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1. 发明申请

WO0000793A9 FLUID PARAMETER MEASUREMENT IN PIPES USING ACOUSTIC PRESSURES 审中-公开
标题翻译：使用声压测量的管道中的流体参数测量
公开(公告)号：WO0000793A9
公开(公告)日：2000-05-25
申请号：PCT/US9914589
申请日：1999-06-28
申请人： CIDRA CORP
发明人： GYSLING DANIEL L , KERSEY ALAN D , PADUANO JAMES D
IPC分类号： G01F1/66 , G01F1/86 , G01N29/024 , G01N29/42 , G01N29/46 , G01F1/74
CPC分类号： G01H5/00 , G01N29/024 , G01N29/42 , G01N29/46 , G01N2291/0217 , G01N2291/0222 , G01N2291/0224 , G01N2291/02836 , G01N2291/02845 , G01N2291/02872 , G01N2291/106
摘要： At least one parameter of at least one fluid in a pipe (12) is measured using a spatial array of acoustic pressure sensors (14, 16, 18) placed at predetermined axial locations x1,x2,x3 along the pipe (12). The pressure sensors (14, 16, 18) provide acoustic pressure signals P1(t), P2(t), P3(t) on lines (20, 22, 24) which are provided to signal processing logic (60) which determines the speed of sound amix of the fluid (or mixture) in the pipe (12) using acoustic spatial array signal processing techniques with the direction of propagation of the acoustic signals along the longitudinal axis of the pipe (12). Numerous spatial array processing techniques may be employed to determined the speed of sound amix. The speed of sound amix is provided to logic (48) which calculates the percent composition of the mixture, e.g., water fraction, or any other parameter of the mixture or fluid which is related to the sound speed amix. The logic (60) may also determine the mach number (MX) of the fluid. The acoustic pressure signals P1(t), P2(t), P3(t) measured are lower frequency (and longer wavelength) signals than those used for ultrasonic flow meters, and thus is more tolerant to inhomogeneities in the flow. No external source is required and thus may operate using passive listening. The invention will work with arbitrary sensor spacing and with as few as two sensors if certain information is known about the acoustic properties of the system.
摘要翻译：使用放置在沿着管道（12）的预定轴向位置x1，x2，x3处的声压传感器（14,16,18）的空间阵列来测量管道（12）中的至少一种流体的至少一个参数。压力传感器（14,16,18）提供线路（20,22,24）上提供给信号处理逻辑（60）的声压信号P1（t），P2（t），P3（t）使用声学空间阵列信号处理技术，沿着管道（12）的纵向轴线传播声学信号的方向，在管道（12）中的流体（或混合物）的声音混合速度。可以采用许多空间阵列处理技术来确定声音的速度。声音amix的速度被提供给逻辑（48），逻辑（48）计算混合物的组成百分比，例如水分，或与声速amix相关的混合物或流体的任何其它参数。逻辑（60）还可以确定流体的马赫数（MX）。测得的声压信号P1（t），P2（t），P3（t）比用于超声波流量计的声压信号P1（t），P2（t），P3（t）更低频率（和更长波长）的信号，因此更容忍流量的不均匀性。不需要外部来源，因此可以使用被动收听操作。如果关于系统的声学特性的某些信息已知，本发明将适用于任意的传感器间距，并且具有少至两个传感器。

2. 发明申请

WO0000793A8 FLUID PARAMETER MEASUREMENT IN PIPES USING ACOUSTIC PRESSURES 审中-公开
标题翻译：用声学压力测量管道中的流体参数
公开(公告)号：WO0000793A8
公开(公告)日：2000-03-30
申请号：PCT/US9914589
申请日：1999-06-28
申请人： CIDRA CORP
发明人： GYSLING DANIEL L , KERSEY ALAN D , PADUANO JAMES D
IPC分类号： G01F1/66 , G01F1/86 , G01N29/024 , G01N29/42 , G01N29/46 , G01F1/74
CPC分类号： G01H5/00 , G01N29/024 , G01N29/42 , G01N29/46 , G01N2291/0217 , G01N2291/0222 , G01N2291/0224 , G01N2291/02836 , G01N2291/02845 , G01N2291/02872 , G01N2291/106
摘要： At least one parameter of at least one fluid in a pipe (12) is measured using a spatial array of acoustic pressure sensors (14, 16, 18) placed at predetermined axial locations x1,x2,x3 along the pipe (12). The pressure sensors (14, 16, 18) provide acoustic pressure signals P1(t), P2(t), P3(t) on lines (20, 22, 24) which are provided to signal processing logic (60) which determines the speed of sound amix of the fluid (or mixture) in the pipe (12) using acoustic spatial array signal processing techniques with the direction of propagation of the acoustic signals along the longitudinal axis of the pipe (12). Numerous spatial array processing techniques may be employed to determined the speed of sound amix. The speed of sound amix is provided to logic (48) which calculates the percent composition of the mixture, e.g., water fraction, or any other parameter of the mixture or fluid which is related to the sound speed amix. The logic (60) may also determine the mach number (MX) of the fluid. The acoustic pressure signals P1(t), P2(t), P3(t) measured are lower frequency (and longer wavelength) signals than those used for ultrasonic flow meters, and thus is more tolerant to inhomogeneities in the flow. No external source is required and thus may operate using passive listening. The invention will work with arbitrary sensor spacing and with as few as two sensors if certain information is known about the acoustic properties of the system.
摘要翻译：管（12）中的至少一种流体的至少一个参数使用沿着管（12）放置在预定轴向位置x 1，x 2，x 3处的声压传感器（14,16,18）的空间阵列来测量。压力传感器（14,16,18）在提供给信号处理逻辑（60）的线（20,22,24）上提供声压信号P1（t），P2（t），P3（t）（12）中的流体（或混合物）的声音混合速度与声学信号沿着管道（12）的纵向轴线的传播方向的声学空间阵列信号处理技术的速度。许多空间阵列处理技术可以用于确定声音速度。声音的速度被提供给逻辑（48），逻辑（48）计算混合物的百分比组成，例如水分，或者与声速有关的混合物或流体的任何其他参数。逻辑（60）也可以确定流体的马赫数（MX）。测量的声压信号P1（t），P2（t），P3（t）是比用于超声波流量计的信号低的频率（和更长的波长）信号，并且因此更容忍流体中的不均匀性。不需要外部源，因此可以使用被动收听进行操作。如果知道关于系统的声学特性的某些信息，本发明将以任意传感器间隔和少至两个传感器来工作。

