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51. 发明申请

WO9939214A8 ACCELEROMETER FEATURING FIBER OPTIC BRAGG GRATING SENSOR FOR PROVIDING MULTIPLEXED MULTI-AXIS ACCELERATION SENSING 审中-公开
标题翻译：加速度计具有光纤布拉格光栅传感器，用于提供复合多轴加速度传感
公开(公告)号：WO9939214A8
公开(公告)日：1999-11-18
申请号：PCT/US9901982
申请日：1999-01-29
申请人： CIDRA CORP
发明人： JONES RICHARD T , MARON ROBERT J , DAIGLE GUY A
IPC分类号： G01P15/093 , G01P15/18 , G01P15/08 , G01P15/00
CPC分类号： G01P15/18 , G01P15/093
摘要： An accelerometer has a main body in combination with one or more Bragg grating sensors respectively arranged along one or more axes. The main body has a mass that responds to an acceleration in one or more axes. The compression or stretching of a Bragg grating sensor causes a wavelength shift in the optical signal that contains information about the acceleration and that is sensed by a detector.
摘要翻译：加速度计具有与分别沿一个或多个轴布置的一个或多个布拉格光栅传感器组合的主体。主体有一个质量块，可以响应一个或多个轴的加速度。布拉格光栅传感器的压缩或伸展引起光信号中的波长偏移，其包含关于加速度的信息并且由检测器感测。

52. 发明申请

WO2008060942A2 APPARATUS AND METHOD FOR MEASURING A FLUID FLOW PARAMETER WITHIN AN INTERNAL PASSAGE OF AN ELONGATED BODY 审中-公开
标题翻译：测量流体流动参数的装置和方法
公开(公告)号：WO2008060942A2
公开(公告)日：2008-05-22
申请号：PCT/US2007084077
申请日：2007-11-08
申请人： CIDRA CORP , DAVIS MICHAEL A
发明人： DAVIS MICHAEL A
IPC分类号： G01F1/708 , G01F1/66 , G01F1/712 , G01F1/74
CPC分类号： G01F1/7082 , G01F1/667 , G01F1/712 , G01F1/74
摘要： A method and apparatus for measuring at least one parameter of a fluid flowing through an internal passage of an elongated body is provided. The internal passage is disposed between a first wall and a second wall, and the first wall and the second wall each include an interior surface and an exterior surface. The method includes the steps of providing an array of at least two ultrasonic sensor units, operating the sensor units to transmit ultrasonic signals at one or more frequencies substantially coincident with at least one frequency at which the transmitted ultrasonic signals resonate within the first wall, receiving the ultrasonic signals with the sensor units, and processing the received ultrasonic signals to measure the at least one parameter of fluid flow within the internal passage.
摘要翻译：提供一种用于测量流过细长体的内部通道的流体的至少一个参数的方法和装置。内部通道设置在第一壁和第二壁之间，并且第一壁和第二壁各自包括内表面和外表面。该方法包括以下步骤：提供至少两个超声波传感器单元的阵列，操作传感器单元以一个或多个频率发射超声波信号，该频率与至少一个频率基本一致，在该频率处发射的超声波信号在第一壁内共振，接收所述超声波信号与所述传感器单元相关联，并且处理所接收的超声波信号以测量所述内部通道内的流体流动的所述至少一个参数。

