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1. 发明授权

US5394488A Optical fiber grating based sensor 失效
标题翻译：基于光纤光栅的传感器
公开(公告)号：US5394488A
公开(公告)日：1995-02-28
申请号：US159876
申请日：1993-11-30
申请人： Mark R. Fernald , Bruce D. Hockaday
发明人： Mark R. Fernald , Bruce D. Hockaday
IPC分类号： G01H9/00 , G02F1/095 , G02F1/09
CPC分类号： G02F1/095 , G01H9/004 , G02F2201/307
摘要： An optical speed sensor includes a laser diode 10 that provides a broadband source light 12 to a coupler 18 which provides a source light 22 to a fiber Bragg grating 26 which reflects a first reflection wavelength of light 28 and passes the remainder as a light 30. The light 30 is incident on another fiber Bragg grating 32 which reflects a second reflection wavelength of light 34. The power of an output signal 40 is indicative of the reflected light beams 34,28, and is measured by a photodetector 46. The gratings 26,32 are mounted on a magnetostrictive material 60 which is connected to a permanent magnet 62 which is connected to a material 70 which conducts magnetic fields. The material 60 expands and contracts in response to the strength of magnetic fields therein. The reflection wavelengths for both gratings 26,32 are the same when the tooth 100 is not nearby, thereby causing the output signal 40 to be primarily equal to the reflected light 28. However, when the tooth 100 is nearby, the material 60 and the grating 32 expands causing the reflection wavelengths to separate, thereby causing the power of the output signal 40 to increase. Because both gratings 26,32 are on the same material thermal expansions will have no effect on the sensor measurement. Alternatively, one of the gratings 26,32 may be mounted to the material 70 or the magnet 62. The detection may performed in either reflection or transmission mode.
摘要翻译：光学速度传感器包括激光二极管10，激光二极管10向耦合器18提供宽带源光12，耦合器18将光源22提供给反射光28的第一反射波长的光纤布拉格光栅26，并将其余部分作为光30传递。光30入射到反射光34的第二反射波长的另一个光纤布拉格光栅32上。输出信号40的功率表示反射光束34,28，并由光电检测器46测量。光栅26 ，32安装在磁致伸缩材料60上，磁致伸缩材料60连接到永磁体62，永磁体62连接到传导磁场的材料70。材料60响应于其中的磁场的强度而膨胀和收缩。当齿100不在附近时，两个光栅26,32的反射波长相同，从而使得输出信号40主要等于反射光28.然而，当齿100在附近时，材料60和光栅32膨胀，导致反射波长分离，从而导致输出信号40的功率增加。因为两个光栅26,32处于相同的材料上，热膨胀将对传感器测量没有影响。或者，光栅26,32中的一个可以安装到材料70或磁体62上。检测可以以反射或透射模式进行。

2. 发明授权

US11731143B2 Mineral separation using functionalized membranes 有权
公开(公告)号：US11731143B2
公开(公告)日：2023-08-22
申请号：US14117209
申请日：2012-05-25
申请人： Paul J. Rothman , Mark R. Fernald , Francis K. Didden , Christian V. O'Keefe , Douglas H. Adamson
发明人： Paul J. Rothman , Mark R. Fernald , Francis K. Didden , Christian V. O'Keefe , Douglas H. Adamson
IPC分类号： B01D37/02 , C02F1/24 , B01D39/00 , B01D15/02 , B03C5/00 , B04C1/00 , B07B1/00 , B03B1/04 , B03C1/01 , B03D1/02 , B03D1/14 , C22B15/00 , B03D1/016 , B03C5/02
CPC分类号： B03C5/00 , B01D15/02 , B01D37/02 , B01D39/00 , B03B1/04 , B03C1/01 , B03C5/02 , B03D1/016 , B03D1/023 , B03D1/14 , B04C1/00 , B07B1/00 , C02F1/24 , C22B15/0063 , Y10T428/2982
摘要： A machine or apparatus featuring a first processor and a second processor. The first processor is configured to receive a mixture of fluid, valuable material and unwanted material and a functionalized polymer coated member configured to attach to the valuable material in an attachment rich environment, and provide an enriched functionalized polymer coated member having the valuable material attached thereto. The second processor is configured to receive a fluid and the enriched functionalized polymer coated member in a release rich environment to release the valuable material, and provide the valuable material released from the enriched functionalized polymer coated member.

3. 发明授权

US09995609B2 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.

