ACOUSTIC CAPACITY, VOLUME, AND SURFACE AREA MEASUREMENT METHOD
    1.
    发明申请
    ACOUSTIC CAPACITY, VOLUME, AND SURFACE AREA MEASUREMENT METHOD 有权
    声学能力,体积和表面面积测量方法

    公开(公告)号:US20090217749A1

    公开(公告)日:2009-09-03

    申请号:US12394853

    申请日:2009-02-27

    CPC classification number: G01F17/00

    Abstract: The present invention provides an acoustic capacity measurement method for finding capacity of a container or object by removing effect of the surface area without using an approximate expression of acoustic impedance.The acoustic capacity measurement method for finding capacity of a container under test based on a ratio of pressure changes produced in a reference vessel and the container under test by giving equal alternating capacity changes to the reference vessel and the container under test includes a pressure change ratio calculating step of calculating a ratio between measured values of pressure changes in the reference vessel and the container under test; a rotation step of calculating an acoustic admittance component of the container under test by rotating the calculated pressure change ratio by an angle of θ so that the pressure change ratio will vary at a slope of 1 with respect to changes in a surface area in a complex plane; an oblique coordinate transformation step of transforming the calculated acoustic admittance component into an oblique coordinate system whose axes are given by an imaginary axis and a straight line with a slope of 1; and a capacity calculating step of calculating the capacity of the container under test by multiplying values in a direction of the imaginary axis of the acoustic admittance component transformed into oblique coordinates by a predetermined real number.

    Abstract translation: 本发明提供一种用于通过去除表面积的影响而不使用声阻抗的近似表达来找出容器或物体的容量的声学能力测量方法。 用于根据通过对参考容器和被测试容器施加相等的交变容量变化,在参考容器和被测容器中产生的压力变化的比率来测量被测容器的容量的声学能力测量方法包括压力变化率 计算参考容器和被测容器的压力变化的测量值之间的比率的计算步骤; 旋转步骤,通过将计算出的压力变化率转动θ角来计算被测容器的声导纳分量,使得压力变化率相对于复合物中的表面积的变化以斜率1变化 飞机 将计算出的声导纳分量变换为倾斜坐标系的倾斜坐标变换步骤,该倾斜坐标系的轴由虚轴和斜率为1的直线给出; 以及容量计算步骤,通过将转换成倾斜坐标的声导纳分量的虚轴方向的值乘以预定的实数来计算被测容器的容量。

    Pressure measuring method and device
    2.
    发明授权
    Pressure measuring method and device 失效
    压力测量方法和装置

    公开(公告)号:US07024919B2

    公开(公告)日:2006-04-11

    申请号:US10496936

    申请日:2002-11-26

    CPC classification number: G01M3/2815

    Abstract: 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.

    Abstract translation: 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。

    Pressure measuring method and device
    3.
    发明申请
    Pressure measuring method and device 失效
    压力测量方法和装置

    公开(公告)号:US20050011252A1

    公开(公告)日:2005-01-20

    申请号:US10496936

    申请日:2002-11-26

    CPC classification number: G01M3/2815

    Abstract: 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.

    Abstract translation: 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。

    Acoustic capacity, volume, and surface area measurement method
    4.
    发明授权
    Acoustic capacity, volume, and surface area measurement method 有权
    声容,体积和表面积测量方法

    公开(公告)号:US08104336B2

    公开(公告)日:2012-01-31

    申请号:US12394853

    申请日:2009-02-27

    CPC classification number: G01F17/00

    Abstract: An acoustic capacity measurement method for finding capacity of a container or object by removing effect of the surface area without using an approximate expression of acoustic impedance is provided. The acoustic capacity measurement method for finding capacity of a container includes a pressure change ratio calculating step, a rotation step, an oblique coordinate transformation step, and a capacity calculating step.

    Abstract translation: 提供了一种用于通过消除表面积的影响而不使用声阻抗的近似表达来发现容器或物体的容量的声学能力测量方法。 用于发现容器容量的声容测量方法包括压力变化率计算步骤,旋转步骤,倾斜坐标变换步骤和容量计算步骤。

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