53. 发明申请

WO2006112878A2 APPARATUS AND METHOD FOR PROVIDING A FLUID CUT MEASUREMENT OF A MULTI-LIQUID MIXTURE COMPENSATED FOR ENTRAINED GAS 审中-公开
标题翻译：用于提供用于被控气体的多液体混合物的流体切割测量的装置和方法
公开(公告)号：WO2006112878A2
公开(公告)日：2006-10-26
申请号：PCT/US2005032644
申请日：2005-09-15
申请人： CIDRA CORP , GYSLING DANIEL L , LOOSE DOUGLAS H
发明人： GYSLING DANIEL L , LOOSE DOUGLAS H
CPC分类号： G01N22/00 , G01N9/36 , G01N29/024 , G01N29/222 , G01N33/28 , G01N33/2823 , G01N2291/0224 , G01N2291/024 , G01N2291/02433 , G01N2291/02827 , G01N2291/02836 , G01N2291/02872
摘要： An apparatus for determining a fluid cut measurement of a multi-liquid mixture includes a first device configured to sense at least one parameter of the mixture to determine a fluid cut of a liquid in the mixture. A second device is configured to determine a concentration of gas in the mixture in response to a speed of sound in the mixture; and a signal processor is configured to adjust the fluid cut of the liquid using the concentration of the gas to determine a compensated fluid cut of the liquid. The parameter of the mixture sensed by the first device may include a density of the mixture (e.g., by way of a Coriolis meter), a permittivity of the mixture (e.g., by way of a resonant microwave oscillator), or an amount of microwave energy absorbed by the mixture (e.g., by way of a microwave abosorption watercut meter). The signal processor may employ different correction factors depending on the type of a fluid cut device used. The second device may include a gas volume fraction meter.
摘要翻译：用于确定多液体混合物的流体切割测量的装置包括构造成感测混合物的至少一个参数以确定混合物中液体的流体切割的第一装置。第二装置被配置为响应混合物中的声速来确定混合物中气体的浓度; 并且信号处理器被配置为使用气体的浓度调节液体的液体切割以确定液体的补偿流体切割。由第一装置感测的混合物的参数可以包括混合物的密度（例如，通过科里奥利计），混合物的介电常数（例如通过谐振微波振荡器）或微波的量由混合物吸收的能量（例如，通过微波吸收水切割仪）。信号处理器可以根据所使用的流体切割装置的类型使用不同的校正因子。第二装置可以包括气体体积分数计。

54. 发明申请

WO2005088262A3 METHOD AND APPARATUS FOR MEASURING PARAMETERS OF A STRATIFIED FLOW 审中-公开
标题翻译：用于测量分流流量参数的方法和装置
公开(公告)号：WO2005088262A3
公开(公告)日：2006-05-04
申请号：PCT/US2005008192
申请日：2005-03-10
申请人： CIDRA CORP , GYSLING DANIEL L , FERNALD MARK R , BAILEY TIMOTHY J , VIEGA JOHN
发明人： GYSLING DANIEL L , FERNALD MARK R , BAILEY TIMOTHY J , VIEGA JOHN
IPC分类号： G01F1/66 , G01F1/00 , G01F1/34 , G01F1/704 , G01F1/708 , G01F1/712 , G01F1/74
CPC分类号： G01F1/34 , G01F1/666 , G01F1/704 , G01F1/7082 , G01F1/712 , G01F1/74
摘要： Various methods are described for measuring parameters of a stratified flow using at least one spatial array of sensors disposed at different axial locations along the pipe. Each of the sensors provides a signal indicative of unsteady pressure created by coherent structures convecting with the flow. In one aspect, a signal processor determines, from the signals, convection velocities of coherent structures having different length scales. The signal processor then compares the convection velocities to determine a level of stratification of the flow. The level of stratification may be used as part of a calibration procedure to determine the volumetric flow rate of the flow. In another aspect, the level of stratification of the flow is determined by comparing locally measured velocities at the top and bottom of the pipe. The ratio of the velocities near the top and bottom of the pipe correlates to the level of stratification of the flow. Additional sensor arrays may provide a velocity profile for the flow. In another aspect, each of the sensors in the array includes a pair of sensor half-portions disposed on opposing lateral surfaces of the pipe, and the signal processor determines a nominal velocity of the flow within the pipe using the signals.
摘要翻译：描述了用于使用布置在沿着管的不同轴向位置处的至少一个传感器空间阵列来测量分层流的参数的各种方法。每个传感器提供指示由与流动对流的相干结构产生的不稳定压力的信号。在一个方面，信号处理器根据信号确定具有不同长度尺度的相干结构的对流速度。然后，信号处理器比较对流速度以确定流动的分层水平。分层的水平可以用作校准过程的一部分，以确定流量的体积流量。另一方面，通过比较管道顶部和底部的局部测量速度来确定流动的分层水平。管道顶部和底部附近的速度比与流动分层的水平相关。附加的传感器阵列可以为流提供速度分布。在另一方面，阵列中的每个传感器包括设置在管的相对侧表面上的一对传感器半部分，并且信号处理器使用该信号来确定管道内的流量的标称速度。