4. 发明授权

US09943860B2 Mineral recovery in tailings using functionalized polymers 有权
公开(公告)号：US09943860B2
公开(公告)日：2018-04-17
申请号：US14119013
申请日：2012-05-25
申请人： Paul J. Rothman , Mark R. Fernald , Francis K. Didden , Christian V. O'Keefe , Alan D. Kersey , Douglas H. Adamson
发明人： Paul J. Rothman , Mark R. Fernald , Francis K. Didden , Christian V. O'Keefe , Alan D. Kersey , Douglas H. Adamson
IPC分类号： B01D37/02 , B03C5/00 , B04C1/00 , B07B1/00 , B03B1/04 , B03D1/02 , C02F1/24 , B03D1/14 , B01D39/00 , C22B15/00 , B01D15/02 , B03D1/016 , B03C1/01 , B03C5/02
CPC分类号： B03C5/00 , B01D15/02 , B01D37/02 , B01D39/00 , B03B1/04 , B03C1/01 , B03C5/02 , B03D1/016 , B03D1/023 , B03D1/14 , B04C1/00 , B07B1/00 , C02F1/24 , C22B15/0063 , Y10T428/2982
摘要： An apparatus and method for collecting mineral particles in the tailings is disclosed. The apparatus may take the form of a filter, a conveyor belt, a collection plate or an impeller configured to contact with tailings of a flotation process, before and/or after the tailings are discharged into a pond. The filter, conveyor belt, collection plate or impeller has a collection area or surface made of, or coated with, a synthetic material having a functional group, e.g., having an ionizing bond to attract the mineral particles of interest. Alternatively, the synthetic material has hydrophobic molecules to render the collection area hydrophobic. When the mineral particles of interest in the tailings are combined with collector molecules, the mineral particles of interest may also become hydrophobic. The hydrophobic mineral particles of interest are attracted to the hydrophobic collection area or surface. The filter, conveyor belt, collection plate and impeller may have a plurality of passage ways or synthetic beads in order to increase the contacting surfaces.

5. 发明授权

US09477042B2 Large diameter optical waveguide splice 有权
标题翻译：大直径光波导接头
公开(公告)号：US09477042B2
公开(公告)日：2016-10-25
申请号：US13311786
申请日：2011-12-06
申请人： Mark R. Fernald , Trevor W. MacDougall , Martin A. Putnam , Rebecca S. Bryant , Christopher J. Wright , Michael Arcand , Christopher T. Chipman
发明人： Mark R. Fernald , Trevor W. MacDougall , Martin A. Putnam , Rebecca S. Bryant , Christopher J. Wright , Michael Arcand , Christopher T. Chipman
IPC分类号： G02B6/26 , G02B6/255
CPC分类号： G02B6/2551
摘要： Techniques and systems suitable for performing low-loss fusion splicing of optical waveguide sections are provided. According to some embodiments, multiple laser beams (from one or more laser) may be utilized to uniformly heat a splice region including portions of the optical waveguide sections to be spliced, which may have different cross-sectional dimensions. According to some embodiments, the relative distance of the optical waveguide sections and/or the power of the multiple laser beams may be varied during splicing operations.
摘要翻译：提供了适合于执行光波导部分的低损耗熔接的技术和系统。根据一些实施例，可以使用多个激光束（来自一个或多个激光器）来均匀地加热包括可以具有不同横截面尺寸的要拼接的光波导部分的部分的接合区域。根据一些实施例，可以在拼接操作期间改变光波导部分的相对距离和/或多个激光束的功率。

6. 发明授权

US09360309B2 Method and apparatus for monitoring of component housing wall thickness and wear monitoring 有权
标题翻译：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。

7. 发明申请

US20140227520A1 SYNTHETIC BEADS/BUBBLES FUNCTIONALIZED WITH MOLECULES FOR ATTRACTING AND ATTACHING TO MINERAL PARTICLES OF INTEREST 有权
标题翻译：合成珠/泡沫与分子接触和连接矿物颗粒的功能
公开(公告)号：US20140227520A1
公开(公告)日：2014-08-14
申请号：US14117887
申请日：2012-05-25
申请人： Paul J. Rothman , Mark R. Fernald , Francis K. Didden , Christian V. O'Keefe , Alan D. Kersey , Douglas H. Adamson
发明人： Paul J. Rothman , Mark R. Fernald , Francis K. Didden , Christian V. O'Keefe , Alan D. Kersey , Douglas H. Adamson
IPC分类号： B03D1/016
CPC分类号： B03C5/00 , B01D15/02 , B01D37/02 , B01D39/00 , B03B1/04 , B03C1/01 , B03C5/02 , B03D1/016 , B03D1/023 , B03D1/14 , B04C1/00 , B07B1/00 , C02F1/24 , C22B15/0063 , Y10T428/2982
摘要： A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attracting mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.
摘要翻译：描述了用于矿物分离的合成珠粒。合成珠具有由合成材料如聚合物制成的表面，并且合成材料在具有用于在分离过程中将矿物颗粒吸引到表面的官能团的分子官能化。合成珠可以放置在含有水，有价值材料和不想要的材料的混合物的浮选池中，或者在混合物从一个位置运输到另一个位置的管道中。携带矿物颗粒的富集合成珠粒与混合物中的不需要的物质分离。矿物颗粒然后通过低pH处理，超声波搅拌，热或电磁处理从合成珠粒中释放出来。

8. 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。

9. 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。

10. 发明授权

US07209606B2 Fabry-perot sensing element based on a large-diameter optical waveguide 有权
标题翻译：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。

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