公开(公告)号：US20080208483A1

公开(公告)日：2008-08-28

申请号：US12035826

申请日：2008-02-22

申请人： Douglas H. Loose ,  Daniel L. Gysling

发明人： Douglas H. Loose ,  Daniel L. Gysling

IPC分类号： G01N31/00 ,  G01N29/024 ,  G01F1/00

CPC分类号： G01N29/024 ,  G01F1/666 ,  G01F1/712 ,  G01F15/024 ,  G01N2291/02836 ,  G01N2291/02872

摘要： An apparatus and method for identifying one or more fluid products flowing within a pipe are provided having a flow meter mounted on the pipe and a processing unit. The flow meter has a plurality of sensors operable to detect vortical disturbances flowing with the fluid products and acoustic waves propagating through the fluid. The sensors produce signals indicative of the vortical disturbances and acoustic waves. The processing unit is operable to determine the speed of sound and volumetric flow rate of the one or more fluid products using the signals from the flow meter. The processing unit includes a database having speed of sound data for a predetermined group of products. The processing unit is operable to identify the type of each product flowing within the pipe given a temperature and pressure value of the products within the pipe.

摘要翻译： 提供了一种用于识别在管道内流动的一种或多种流体产品的装置和方法，其具有安装在管道上的流量计和处理单元。 流量计具有多个传感器，其可操作以检测随流体产物流动的涡流干扰和通过流体传播的声波。 传感器产生指示涡旋干扰和声波的信号。 处理单元可操作以使用来自流量计的信号确定一个或多个流体产品的声速和体积流量。 处理单元包括具有用于预定组的产品的声音数据的速度的数据库。 处理单元可操作以鉴定管道内的产品的温度和压力值，在管道内流动的每个产品的类型。

公开(公告)号：US07359803B2

公开(公告)日：2008-04-15

申请号：US10349716

申请日：2003-01-23

申请人： Daniel L. Gysling ,  Douglas H. Loose

发明人： Daniel L. Gysling ,  Douglas H. Loose

IPC分类号： G01N31/00

CPC分类号： G01F1/74 ,  G01F1/666 ,  G01F1/668 ,  G01F1/7082 ,  G01F1/712 ,  G01N2291/02836 ,  G01N2291/02872

摘要： An apparatus 10,70 and method is provided that includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations X1-XN disposed axially along a pipe 14 for measuring at least one parameter of a solid particle/fluid mixture 12 flowing in the pipe 14. The pressure sensors 15-18 provide acoustic pressure signals P1(t)-PN(t) to a signal processing unit 30 which determines the speed of sound amix of the particle/fluid mixture 12 in the pipe 14 using acoustic spatial array signal processing techniques. The primary parameters to be measured include fluid/particle concentration, fluid/particle mixture volumetric flow, and particle size. Frequency based sound speed is determined utilizing a dispersion model to determine the parameters of interest.

摘要翻译： 提供了一种装置10,70和方法，其包括放置在沿着管道轴向设置的预定轴向位置X 1-N N N的非稳态压力传感器15-18的空间阵列 14，用于测量在管14中流动的固体颗粒/流体混合物12的至少一个参数。 压力传感器15-18向信号处理单元30提供声压信号P 1（t）-P N N（t），该信号处理单元30确定声速a _{。 要测量的主要参数包括流体/颗粒浓度，流体/颗粒混合物体积流量和颗粒大小。 使用色散模型确定基于频率的声速，以确定感兴趣的参数。}

公开(公告)号：US07171315B2

公开(公告)日：2007-01-30

申请号：US10997632

申请日：2004-11-24

申请人： Douglas H. Loose

发明人： Douglas H. Loose

IPC分类号： G01F1/00 ,  G01F7/00 ,  G06F19/00

CPC分类号： G01F1/3254

摘要： A parameter of a fluid passing through a pipe is measured using a spatial array of sensors disposed at different axial locations along the pipe. The spatial array includes at least two overlapping sub-arrays. Using the pressure signals, a signal processor determines a spatial correlation matrix for each of the sub arrays. The spatial correlation matrices from the sub-arrays are averaged, and the averaged spatial correlation matrix is used as input to an adaptive array processing algorithm. The pipe may be open ended such that it can be positioned within the fluid flow for forming a portion of a sensing device.

