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77 条记录 (耗时 0.033 秒)

    Single wrapped sensor flow meter
    1.
    发明授权
    Single wrapped sensor flow meter 有权

    公开(公告)号：US09995609B2

    公开(公告)日：2018-06-12

    申请号：US13583237

    申请日：2011-03-09

    申请人： Mark R. Fernald

    发明人： Mark R. Fernald

    IPC分类号： G01F1/00 ,  G01F1/66 ,  G01F1/708 ,  G01F1/712 ,  G06F11/30

    CPC分类号： G01F1/66 ,  G01F1/708 ,  G01F1/7082 ,  G01F1/712

    摘要： A signal processor receives a signal containing information about a sensor that is spirally wrapped at a known pitch or separation down a pipe having a flow; and determines a flow velocity based at least partly on the information contained in the signal received by applying an autocorrelation function that depends on a relationship between the time between a repeating pattern and the known pitch or separation of the spirally wrapped sensor. The signal processor provides a corresponding signal containing information about the flow velocity. The sensor includes a strain sensor, including a piezo-electric polymer strain sensor fabricated from PVDF, and/or two or more equally spaced spirally wound sensors. The determining includes correlating output signals of two or more equally spaced spirally wound sensors to determine a time delay, and determining the flow velocity based on the time delay and the known pitch or separation.

    Method and apparatus for monitoring of component housing wall thickness and wear monitoring
    4.
    发明授权
    Method and apparatus for monitoring of component housing wall thickness and wear monitoring 有权
    用于监测部件壳体壁厚和磨损监测的方法和装置

    公开(公告)号：US09360309B2

    公开(公告)日：2016-06-07

    申请号：US13635449

    申请日：2011-03-18

    申请人： James Michael Sullivan ,  Mark R. Fernald

    发明人： James Michael Sullivan ,  Mark R. Fernald

    IPC分类号： G01N29/04 ,  G06F19/00 ,  G01B17/02 ,  G01N29/07

    CPC分类号： G01B17/02 ,  G01N29/07 ,  G01N2291/02854 ,  G01N2291/2636

    摘要： A method for monitoring wall thickness of an industrial piping component or pump/fluid machinery, including a pump casing for a pump used for pumping an abrasive fluid or slurry, comprising providing a signal containing information about a ultrasonic-based transducer pulse from a discrete ultrasonic-based transducer attached directly on an industrial piping component or pump/fluid machinery at a local point of interest and configured to inject the ultrasonic-based transducer pulse into the industrial piping component or pump/fluid machinery at the local point of interest and sense the ultrasonic-based transducer pulse reflected off a wall of the industrial piping component or pump/fluid machinery at the local point of interest; and determining with an electronic monitoring system the thickness of the wall of the industrial piping component or pump/fluid machinery at the local point of interest based at least partly on the signal received containing information about the discrete ultrasonic-based transducer pulse sensed. The discrete ultrasonic-based transducer may include a discrete ultrasonic-based piezoelectric transducer.

    摘要翻译： 一种用于监测工业管道部件或泵/流体机械的壁厚的方法，包括用于泵送磨料流体或浆料的泵的泵壳体，包括提供包含来自离散超声波的基于超声波传感器脉冲的信息的信号 基于传感器的传感器直接连接在工业管道部件或泵/流体机械上，并且被配置为将基于超声波的传感器脉冲喷射到工业管道部件或泵/流体机械中并感测其位置 基于超声波的换能器脉冲从当地兴趣点的工业管道部件或泵/流体机械的壁反射出来; 以及至少部分地基于所接收的包含关于基于离散的基于超声波的换能器脉冲的信号的信号，利用电子监视系统确定工业管道部件或泵/流体机械的壁的厚度。 离散的基于超声波的换能器可以包括离散的基于超声波的压电换能器。

    FLOW AND PIPE MANAGEMENT USING VELOCITY PROFILE MEASUREMENT AND/OR PIPE WALL THICKNESS AND WEAR MONITORING
    7.
    发明申请
    FLOW AND PIPE MANAGEMENT USING VELOCITY PROFILE MEASUREMENT AND/OR PIPE WALL THICKNESS AND WEAR MONITORING 有权
    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。

    Fabry-perot sensing element based on a large-diameter optical waveguide
    8.
    发明授权
    Fabry-perot sensing element based on a large-diameter optical waveguide 有权
    基于大直径光波导的法布里 - 珀罗感应元件