55. 发明申请

WO2005010470A3 AN APPARATUS AND METHOD FOR COMPENSATING A CORIOLIS METER 审中-公开
标题翻译：一种用于补偿CORIOLIS仪器的装置和方法
公开(公告)号：WO2005010470A3
公开(公告)日：2005-05-12
申请号：PCT/US2004023068
申请日：2004-07-15
申请人： CIDRA CORP
发明人： GYSLING DANIEL L , CURRY PATRICK , LOOSE DOUGLAS H , BANACH THOMAS E
IPC分类号： G01F1/74 , G01F1/84 , G01N9/00 , G01F15/02
CPC分类号： G01F15/024 , G01F1/74 , G01F1/8413 , G01F1/8477 , G01F25/0007 , G01N9/002 , G01N2291/02818
摘要： A flow measuring system is provided that provides at least one of a compensated mass flow rate measurement and a compensated density measurement. The flow measuring system includes a gas volume fraction meter in combination with a coriolis meter. The GVF meter measures acoustic pressures propagating through the fluids to measure the speed of sound alphamix propagating through the fluid to calculate at least gas volume fraction of the fluid and/or the reduced natural frequency. For determining an improved density for the coriolis meter, the calculated gas volume fraction and/or reduced frequency is provided to a processing unit. The improved density is determined using analytically derived or empirically derived density calibration models (or formulas derived therefore), which is a function of the measured natural frequency and at least one of the determined GVF, reduced frequency and speed of sound, or any combination thereof. The gas volume fraction (GVF) meter may include a sensing device having a plurality of strain-based or pressure sensors spaced axially along the pipe for measuring the acoustic pressures propagating through the flow.
摘要翻译：提供流量测量系统，其提供补偿的质量流量测量和补偿密度测量中的至少一个。流量测量系统包括与科里奥利仪表组合的气体体积分数计。 GVF测量仪测量通过流体传播的声压，以测量通过流体传播的声音Alphamix的速度，以至少计算流体的气体体积分数和/或降低的固有频率。为了确定科里奥利仪表的改进的密度，将计算的气体体积分数和/或降低的频率提供给处理单元。使用分析导出或经验导出的密度校准模型（或因此导出的公式）确定改善的密度，其是测量的固有频率和确定的GVF，降低的频率和声速的至少一个或其任何组合的函数的函数。气体体积分数（GVF）计可以包括具有多个基于应变或压力传感器的传感装置，该传感器沿管道轴向间隔开，用于测量通过流动传播的声压。

56. 发明申请

WO2005003713A3 CONTACT-BASED TRANSDUCERS FOR CHARACTERIZING UNSTEADY PRESSURES IN PIPES 审中-公开
标题翻译：用于表征管道中不适当压力的基于接触器的传感器
公开(公告)号：WO2005003713A3
公开(公告)日：2005-05-06
申请号：PCT/US2004020406
申请日：2004-06-24
申请人： CIDRA CORP
发明人： GYSLING DANIEL L , ENGEL THOMAS W , MARON ROBERT J , CROTEAU PAUL F
IPC分类号： G01F1/74 , G01L9/00 , G01L11/04 , G01L23/00 , G01L23/04
CPC分类号： G01L9/0001 , G01F1/7082 , G01F1/712 , G01F1/74 , G01L23/08
摘要： A sensor head characterizes unsteady pressures in a fluid flowing within a pipe,as may be caused by one or both of acoustic waves propagating through the fluid within the pipe and/or pressure disturbances that convect with the fluid flowing in the pipe. The sensor head comprises a rigid support structure and at least one transducer attached to the rigid support structure. The rigid support structure holds the transducer in contact with an outer surface of the pipe. The at least one transducer senses relative movement between the outer surface of the pipe and the support structure and provides a signal indicative of unsteady pressures within the fluid at a corresponding axial position of the pipe in response to the relative movement. The support structure may be attached to each transducer in an array of transducers, and may include a handle secured thereto for manipulating the sensor head into contact with the pipe. Output signals from the transducers are provided to a processing unit, which processes the output signals to provide a signal indicative of at least one parameter of the flow process.
摘要翻译：传感器头表示在管道内流动的流体中的不稳定压力，这可能由通过管道内的流体传播的声波中的一个或两个和/或与在管道中流动的流体对流的压力扰动引起。传感器头包括刚性支撑结构和附接到刚性支撑结构的至少一个换能器。刚性支撑结构使换能器与管的外表面接触。所述至少一个换能器感测到管的外表面和支撑结构之间的相对运动，并且响应于相对运动而提供指示在管的相应轴向位置处的流体内的不稳定压力的信号。支撑结构可以以换能器阵列附接到每个换能器，并且可以包括固定到其上的手柄，用于操纵传感器头与管接触。来自换能器的输出信号被提供给处理单元，处理单元处理输出信号以提供指示流程过程的至少一个参数的信号。