摘要翻译： 通过设置在沿着管的不同轴向位置的传感器的空间阵列测量通过管道的流体的参数。 空间阵列包括至少两个重叠的子阵列。 使用压力信号，信号处理器确定每个子阵列的空间相关矩阵。 对子阵列的空间相关矩阵进行平均，并将平均空间相关矩阵作为自适应阵列处理算法的输入。 管可以是敞开的，使得其可以定位在流体流动内以形成感测装置的一部分。

公开(公告)号：US07165464B2

公开(公告)日：2007-01-23

申请号：US10766440

申请日：2004-01-27

申请人： Daniel L. Gysling ,  Douglas H. Loose

发明人： Daniel L. Gysling ,  Douglas H. Loose

IPC分类号： G01F1/34 ,  G01N29/00

CPC分类号： G01F1/7082 ,  G01F1/74 ,  G01N22/00 ,  G01N33/343 ,  G01N2291/02433 ,  G01N2291/02836 ,  G01N2291/02872

摘要： A apparatus 10,110 is provided that measures the speed of sound and/or vortical disturbances propagating in a fluid or mixture having entrained gas/air to determine the gas volume fraction of the flow 12 propagating through a pipes and compensating or correcting the volumetric flow measurement for entrained air. The GVF meter includes and array of sensor disposed axially along the length of the pipe. The GVF measures the speed of sound propagating through the pipe and fluid to determine the gas volume fraction of the mixture using array processing. The GVF meter can be used with an electromagnetic meter and a consistency meter to compensate for volumetric flow rate and consistency measurement respective, to correct for errors due to entrained gas/air.

摘要翻译： 提供了一种装置10,110，其测量在具有夹带的气体/空气的流体或混合物中传播的声速和/或涡旋扰动的速度，以确定通过管道传播的流12的气体体积分数，并补偿或校正体积流量测量值 夹带空气 GVF计量器包括沿着管道的长度轴向设置的传感器阵列。 GVF测量通过管道和流体传播的声音的速度，以使用阵列处理来确定混合物的气体体积分数。 GVF仪表可与电磁表和一致性表一起使用，以补偿体积流量和一致性测量，以纠正由于夹带的气体/空气引起的错误。

公开(公告)号：US07123833B2

公开(公告)日：2006-10-17

申请号：US10216000

申请日：2002-08-08

申请人： Paul Szczepanek ,  Jay W. Dawson ,  John A. Moon ,  Michael A. Davis

发明人： Paul Szczepanek ,  Jay W. Dawson ,  John A. Moon ,  Michael A. Davis

IPC分类号： H04B10/08

CPC分类号： H04J14/0221 ,  H04B10/0797

摘要： A smart node is provided for use in an optical communications network wherein the smart node comprising dynamically reconfigurable optical signal manipulation devices in combination with sensing devices and processors to provide real time closed and open loop control of various channels of the network.

公开(公告)号：US07019883B2

公开(公告)日：2006-03-28

申请号：US10115647

申请日：2002-04-03

申请人： John Moon ,  Alan D. Kersey ,  James Sirkis ,  James Dunphy ,  Joseph Pinto ,  Paul Szczepanek ,  Michael Davis

发明人： John Moon ,  Alan D. Kersey ,  James Sirkis ,  James Dunphy ,  Joseph Pinto ,  Paul Szczepanek ,  Michael Davis

IPC分类号： G02B26/00

CPC分类号： G02B6/4246 ,  G02B6/262 ,  G02B6/266 ,  G02B6/2713 ,  G02B6/272 ,  G02B6/278 ,  G02B6/2793 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29314 ,  G02B6/29395 ,  G02B6/29398 ,  G02B6/3516 ,  G02B6/356 ,  G02B6/3588 ,  G02B6/359 ,  G02B6/4226 ,  G02B26/0833 ,  G02B26/0841 ,  G02B27/1006 ,  G02B27/1073 ,  G02B27/108 ,  G02B27/1086 ,  G02B27/126 ,  G02B27/144 ,  G02B27/147 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0221 ,  H04Q2011/0009 ,  H04Q2011/0026

