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1. 发明授权

US07146864B2 Apparatus having a multi-band sensor assembly for measuring a parameter of a fluid flow flowing within a pipe 有权
标题翻译：具有用于测量在管内流动的流体流的参数的多波段传感器组件的装置
公开(公告)号：US07146864B2
公开(公告)日：2006-12-12
申请号：US10795111
申请日：2004-03-04
申请人： James Sullivan , Timothy J. Bailey , Michael A. Davis , Mark R. Fernald , Richard Niezgorski
发明人： James Sullivan , Timothy J. Bailey , Michael A. Davis , Mark R. Fernald , Richard Niezgorski
IPC分类号： G01F1/34
CPC分类号： G01F1/74 , G01F1/662 , G01F1/666 , G01F1/7082
摘要： An apparatus 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 used to measure the acoustic and convective pressure variations in the flow to determine a desired parameter. The sensing device includes a unitary strap having a plurality of bands disposed parallel to each other. The bands are interconnected by cross members to maintain the bands a predetermined distance apart. Each of the bands having a strip of piezoelectric film material mounted along a substantial length of the bands. The piezoelectric film material provides a signal indicative of the unsteady pressures within the pipe. The sensing device includes a conductive shield around the multi-band strap and the piezoelectric film material to provide a grounding shield.
摘要翻译：一种装置测量在流体流中传播的声音和/或涡流干扰的速度以确定通过管道传播的流的参数。该装置包括感测装置，其包括用于测量流中的声学和对流压力变化的压力传感器阵列，以确定期望的参数。感测装置包括具有彼此平行布置的多个带的整体带。带通过横向构件相互连接，以将带保持预定距离。每个带具有沿带的相当长度安装的压电薄膜材料条。压电膜材料提供指示管内不稳定压力的信号。感测装置包括围绕多带带的导电屏蔽和压电膜材料以提供接地屏蔽。

2. 发明申请

US20130192351A1 METHOD AND APPARATUS FOR DETERMINING GVF (GAS VOLUME FRACTION) FOR AERATED FLUIDS AND LIQUIDS IN FLOTATION TANKS, COLUMNS, DRUMS, TUBES, VATS 审中-公开
标题翻译：用于确定浮选罐，柱，管，管，增值税中的用于流化床和液体的GVF（气体体积分数）的方法和装置
公开(公告)号：US20130192351A1
公开(公告)日：2013-08-01
申请号：US13583062
申请日：2011-03-09
申请人： Mark R. Fernald , Timothy J. Bailey , Douglas H. Loose , James M. Sullivan , John Biesak , Alan D. Kersey , Michael A. Davis
发明人： Mark R. Fernald , Timothy J. Bailey , Douglas H. Loose , James M. Sullivan , John Biesak , Alan D. Kersey , Michael A. Davis
IPC分类号： G01N29/02
CPC分类号： G01N29/02 , B03D1/028 , G01F1/7082 , G01F1/712 , G01F1/74 , G01L11/04 , G01N29/024 , G01N2291/011 , G01N2291/02433
摘要： The invention provides a signal processor that receives a signal containing information about an acoustic signal that is generated by at least one acoustic transmitter, that travels through an aerated fluid in a container, and that is received by at least one acoustic receiver arranged in relation to the container, including inside the container; and determines the gas volume fraction of the aerated fluid based at least partly on the speed of sound measurement of the acoustic signal that travels through the aerated fluid in the container. The signal processor also sends an output signal containing information about the gas volume fraction of the aerated fluid. The signal processor may be configured together with at least one acoustic transmitter, the at least one acoustic receiver, or both.
摘要翻译：本发明提供了一种信号处理器，其接收包含由至少一个声发射器产生的声信号的信号，所述信号传播通过容器中的充气流体，并且由至少一个声接收器接收，所述至少一个声接收器相对于容器，包括在容器内; 并且至少部分地基于穿过容器中的充气流体的声信号的声音测量速度来确定充气流体的气体体积分数。信号处理器还发送包含关于充气流体的气体体积分数的信息的输出信号。信号处理器可以与至少一个声发射器，至少一个声接收器或两者配置。