57. 发明申请

WO2004063675A3 APPARATUS AND METHOD USING AN ARRAY OF ULTRASONIC SENSORS FOR DETERMINING THE VELOCITY OF A FLUID WITHIN A PIPE 审中-公开
标题翻译：使用超声波传感器阵列测定管内流体速度的装置和方法
公开(公告)号：WO2004063675A3
公开(公告)日：2004-12-09
申请号：PCT/US2004000940
申请日：2004-01-13
申请人： CIDRA CORP
发明人： KERSEY ALAN D , GYSLING DANIEL L
IPC分类号： G01F1/66 , G01F1/708 , G01F1/712 , G01F1/74 , G01F23/00 , G01N29/024 , G01N29/032 , G01N29/22 , G01N29/34 , G01P5/24 , G01F1/704
CPC分类号： G01F1/662 , G01F1/666 , G01F1/667 , G01F1/7082 , G01F1/712 , G01F1/74 , G01N29/024 , G01N29/032 , G01N29/222 , G01N29/348 , G01N2291/011 , G01N2291/02408 , G01N2291/02416 , G01N2291/02425 , G01N2291/02836 , G01N2291/102 , G01N2291/106 , G01P5/245
摘要： An apparatus and method for measuring the flow velocity of a fluid flowing through a pipe that includes an array of at least two ultrasonic sensor units (with as many as 16 sensor units) disposed at predetermined locations along the pipe. Each sensor unit includes an ultrasonic transmitter and an ultrasonic receiver. Each sensor unit provides a respective signal indicative of a parameter of the transit time or amplitude of the ultrasonic signal propagating between each respective ultrasonic transmitter and ultrasonic receiver. A signal processor defines a convective ridge in the k-omega plane in response to the ultrasonic signals using an adaptive beamforming algorithm, such as Capon and Music. The signal processor further determines the slope of at least a portion of the convective ridge to determine the flow velocity of the fluid.
摘要翻译：一种用于测量流过管道的流体的流速的装置和方法，所述管道包括设置在沿着管道的预定位置处的至少两个超声波传感器单元（具有多达16个传感器单元）的阵列。每个传感器单元包括超声波发射器和超声波接收器。每个传感器单元提供指示在每个相应的超声波发射器和超声波接收器之间传播的超声波信号的渡越时间或振幅的参数的相应信号。信号处理器使用自适应波束形成算法（例如Capon和Music）响应于超声信号在k-omega平面中定义对流脊。信号处理器进一步确定对流脊的至少一部分的斜率以确定流体的流速。

58. 发明申请

WO2004063741A3 APPARATUS FOR MEASURING PARAMETERS OF A FLOWING MULTIPHASE FLUID MIXTURE 审中-公开
标题翻译：用于测量流动多相流体混合物参数的装置
公开(公告)号：WO2004063741A3
公开(公告)日：2004-09-23
申请号：PCT/US2004000916
申请日：2004-01-13
申请人： CIDRA CORP
发明人： GYSLING DANIEL L
IPC分类号： G01F1/66 , G01F1/74 , G01N29/024 , G01N29/34 , G01N29/02
CPC分类号： G01F1/667 , G01F1/74 , G01N29/024 , G01N29/348 , G01N2291/011 , G01N2291/024 , G01N2291/02408 , G01N2291/02416 , G01N2291/02425 , G01N2291/02836 , G01N2291/02845 , G01N2291/051 , G01N2291/102 , G01N2291/106
摘要： An apparatus (10) is provided that measures the Speed of sound propagating in a multiphase mixture to determine parameters, such as mixture quality, particle size, vapor/mass ratio, liquid/vapor ratio, mass flow rate, enthalpy and volumetric flow rate of the flow in a pipe or unconfined space, for example, using acoustic and/or dynamic pressures. The apparatus includes a pair of ultrasonic transducers disposed axially along the pipe for measuring the transit time of an ultrasonic signal to propagate from one ultrasonic transducer to the other ultrasonic transducer. A signal process, responsive to said transit time signal, provides a signal representative of the speed of sound of the mixture. An SOS processing unit then provides an output signal indicative of at least one Parameter of the mixture flowing through the pipe. The frequency of the ultrasonic signal is sufficiently low to minimize scatter from particle/liquid within the mixture. The frequency based sound speed is determined utilizing a dispersion model to determine the at least one parameter of the fluid flow and/or mixture.
摘要翻译：提供一种装置（10），其测量在多相混合物中传播的声速，以确定诸如混合质量，颗粒尺寸，蒸气/质量比，液体/蒸汽比，质量流量，焓和体积流量之类的参数管道或无侧限的空间中的流动，例如使用声学和/或动态压力。该装置包括一对沿着管道轴向设置的超声波换能器，用于测量超声信号从一个超声波换能器传播到另一个超声换能器的传播时间。响应于所述通过时间信号的信号处理提供表示混合物的声速的信号。然后，SOS处理单元提供指示流过管道的混合物的至少一个参数的输出信号。超声波信号的频率足够低以最小化混合物内的颗粒/液体的散射。使用分散模型来确定基于频率的声速，以确定流体流和/或混合物的至少一个参数。