摘要： An dynamic optical filter 10 is provided to selectively attenuate or filter a wavelength band(s) of light (i.e., optical channel(s)) or a group(s) of wavelength bands of an optical WDM input signal 12. The optical filter is controllable or programmable to selectively provide a desired filter function. The optical filter 10 includes a spatial light modulator 36, which comprises an array of micromirrors 52 that effectively forms a two-dimensional diffraction grating mounted in a retro-reflecting configuration. Each optical channel 14 is dispersed separately or overlappingly onto the array of micro-mirrors 52 along a spectral axis or direction 55 such that each optical channel or group of optical channels are spread over a plurality of micromirrors to effectively pixelate each of the optical channels or input signal. Each channel 14 or group of channels may be selectively attenuated by flipping or tilting a selected number of micromirrors to thereby deflect a portion of the incident radiation away from the return optical path. The micro-mirrors operate in a digital manner by flipping between a first and second position in response to a control signal 56 provided by a controller 58 in accordance with an attenuation algorithm and an input command 60. The switching algorithm may provide a bit (or pixel) map or look-up table indicative of the state of each of the micro-mirrors 52 of the array to selectively attenuate the input signal and provide a modified output signal 38 at optical fiber 40.

公开(公告)号：US07006206B2

公开(公告)日：2006-02-28

申请号：US10427712

申请日：2003-05-01

申请人： D. Ralph Jones ,  David G. Bellemore

发明人： D. Ralph Jones ,  David G. Bellemore

IPC分类号： G01N21/00

CPC分类号： G02B6/4215 ,  G02B6/2931 ,  G02B6/29385

摘要： A method and apparatus is provided for detecting peaks in an optical signal. The method comprises the three basic steps of: (1) sampling the optical signal to obtain sampled data containing information about the optical signal; (2) applying a cross-correlation filter on the sampled data to obtain cross-correlated data containing information about one or more peaks in the optical signal; and (3) detecting the one or more peaks in the optical signal based on the cross-correlation data. In one embodiment, the cross-correlation filter has an average value that is less than zero. The step of applying the cross-correlation filter includes reducing random noise present in the sampled data to remove quasi-dc components from the sampled data.

摘要翻译： 提供了一种用于检测光信号中的峰值的方法和装置。 该方法包括以下三个基本步骤：（1）对光信号进行采样以获得包含关于光信号的信息的采样数据; （2）对采样数据应用互相关滤波器以获得包含关于光信号中的一个或多个峰值的信息的交叉相关数据; 和（3）基于互相关数据检测光信号中的一个或多个峰值。 在一个实施例中，互相关滤波器具有小于零的平均值。 应用互相关滤波器的步骤包括减少采样数据中存在的随机噪声，以从采样数据中去除准直流分量。

公开(公告)号：US06988411B2

公开(公告)日：2006-01-24

申请号：US10842068

申请日：2004-05-10

申请人： Daniel L. Gysling ,  Alan D. Kersey ,  James D. Paduano

发明人： Daniel L. Gysling ,  Alan D. Kersey ,  James D. Paduano

IPC分类号： G01N29/00

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： In industrial sensing applications 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 determine 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. The sensor may also be combined with an instrument, an opto-electronic converter and a controller in an industrial process control system.

摘要翻译： 在工业感测应用中，使用放置在沿着管12的预定轴向位置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提供声压信号P 1（t），P 2（t），P 3（t） 在线20,22,24上，其被提供给信号处理逻辑60，信号处理逻辑60使用声学空间阵列信号处理技术确定管12中的流体（或混合物）的声音混合速度， 声信号沿着管12的纵向轴线传播的方向。 可以采用许多空间阵列处理技术来确定混音的声速。 逻辑48被提供给逻辑48，逻辑48计算混合物的组成百分比，例如水分或混合物的任何其它参数或与声音相关的流体 加速_{混合。 逻辑60还可以确定流体的马赫数Mx。 测量的声压信号P 1（t），P 2（t），P 3（t）是较低的频率（和较长的波长 ）信号比用于超声波流量计的信号，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。 传感器还可以与工业过程控制系统中的仪器，光电转换器和控制器组合。}

公开(公告)号：US06959604B2

公开(公告)日：2005-11-01

申请号：US10224821

申请日：2002-08-21

申请人： Rebecca S. Bryant ,  Daniel L. Gysling ,  Charles R. Winston ,  Allen R. Davis ,  John M. Faustino

