闭状态;以及步骤，用于测量在加压步骤完成之后的立式状态下的管道的压力变化量，并且管内压力的加压变化量由 测量加压步骤和在加压期间供给到管道中的气体的流量，并且基于加压变化量和气体的流量来计算处于关闭状态的管道的体积，以及 基于管道的体积和在立式状态下的压力变化量来计算来自管道的气体的泄漏量。