3. 发明申请

US20110056298A1 FLOW AND PIPE MANAGEMENT USING VELOCITY PROFILE MEASUREMENT AND/OR PIPE WALL THICKNESS AND WEAR MONITORING 有权
标题翻译：流量和管道管理使用速度曲线测量和/或管壁厚度和磨损监测
公开(公告)号：US20110056298A1
公开(公告)日：2011-03-10
申请号：US12922261
申请日：2009-03-16
申请人： Christian Victor O'keefe , Robert J. Maron , Mark R. Fernald , Timothy J. Bailey , Alex M. Van der Spek , Michael A. Davis , John V. Viega
发明人： Christian Victor O'keefe , Robert J. Maron , Mark R. Fernald , Timothy J. Bailey , Alex M. Van der Spek , Michael A. Davis , John V. Viega
IPC分类号： G01N29/04
CPC分类号： G01N29/04 , G01B17/02 , G01N29/2437
摘要： The present invention provides new techniques for non-invasive and real-time measurement of the velocity profile of slurry flow in horizontal pipes, as well as the measurement and trending of pipe wear on slurry lines. In the first case, this information can be used to determine the approach and onset of solid deposition on the bottom of the pipe. Having this information in real time can enable operation at lower velocities or higher solids concentration or both while avoiding solids deposition or plugging and their associated operational costs. In the second case, the present invention uses a permanently or semi-permanently installed ring of conformable ultrasonic transducers clamped onto the outside of the pipe. These transducers are used to measure the thickness of the pipe under their respective locations.
摘要翻译：本发明提供了用于非侵入式和实时测量水平管道中浆料流速度分布的新技术，以及浆料管线上管道磨损的测量和趋势。在第一种情况下，该信息可用于确定管道底部固体沉积的方法和开始。实时获得这些信息可以使运行速度更低，固体浓度更高，同时避免固体沉积或堵塞及其相关的运营成本。在第二种情况下，本发明使用永久地或半永久地安装的适配超声波换能器的环夹在管的外部。这些传感器用于测量管道在各自位置下的厚度。

4. 发明授权

US06519388B1 Tube-encased fiber grating 有权
标题翻译：管状光纤光栅
公开(公告)号：US06519388B1
公开(公告)日：2003-02-11
申请号：US09455865
申请日：1999-12-06
申请人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , Michael A. Davis , Peter Ogle , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
发明人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , Michael A. Davis , Peter Ogle , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
IPC分类号： G02B634
CPC分类号： G02B6/022 , G02B6/0218
摘要： A tube-encased fiber grating includes an optical fiber 10 having at least one Bragg grating 12 impressed therein which is embedded within a glass capillary tube 20. Light 14 is incident on the grating 12 and light 16 is reflected at a reflection wavelength &lgr;1. The shape of the tube 20 may be other geometries (e.g., a “dogbone” shape) and/or more than one concentric tube may be used or more than one grating or pair of gratings may be used. The fiber 10 may be doped at least between a pair of gratings 150,152, encased in the tube 20 to form a tube-encased compression-tuned fiber laser or the grating 12 or gratings 150,152 may be constructed as a tunable DFB fiber laser encased in the tube 20. Also, the tube 20 may have an inner region 22 which is tapered away from the fiber 10 to provide strain relief for the fiber 10, or the tube 20 may have tapered (or fluted) sections 27 which have an outer geometry that decreases down to the fiber 10 and provides added fiber pull strength. Also, the tube-encased grating 12 exhibits lower mode coupling from the fiber core to the cladding modes due to the increased diameter of the cladding where the tube 20 is fused to the fiber 10 where the grating is located 12.
摘要翻译：管状光纤光栅包括光纤10，其具有嵌入其中的至少一个布拉格光栅12，该布拉格光栅12嵌入玻璃毛细管20内。光14入射到光栅12上，光16以反射波长lambd1反射。管20的形状可以是其他几何形状（例如，“狗骨”形状）和/或可以使用多于一个的同心管，或者可以使用多于一个的光栅或一对光栅。纤维10可以至少掺杂在一对光栅150,152之间，封装在管20中以形成管封装的压缩调谐光纤激光器，或者光栅12或光栅150,152可被构造为包含在该光纤12中的可调DFB光纤激光器。管20也可以具有内部区域22，该内部区域22远离纤维10逐渐变细，以为纤维10提供应变消除，或者管20可以具有锥形（或凹槽）部分27，其具有外部几何形状降低到纤维10并提供增加的纤维拉伸强度。此外，由于包层的直径增加，管20被熔合到光栅位于12处的光纤10，管状光栅12表现出从纤维芯到包层模式的较低模式耦合。