    公开(公告)号：US07209606B2

    公开(公告)日：2007-04-24

    申请号：US11136144

    申请日：2005-05-24

    申请人： Alan D. Kersey ,  Martin A. Putnam ,  Mark R. Fernald ,  Robert N. Brucato ,  James S. Sirkis

    发明人： Alan D. Kersey ,  Martin A. Putnam ,  Mark R. Fernald ,  Robert N. Brucato ,  James S. Sirkis

    IPC分类号： G02B6/26

    CPC分类号： G02B6/29317 ,  G01L1/242 ,  G02B6/29334 ,  G02B6/29358 ,  G02B6/29359 ,  G02B6/29389

    摘要： An optical sensing device including a force-applying assembly for providing a force and a Fabry-Perot (FP) element including a large-diameter waveguide having a core and having a cavity in line with the core, the cavity having reflective surfaces and having an optical path length related to the distance between the reflective surfaces, the FP element being coupled to the force so that the optical path length changes according to the force, the FP element for providing an output optical signal containing information about a parameter that relates to the force. Sometimes the large-diameter waveguide is formed by collapsing a glass tube, having a bore and having an outer diameter of about one millimeter, onto a pair of optical fibers arranged in tandem in the bore and separated by a predetermined distance, and respective end faces of the optical fibers form the cavity and are coated with a wholly or partially reflective material.

    摘要翻译： 一种光学传感装置，包括用于提供力的力施加组件和包括具有芯的大直径波导的法布里 - 珀罗（FP）元件，并且具有与所述芯一致的空腔，所述腔具有反射表面并且具有 光路长度与反射表面之间的距离相关联，FP元件被耦合到力，使得光路长度根据力而变化，FP元件用于提供包含关于参数的参数的信息的输出光信号 力。 有时，大直径波导是通过将具有孔径并且具有约1毫米的外径的玻璃管塌陷在一起在孔中并排布置预定距离的一对光纤上而形成的，并且相应的端面 的光纤形成空腔并涂覆有全部或部分反射材料。

    Temperature compensated optical device
    9.
    发明授权
    Temperature compensated optical device 有权
    温度补偿光学器件

    公开(公告)号：US06621957B1

    公开(公告)日：2003-09-16

    申请号：US09699940

    申请日：2000-10-30

    申请人： James M. Sullivan ,  Timothy J. Bailey ,  Robert N. Brucato ,  Thomas W. Engel ,  Mark R. Fernald ,  Richard T. Jones ,  Alan D. Kersey ,  Trevor MacDougall ,  Matthew B. Miller ,  Martin A. Putnam ,  Paul E. Sanders ,  James S. Sirkis

    发明人： James M. Sullivan ,  Timothy J. Bailey ,  Robert N. Brucato ,  Thomas W. Engel ,  Mark R. Fernald ,  Richard T. Jones ,  Alan D. Kersey ,  Trevor MacDougall ,  Matthew B. Miller ,  Martin A. Putnam ,  Paul E. Sanders ,  James S. Sirkis

    IPC分类号： G02B634

    CPC分类号： G02F1/0115 ,  G02B6/0218 ,  H01S3/0675 ,  H01S3/1028

    摘要： A temperature compensated optical device includes a compression-tuned glass element 10 having a Bragg grating 12 therein, a compensating material spacer 26 and an end cap 28 all held within an outer shell 30. The element 10, end cap 28 and shell 30 are made of a material having a low coefficient of thermal expansion (CTE), e.g., silica, quartz, etc. and the spacer 26 is made of a material having a higher CTE, e.g., metal, Pyrex®, ceramic, etc. The material and length L5 of the spacer 26 is selected to offset the upward grating wavelength shift due to temperature. As temperature rises, the spacer 26 expands faster than the silica structure causing a compressive strain to be exerted on the element 10, which shifts the wavelength of the grating 12 down to balance the intrinsic temperature induces wavelength shift up. As a result, the grating 12 wavelength is substantially unchanged over a wide temperature range. The element 10 includes either an optical fiber having at least one Bragg grating 12 impressed therein encased within and fused to at least a portion of a glass capillary tube or a large diameter waveguide (or cane) with a grating 12 having a core 11 and a wide cladding, which does not buckle over a large range of compressive axial strains. The element may have a “dogbone” shape to amplify compressive strain on the grating 12. The device 8 may also be placed in an axially tunable system that allows the wavelength to be dynamically tuned while remaining athermal. In addition to a grating, the device may be an athermal laser, DFB laser, etc. Also, the entire device 8 may be all made of monolithic glass materials.