3. 发明专利

NO20006620D0 未知
公开(公告)号：NO20006620D0
公开(公告)日：2000-12-22
申请号：NO20006620
申请日：2000-12-22
申请人： CIDRA CORP
发明人： GYSLING DANIEL L , KERSEY ALAN D , PADUANO JAMES D
IPC分类号： G01F1/66 , G01F1/86 , G01N29/024 , G01N29/42 , G01N29/46 , G01F

4. 发明专利

CA2335457C FLUID PARAMETER MEASUREMENT IN PIPES USING ACOUSTIC PRESSURES 未知
公开(公告)号：CA2335457C
公开(公告)日：2007-09-11
申请号：CA2335457
申请日：1999-06-28
申请人： CIDRA CORP
发明人： KERSEY ALAN D , PADUANO JAMES D , GYSLING DANIEL L
IPC分类号： G01F1/66 , G01F1/74 , G01F1/86 , G01N29/024 , G01N29/42 , G01N29/46
摘要： At least one parameter of at least one fluid in a pipe (12) is measured using a spatial array of acoustic pressure sensors (14, 16, 18) placed at predetermined ax-ial locations x1,x2,x3 along the pipe (12). The pressure sensors (14, 16, 18) provide acoustic pressure signals P1(t), P2(t), P3(t) on lines (20, 22, 24) which are provided to signal processing logic (60) which deter-mines the speed of sound a mix of the fluid (or mixture) in the pipe (12) using acoustic spatial array signal processing techniques with the direction of propagation of the acoustic signals along the longitudinal axis of the pipe (12). Numerous spatial array processing techniques may be employed to determined the speed of sound a mix. The speed of sound a mix is provided to logic (48) which calculates the percent compo-sition of the mixture, e.g., water fraction, or any other parameter of the mixture or fluid which is related to the sound speed a mix. The logic (60) may also determine the mach number (MX) of the fluid. The acoustic pressure signals P1(t), P2(t), P3(t) measured are lower frequency (and longer wavelength) signals than those used for ul-trasonic flow meters, and thus is more tol-erant to inhomogeneities in the flow. No external source is required and thus may operate using passive listening.The invention will work with arbitrary senso r spacing and with as few as two sensors if certain information is known about the acoustic properties of the system.

5. 发明专利

AU746996B2 Fluid parameter measurement in pipes using acoustic pressures 未知
公开(公告)号：AU746996B2
公开(公告)日：2002-05-09
申请号：AU4961699
申请日：1999-06-28
申请人： CIDRA CORP
发明人： GYSLING DANIEL L , KERSEY ALAN D , PADUANO JAMES D
IPC分类号： G01F1/66 , G01F1/86 , G01N29/024 , G01N29/42 , G01N29/46 , G01F1/74

6. 发明专利

NO20006620L 未知
公开(公告)号：NO20006620L
公开(公告)日：2001-02-22
申请号：NO20006620
申请日：2000-12-22
申请人： CIDRA CORP
发明人： GYSLING DANIEL L , KERSEY ALAN D , PADUANO JAMES D
IPC分类号： G01F1/66 , G01F1/86 , G01N29/024 , G01N29/42 , G01N29/46 , G01N29/18

7. 发明专利

CA2335457A1 FLUID PARAMETER MEASUREMENT IN PIPES USING ACOUSTIC PRESSURES 未知
公开(公告)号：CA2335457A1
公开(公告)日：2000-01-06
申请号：CA2335457
申请日：1999-06-28
申请人： CIDRA CORP
发明人： KERSEY ALAN D , GYSLING DANIEL L , PADUANO JAMES D
IPC分类号： G01F1/66 , G01F1/86 , G01N29/024 , G01N29/42 , G01N29/46 , G01F1/74
摘要： At least one parameter of at least one fluid in a pipe (12) is measured usin g a spatial array of acoustic pressure sensors (14, 16, 18) placed at predetermined axial locations x1,x2,x3 along the pipe (12). The pressure sensors (14, 16, 18) provide acoustic pressure signals P1(t), P2(t), P3(t) o n lines (20, 22, 24) which are provided to signal processing logic (60) which determines the speed of sound amix of the fluid (or mixture) in the pipe (12 ) using acoustic spatial array signal processing techniques with the direction of propagation of the acoustic signals along the longitudinal axis of the pi pe (12). Numerous spatial array processing techniques may be employed to determined the speed of sound amix. The speed of sound amix is provided to logic (48) which calculates the percent composition of the mixture, e.g., water fraction, or any other parameter of the mixture or fluid which is related to the sound speed amix. The logic (60) may also determine the mach number (MX) of the fluid. The acoustic pressure signals P1(t), P2(t), P3(t) measured are lower frequency (and longer wavelength) signals than those used for ultrasonic flow meters, and thus is more tolerant to inhomogeneities in the flow. No external source is required and thus may operate using passive listening. The invention will work with arbitrary sensor spacing and with as few as two sensors if certain information is known about the acoustic properties of the system.

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