5. 发明授权

US07474966B2 Apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe 有权
标题翻译：具有用于测量管道内的工艺流程的参数的压电膜传感器阵列的装置
公开(公告)号：US07474966B2
公开(公告)日：2009-01-06
申请号：US11521627
申请日：2006-09-14
申请人： Mark R. Fernald , Michael A. Davis , Alan D. Kersey , Douglas Loose , Timothy J. Bailey
发明人： Mark R. Fernald , Michael A. Davis , Alan D. Kersey , Douglas Loose , Timothy J. Bailey
IPC分类号： G06F19/00
CPC分类号： G01F1/712 , G01F1/74
摘要： A apparatus 10,110,170 is provided that measures the speed of sound and/or vortical disturbances propagating in a single phase fluid flow and/or 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, by measuring acoustic and/or dynamic pressures. The apparatus includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations x1-xN disposed axially along 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 propagating through of the process flow 12 flowing in the pipe 14. The pressure sensors are piezoelectric film sensors that are mounted or clamped onto the outer surface of the pipe at the respective axial location.
摘要翻译：提供了一种装置10,110,170，其测量在单相流体流和/或多相混合物中传播的声速和/或涡流干扰的速度，以确定参数，例如混合质量，粒度，蒸气/质量比，液体/蒸气比，质量流量，管道中流量的焓和体积流量，通过测量声学和/或动态压力。该装置包括放置在沿管14轴向设置的预定轴向位置x1-xN处的不稳定压力传感器15-18的空间阵列。压力传感器15-18向信号提供声压信号P1（t）-PN（t）处理单元30，其确定在管14中流动的工艺流程12传播的声音amix的速度。压力传感器是压电膜传感器，其在相应的轴向位置处安装或夹紧在管的外表面上。

6. 发明授权

US07062126B2 Tunable optical filter having large diameter optical waveguide with bragg grating and being configured for reducing the bulk modulus of compressibility thereof 有权
标题翻译：具有布拉格光栅的具有大直径光波导的可调谐滤光器，并且被配置为减小其压缩率的体积弹性模量
公开(公告)号：US07062126B2
公开(公告)日：2006-06-13
申请号：US10453880
申请日：2003-06-02
申请人： Alan D. Kersey , Mark R. Fernald , Timothy J. Bailey , Michael A. Davis , Thomas W. Engel , Robert N. Brucato , Richard T. Jones , Trevor W. MacDougall , Matthew B. Miller , Paul E. Sanders , James S. Sirkis , James M. Sullivan , Martin A. Putnam
发明人： Alan D. Kersey , Mark R. Fernald , Timothy J. Bailey , Michael A. Davis , Thomas W. Engel , Robert N. Brucato , Richard T. Jones , Trevor W. MacDougall , Matthew B. Miller , Paul E. Sanders , James S. Sirkis , James M. Sullivan , Martin A. Putnam
IPC分类号： G02B6/34
CPC分类号： G02B6/024 , B29D11/00721 , C03B37/01211 , C03B37/0122 , C03B37/01222 , C03B2203/14 , C03B2203/16 , C03B2203/34 , G01D5/35303 , G01D5/35383 , G01L1/246 , G01L11/025 , G02B6/02042 , G02B6/021 , G02B6/0218 , G02B6/022 , G02B6/02385 , G02B6/0239
摘要： A tunable optical filter has a large diameter cane waveguide with “side-holes” in the cane cross-section that reduce the force required to compress the large diameter optical waveguide without overly compromising the buckling strength thereof. The large diameter optical waveguide has a cross-section of at least about 0.3 millimeters, including at least one inner core, a Bragg grating arranged therein, a cladding surrounding the inner core, and a structural configuration for providing a reduced bulk modulus of compressibility and maintaining the anti-buckling strength of the large diameter optical waveguide. The structural configuration reduces the cross-sectional area of the large diameter optical waveguide. These side holes reduce the amount of glass that needs to be compressed, but retains the large diameter.
摘要翻译：可调谐滤光器具有在拐杖横截面中具有“侧孔”的大直径拐杖波导，其减小压缩大直径光波导所需的力而不会过度损害其屈曲强度。大直径光波导具有至少约0.3毫米的横截面，包括至少一个内芯，布置在其中的布拉格光栅，围绕内芯的包层，以及用于提供减小的压缩弹性模量的结构构造，以及保持大直径光波导的抗弯曲强度。结构构造减小了大直径光波导的横截面积。这些侧孔减少了需要压缩的玻璃量，但是保留了大直径。