发明人： Rebecca S. Bryant ,  Daniel L. Gysling ,  Charles R. Winston ,  Allen R. Davis ,  John M. Faustino

IPC分类号： G01L1/00 ,  E21B47/06 ,  G01L1/24 ,  G01L11/02 ,  G01L9/00

CPC分类号： E21B47/06 ,  G01L1/246 ,  G01L11/025

摘要： A fiber optic pressure sensor for measuring unsteady pressures within a pipe include at least one optical fiber disposed circumferentially around a portion of a circumference of the pipe, which provides an optical signal indicative of the length of the optical fiber. An optical instrument measures the change in length of the optical fiber to determine the unsteady pressure within the pipe. The pressure sensor may include a plurality of optical fiber sections disposed circumferentially around a portion of the circumference of the pipe that are optically connected together by optical fiber sections disposed axially along the pipe. The optical fiber sections may include fiber Bragg gratings having substantially the same or different reflection wavelengths to permit for example the sensors to be axially distributed along the fiber using wavelength division multiplexing and/or time division multiplexing.

摘要翻译： 用于测量管道内的不稳定压力的光纤压力传感器包括至少一个围绕管道的圆周部分周向设置的光纤，其提供指示光纤长度的光学信号。 光学仪器测量光纤的长度变化，以确定管内的不稳定压力。 压力传感器可以包括围绕管的圆周的一部分周向设置的多个光纤段，其通过沿着管轴向设置的光纤段光学连接在一起。 光纤部分可以包括具有基本上相同或不同的反射波长的光纤布拉格光栅，以允许例如传感器使用波分复用和/或时分复用沿光纤轴向分布。

公开(公告)号：US06956687B2

公开(公告)日：2005-10-18

申请号：US10327695

申请日：2002-12-19

申请人： John A. Moon ,  Alan D. Kersey ,  James S. Sirkis ,  James R. Dunphy ,  Joseph Pinto ,  Paul Szczepanek ,  Michael A. Davis ,  Martin A. Putnam

发明人： John A. Moon ,  Alan D. Kersey ,  James S. Sirkis ,  James R. Dunphy ,  Joseph Pinto ,  Paul Szczepanek ,  Michael A. Davis ,  Martin A. Putnam

IPC分类号： G02B6/26 ,  G02B6/34 ,  G02B6/42 ,  G02B26/08 ,  G02B27/10 ,  H04J14/02 ,  H04Q11/00 ,  G02B26/00

CPC分类号： G02B6/29394 ,  G01J3/021 ,  G01J3/0229 ,  G02B6/262 ,  G02B6/266 ,  G02B6/4226 ,  G02B26/0833 ,  G02B26/0841 ,  G02B27/1086 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0221 ,  H04Q2011/0009 ,  H04Q2011/0026 ,  Y10S359/904

摘要： A reconfigurable optical blocking filter deletes a desired optical channel(s) from an optical WDM input signal, and includes a spatial light modulator having a micro-mirror device with a two-dimensional array of micro-mirrors that tilt between first and second positions in a “digital” fashion in response to a control signal provided by a controller in accordance with a switching algorithm and an input command. A collimators, diffraction grating, and Fourier lens, collectively collimate, separate and focus the optical input channels onto the array of micro-mirrors. The optical channel is focused on the micro-mirrors onto a plurality of micro-mirrors of the micro-mirror device, which effectively pixelates the optical channels. To delete an input channel of the optical input signal, micro-mirrors associated with each desired input channel are tilted to reflect the desired input channel away from the return path.

摘要翻译： 可重构光阻断滤波器从光WDM输入信号中删除期望的光信道，并且包括具有微镜装置的空间光调制器，该微镜装置具有在第一和第二位置之间倾斜的微镜的二维阵列 响应于由控制器根据切换算法和输入命令提供的控制信号的“数字”方式。 准直仪，衍射光栅和傅立叶透镜共同校准，分离并将光学输入通道聚焦到微镜阵列上。 光通道聚焦在微镜上到微镜装置的多个微反射镜上，这有效地像化了光通道。 为了删除光输入信号的输入通道，与每个期望的输入通道相关联的微反射镜被倾斜以反射所需的输入通道远离返回路径。