公开(公告)号：WO0000799A9

公开(公告)日：2000-08-03

申请号：PCT/US9914588

申请日：1999-06-28

Applicant: CIDRA CORP

Inventor： MCGUINN REBECCA S ,  GYSLING DANIEL L ,  WINSTON CHARLES R ,  DAVIS ALLEN R ,  FAUSTINO JOHN M

IPC: G01L1/00 ,  E21B47/06 ,  G01L1/24 ,  G01L11/02

CPC classification number: E21B47/06 ,  G01L1/246 ,  G01L11/025

Abstract: Non-intrusive pressure sensors (14-18) for measuring unsteady pressures within a pipe (12) include an optical fiber (10) wrapped in coils (20-24) around the circumference of the pipe (12). The length or change in the length of the coils (20-24) is indicative of the unsteady pressure in the pipe. Bragg gratings (310-324) impressed in the fiber (10) may be used having reflection wavelength lambda that relate to the unsteady pressure in the pipe. One or more of sensors (14-18) may be axially distributed along the fiber (10) using wavelength division multiplexing and/or time division multiplexing.

公开(公告)号：WO2005001394A2

公开(公告)日：2005-01-06

申请号：PCT/US2004017867

申请日：2004-06-07

Applicant: CIDRA CORP

Inventor： WINSTON CHARLES R ,  SAPACK MICHAEL A ,  CURRY PATRICK ,  GYSLING DANIEL L

IPC: G01F1/20 ,  G01F1/66 ,  G01F1/708 ,  G01F1/712 ,  G01F1/74 ,  G01F15/00 ,  G01F

CPC classification number: G01F1/7082 ,  G01F1/712 ,  G01F1/74

Abstract: A portable flow measuring apparatus is provided that measures the speed of sound and/or vortical disturbances propagating in a fluid flow to determine a parameter of the flow propagating through a pipe. The apparatus includes a sensing device that includes an array of pressure sensors, which may be removable, used to measure the acoustic and convective pressure variations in the flow to determine a desired parameter. A portable processing instrument processes the signals provided by the sensing array to provide an output signal indicative of a parameter of the fluid flow. The portable processing instrument includes a processor having appropriate processing algorithms to determine the desired or selected parameter(s) of the process flow (12). The portable processing instrument has a user interface to permit the user to select the parameters to be measured in the process flow, and/or more importantly, to enable the user to modify particular parameters or functions in the processor (30) and/or processing algorithms. The user interface (32) also enables a user to modify the code of the algorithm via a graphic user interface (GUI), keyboard and/or user input signal (34).

Abstract translation: 提供便携式流量测量装置，其测量在流体流中传播的声速和/或涡流干扰的速度，以确定通过管传播的流的参数。 该装置包括感测装置，其包括可以是可移除的压力传感器阵列，用于测量流中的声学和对流压力变化以确定期望的参数。 便携式处理仪器处理由感测阵列提供的信号以提供指示流体流动的参数的输出信号。 便携式处理仪器包括具有适当处理算法的处理器，以确定处理流程（12）的所需或选定的参数。 便携式处理仪器具有用户界面以允许用户在过程流程中选择要测量的参数，和/或更重要的是，使用户能够修改处理器（30）中的特定参数或功能和/或处理 算法。 用户界面（32）还使得用户能够经由图形用户界面（GUI），键盘和/或用户输入信号（34）来修改算法的代码。

公开(公告)号：WO0000799A8

公开(公告)日：2000-07-06

申请号：PCT/US9914588

申请日：1999-06-28

Applicant: CIDRA CORP

Inventor： MCGUINN REBECCA S ,  GYSLING DANIEL L ,  WINSTON CHARLES R ,  DAVIS ALLEN R ,  FAUSTINO JOHN M

IPC: G01L1/00 ,  E21B47/06 ,  G01L1/24 ,  G01L11/02

CPC classification number: E21B47/06 ,  G01L1/246 ,  G01L11/025

Abstract: Non-intrusive pressure sensors (14-18) for measuring unsteady pressures within a pipe (12) include an optical fiber (10) wrapped in coils (20-24) around the circumference of the pipe (12). The length or change in the length of the coils (20-24) is indicative of the unsteady pressure in the pipe. Bragg gratings (310-324) impressed in the fiber (10) may be used having reflection wavelength lambda that relate to the unsteady pressure in the pipe. One or more of sensors (14-18) may be axially distributed along the fiber (10) using wavelength division multiplexing and/or time division multiplexing.

Abstract translation: 用于测量管道（12）内的不稳定压力的非侵入式压力传感器（14-18）包括围绕管道（12）的圆周缠绕成线圈（20-24）的光纤（10）。 线圈（20-24）的长度或长度变化表示管道中的不稳定压力。 施加在纤维（10）中的布拉格光栅（310-324）可以使用具有与管道中的不稳定压力相关的反射波长λ。 一个或多个传感器（14-18）可以使用波分复用和/或时分复用沿光纤（10）轴向分布。