7. 发明授权

US06865194B1 Strain-isolated Bragg grating temperature sensor 有权
标题翻译：应变隔离布拉格光栅温度传感器
公开(公告)号：US06865194B1
公开(公告)日：2005-03-08
申请号：US09455866
申请日：1999-12-06
申请人： Christopher J. Wright , Mark R. Fernald , Timothy J. Bailey , James M. Sullivan , James R. Dunphy , Michael A. Davis , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
发明人： Christopher J. Wright , Mark R. Fernald , Timothy J. Bailey , James M. Sullivan , James R. Dunphy , Michael A. Davis , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
IPC分类号： G01K11/32 , H01S3/30 , G01N21/00
CPC分类号： G01K11/32
摘要： A strain-isolated bragg grating temperature sensor includes an optical sensing element 20,600 which includes an optical fiber 10 having at least one Bragg grating 12 disposed therein which is encased within and fused to at least a portion of a glass capillary tube 20 and/or a large diameter waveguide grating 600 having a core and a wide cladding and having the grating 12 disposed therein, which senses temperature changes but is substantially not sensitive to strains on the element caused by the fiber or other effects. Light 14 is incident on the grating 12 and light 16 is reflected at a reflection wavelength λ1. The shape of the sensing element 20,600 may be other geometries and/or more than one concentric tube may be used or more than one grating or pair of gratings may be used or more than one fiber or optical core may be used. At least a portion of the element 20,600 may be doped between a pair of gratings 150,152, disposed therein to form a temperature tunable laser or the grating 12 or gratings 150,152 may be constructed as a temperature tunable DFB laser disposed in the element. Also, the element may have an inner or outer tapered regions 22,27, respectively, to provide strain relief and/or added pull strength for the fiber 10. Further, the fiber 10 and the tube 20 may be made of different coefficients of thermal expansion for increased sensitivity.
摘要翻译：应变隔离布拉格光栅温度传感器包括光学传感元件20,600，光学传感元件20,600包括光纤10，该光纤10具有布置在其中的至少一个布拉格光栅12，该布拉格光栅12被封装在玻璃毛细管20的至少一部分内并且熔合到玻璃毛细管20和/ 大直径波导光栅600具有芯和宽包层并且其中布置有光栅12，其感测温度变化，但对由纤维或其它效应引起的元件上的应变基本上不敏感。光14入射在光栅12上，光16以反射波长λ1反射。感测元件20,600的形状可以是其他几何形状，和/或可以使用多于一个的同心管，或者可以使用多于一个的光栅或一对光栅，或者可以使用多于一个的光纤或光纤。元件20,600的至少一部分可以被掺杂在放置在其中的一对光栅150,152之间以形成温度可调激光器，或者光栅12或光栅150,152可以被构造为设置在元件中的温度可调谐DFB激光器。此外，元件可以分别具有内部或外部锥形区域22,27，以为纤维10提供应变消除和/或增加的拉伸强度。此外，纤维10和管子20可以由不同的热系数扩大灵敏度提高。

8. 发明授权

US06820489B2 Optical differential pressure sensor 有权
公开(公告)号：US06820489B2
公开(公告)日：2004-11-23
申请号：US10646368
申请日：2003-08-22
申请人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , James R. Dunphy , Michael A. Davis , Christopher J. Wright , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
发明人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , James R. Dunphy , Michael A. Davis , Christopher J. Wright , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
IPC分类号： G01L900
CPC分类号： G01L11/025
摘要： A fiber grating pressure sensor includes an optical sensing element which includes an optical fiber having a Bragg grating impressed therein which is encased within and fused to at least a portion of a glass capillary tube and/or a large diameter waveguide grating having a core and a wide cladding. Light is incident on the grating and light is reflected from the grating at a reflection wavelength &lgr;1. The sensing element may be used by itself as a sensor or located within a housing. When external pressure P increases, the grating is compressed and the reflection wavelength &lgr;1 changes. The shape of the sensing element may have other geometries, e.g., a “dogbone” shape, so as to enhance the sensitivity of shift in &lgr;1 due to applied external pressure and may be fused to an outer shell.