59. 发明申请

WO2004015377A3 APPARATUS AND METHOD FOR MEASURING MULTI-PHASE FLOWS IN PULP AND PAPER INDUSTRY APPLICATIONS 审中-公开
标题翻译：用于测量纸浆和造纸业应用中多相流动的装置和方法
公开(公告)号：WO2004015377A3
公开(公告)日：2004-06-24
申请号：PCT/US0324943
申请日：2003-08-07
申请人： CIDRA CORP
发明人： GYSLING DANIEL L
IPC分类号： G01F1/66 , G01F1/74 , G01N29/02
CPC分类号： G01F1/668 , G01F1/74 , G01N2291/02836 , G01N2291/02872
摘要： The consistency of a pulp slurry in a pipe (12) is determined using a pair of effective sound speeds a1effand a2effof the fluid/pipe system. The pair of effective system sound speed measurements is taken at two sensing regions X1, X2 along the pipe wherein each of the sensing regions comprises a different system cross sectional area compliance. The pair of effective system sound speeds a1eff and a2eff are provided to signal processing logic (160), which determines at least the composition of the fluid (12) flowing in the pipe (112). The effective system sound speeds a1eff and a2eff may be provided by a pair of sound speed meters positioned at sensing regions X1, X2 wherein the sound speed meters utilize a spatial array of acoustic pressure sensors placed at predetermined axial locations along the pipe (112). One technique uses acoustic spatial array signal processing techniques with the direction of propagation of the acoustic signals along the longitudinal axis of the pipe (112).
摘要翻译：使用流体/管道系统的一对有效声速a1eff和a2eff确定管道（12）中纸浆的稠度。这对有效系统声速测量是在沿着管道的两个感测区域X1，X2处获得的，其中每个感测区域包括不同的系统横截面积顺应性。一对有效系统声速a1eff和a2eff被提供给信号处理逻辑（160），信号处理逻辑（160）至少确定在管（112）中流动的流体（12）的组成。可通过位于感测区域X1，X2处的一对声速仪来提供有效系统声速a1eff和a2eff，其中声速计使用沿着管（112）的预定轴向位置放置的声压传感器的空间阵列。一种技术使用声学空间阵列信号处理技术以及声学信号沿着管道（112）的纵向轴线传播的方向。

60. 发明申请

WO0227364A3 TUNABLE GRATING-BASED DISPERSION COMPENSATOR 审中-公开
标题翻译：基于光刻胶的分散补偿器
公开(公告)号：WO0227364A3
公开(公告)日：2003-03-06
申请号：PCT/US0130216
申请日：2001-09-27
申请人： CIDRA CORP
发明人： PUTNAM MARTIN A , KERSEY ALAN D , BAILEY TIMOTHY J
IPC分类号： G02B6/00 , G02B6/34 , G02B26/00 , G02B6/16
CPC分类号： G02B6/29314 , G02B6/022 , G02B6/02204 , G02B6/29394
摘要： A tunable dispersion compensating device includes a grating element (102) in the form of a bulk or large diameter waveguide, having an outer cladding (104) disposed about an inner core (106). The grating element may be etched, grounded or machined to form a generally "dog bone" shape, wherein the end portions (108) of the grating element has a larger diameter than the center portion (110) disposed therebetween. A chirped grating (112) is written or impressed within the portion of the core disposed in the center portion of the grating element. The center portion is tapered to allow different stresses to be applied along the grating length when the grating element is compressed longitudinally by force F, and thereby vary chirp of the grating to tunable compensate for dispersion.
摘要翻译：可调色散补偿装置包括呈大体积或大直径波导形式的光栅元件（102），其具有围绕内芯（106）设置的外包层（104）。光栅元件可以被蚀刻，接地或机加工以形成大致“狗骨”形状，其中光栅元件的端部部分（108）具有比设置在其间的中心部分（110）更大的直径。啁啾光栅（112）被写入或印在设置在光栅元件的中心部分的芯部分内。中心部分是锥形的，以允许当光栅元件被力F纵向压缩时沿着光栅长度施加不同的应力，从而使光栅的啁啾变化以可调谐补偿分散。

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