    摘要翻译： 温度补偿光学器件包括其中具有布拉格光栅12的压缩调谐玻璃元件10，补偿材料间隔件26和端盖28，所述补偿材料间隔件26和端盖28都保持在外壳30内。元件10，端帽28和壳体30被制成 具有低热膨胀系数（CTE）的材料，例如二氧化硅，石英等，并且间隔物26由具有较高CTE（例如金属，Pyrex，陶瓷等）的材料制成。 选择间隔件26的材料和长度L5以抵消由于温度引起的向上光栅波长偏移。 随着温度升高，间隔件26比二氧化硅结构膨胀得更快，导致施加在元件10上的压缩应变，其将光栅12的波长向下移动以平衡本征温度，从而引起波长向上移动。 结果，光栅12的波长在宽温度范围内基本上不变。 元件10包括具有至少一个布拉格光栅12的光纤，该光纤封装在玻璃毛细管或大直径波导（或甘蔗）的至少一部分内并与其融合，其中光栅12具有芯11和 宽的包层，其在大范围的压缩轴向应变下不扣合。 元件可以具有“狗骨”形状以放大光栅12上的压缩应变。器件8也可以放置在轴向可调谐系统中，其允许波长被动态调谐而保持不耐热。 除了光栅之外，该器件可以是无热激光器，DFB激光器等。此外，整个器件8可以全部由单片玻璃材料制成。

    Digitizing scanner
    10.
    发明授权
    Digitizing scanner 失效
    数字化扫描仪

    公开(公告)号：US06606171B1

    公开(公告)日：2003-08-12

    申请号：US08948108

    申请日：1997-10-09

    申请人： Jeffrey D. Renk ,  Richard F. Lehman ,  Mark R. Fernald ,  Calvin M. Winey

    发明人： Jeffrey D. Renk ,  Richard F. Lehman ,  Mark R. Fernald ,  Calvin M. Winey

    IPC分类号： H04N104

    CPC分类号： H04N1/00013 ,  H04N1/00002 ,  H04N1/00037 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00087 ,  H04N1/02815 ,  H04N1/0284 ,  H04N1/02885 ,  H04N1/121 ,  H04N1/191 ,  H04N1/40056 ,  H04N1/40068 ,  H04N1/401 ,  H04N2201/0412

    摘要： A digitizing scanner particularly for scanning transparent films such as X-rays provides an improved illuminator for transmitting light through the film. The illuminator defines a line array of a plurality of individually calibrated and controlled LEDs. The LEDs are calibrated by determining their relative points of projection on a CCD camera array. The camera array scans the LEDs and adjusts them individually to produce a predetermined illumination pattern from the group. The adjustment occurs over a plurality of cycles that address cross-talk between LEDs in the array. The camera includes anti-reflection elements to minimize bounce-back of image light and noise suppression circuitry to reduce low-level signal noise. A central processing unit, interconnected with the camera assembly includes a pixel averager to reduce the inherent resolution of the CCD to a desired level and to attenuate further noise. The scanner can include an illuminator for illuminating a scannable opaque bar-code strip and size-measurement circuitry for determining the relative size and location of the scanned image.

    摘要翻译： 特别用于扫描诸如X射线的透明膜的数字化扫描器提供了用于透过膜的光的改进的照明器。 照明器定义多个单独校准和控制的LED的线阵列。 通过确定它们在CCD相机阵列上的相对投影点来校准LED。 相机阵列扫描LED并分别调整它们以从组中产生预定的照明图案。 调整发生在解决阵列中的LED之间的串扰的多个周期中。 相机包括防反射元件，以最小化图像光和噪声抑制电路的反弹，以降低低电平信号噪声。 与相机组件相互连接的中央处理单元包括像素平均器，以将CCD的固有分辨率降低到期望的水平并衰减进一步的噪声。 扫描器可以包括用于照亮可扫描的不透明条形码条的照明器和用于确定扫描图像的相对尺寸和位置的尺寸测量电路。