9. 发明授权

US06597711B2 Bragg grating-based laser 有权
公开(公告)号：US06597711B2
公开(公告)日：2003-07-22
申请号：US10146773
申请日：2002-05-16
申请人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , Michael A. Davis , Robert N. Brucato , Martin A. Putnam , Alan D. Kersey , Paul E. Sanders , Jon T. Kringlebotn
发明人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , Michael A. Davis , Robert N. Brucato , Martin A. Putnam , Alan D. Kersey , Paul E. Sanders , Jon T. Kringlebotn
IPC分类号： H01S310
CPC分类号： H01S3/0675 , G02B6/0218 , G02B6/022 , G02F1/0115 , G02F1/0128 , G02F2201/307 , H01S3/0635 , H01S3/08009 , H01S3/1055
摘要： A compression-tuned Bragg grating-based laser 800 includes a pair of optical grating elements 802,804 wherein at least one of the grating elements is tunable by a compression device 812,814. The grating elements may include either an optical fiber 10 having at least one Bragg grating 12 impressed therein encased within and fused to at least a portion of a glass capillary tube 20 or a large diameter waveguide grating element 600 having a core and a wide cladding. The tunable grating element(s) 802,804 are axially compressed, which causes a shift in the reflection wavelength of the gratings 807,809 without buckling the element. The shape of the element may be other geometries (e.g., a “dogbone” shape) and/or more than one grating or pair of gratings may be used and more than one fiber 10 or core 612 may be used. A gain element, such as Erbium doped fiber, is optical disposed between the grating elements to provide the lasing cavity.

10. 发明授权

US06422084B1 Bragg grating pressure sensor 有权
标题翻译：布拉格光栅压力传感器
公开(公告)号：US06422084B1
公开(公告)日：2002-07-23
申请号：US09455867
申请日：1999-12-06
申请人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , James R. Dunphy , Michael A. Davis , Christopher J. Wright , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
发明人： Mark R. Fernald , Timothy J. Bailey , Matthew B. Miller , James M. Sullivan , James R. Dunphy , Michael A. Davis , Christopher J. Wright , Alan D. Kersey , Martin A. Putnam , Robert N. Brucato , Paul E. Sanders
IPC分类号： G01L900
CPC分类号： G01L11/025
摘要： A fiber grating pressure sensor includes an optical sensing element 20, 600 which includes an optical fiber 10 having a Bragg grating 12 impressed therein which is encased within and fused to at least a portion of a glass capillary tube 20 and/or a large diameter waveguide grating 600 having a core and a wide cladding and which has an outer transverse dimension of at least 0.3 mm. Light 14 is incident on the grating 12 and light 16 is reflected from the grating 12 at a reflection wavelength &lgr;1. The sensing element 20, 600 may be used by itself as a sensor or located within a housing 48, 60, 90, 270, 300. When external pressure P increases, the grating 12 is compressed and the reflection wavelength &lgr;1 changes. The shape of the sensing element 20, 600 may have other geometries, e.g., a “dogbone” shape, so as to enhance the sensitivity of shift in &lgr;1 due to applied external pressure and may be fused to an outer shell 50. At least a portion of the sensing element may be doped between a pair of gratings 150, 152, to form a compression-tuned laser or the grating 12 or gratings 150, 152 may be constructed as a tunable DFB laser. Also, the axial ends of element 20, 600 where the fiber 10 exits the tube 20 may have an inner tapered region 22 and/or a protruding tapered (or fluted) axial section 27 to provide strain relief or improved pull strength for the fiber 10. A temperature grating 270 may be used to measure temperature and allow for a temperature-corrected pressure measurement. The sensor may be suspended within an outer housing 112, by a fluid, spacers, or other means. The invention may also be used as a force transducer.
摘要翻译：光纤光栅压力传感器包括光学感测元件20,600，光学传感元件20,600包括光纤10，该光纤10具有印刷在其中的布拉格光栅12，该光纤10包围玻璃毛细管20和/或大直径波导的至少一部分光栅600具有芯和宽包层，并且具有至少0.3mm的外横向尺寸。光14入射到光栅12上，光16以反射波长lambd1从光栅12反射。感测元件20,600可以自身用作传感器或位于壳体48,60,90,270,3300内。当外部压力P增加时，光栅12被压缩并且反射波长lambd1改变。感测元件20,600的形状可以具有其他几何形状，例如“狗骨”形状，以便增强由于施加的外部压力而导致的羔羊皮1偏移的灵敏度，并且可以将其熔合到外壳50上。至少感测元件的一部分可以掺杂在一对光栅150,152之间以形成压缩调谐的激光器，或者光栅12或光栅150,152可被构造为可调DFB激光器。此外，纤维10离开管20的元件20,600的轴向端部可以具有内锥形区域22和/或突出的锥形（或槽纹）轴向部分27，以提供应变消除或改进的纤维10的拉伸强度可以使用温度光栅270来测量温度并允许进行温度校正的压力测量。传感器可以通过流体，间隔件或其他装置悬挂在外壳体112内。本发明也可以用作力传感器。

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