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1. 发明授权

US11180594B2 Compositions and articles for additive fabrication and methods of using the same 有权
公开(公告)号：US11180594B2
公开(公告)日：2021-11-23
申请号：US16957820
申请日：2018-12-19
申请人： DSM IP Assets B.V.
发明人： Kangtai Ren , Robin Papachristopoulos
IPC分类号： C08F2/46 , C08F2/50 , C08G61/04 , C08F220/18 , B33Y70/00 , C09B11/24 , G01P5/20 , B29C64/135
摘要： Radiation curable compositions for additive fabrication processes, the components cured therefrom, and their use in particle image velocimetry testing methods are described and claimed herein. Such compositions include compounds which induce free-radical polymerization, optionally compounds which induce cationic polymerization, a filler constituent, and a light absorbing component, wherein the compositions are configured to possess certain absorbance values at wavelengths commonly utilized in particle image velocimetry testing. In another embodiment, the compositions include a fluoroantimony-modified compound. Such compositions may be used in particle imaging velocimetry testing methods, wherein the test object utilized is created via additive fabrication and is of a substantially homogeneous construction.

2. 发明申请

US20200378999A1 RAINBOW PARTICLE IMAGING VELOCIMETRY FOR DENSE 3D FLUID VELOCITY IMAGING 审中-公开
公开(公告)号：US20200378999A1
公开(公告)日：2020-12-03
申请号：US16928487
申请日：2020-07-14
申请人： KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人： Wolfgang HEIDRICH , Jinhui XIONG , Xiong DUN , Ramzi IDOUGHI , Sigurdur Tryggvi THORODDSEN , Andres A. AGUIRRE-PABLO , Abdulrahman B. ALJEDAANI , Erqiang LI
IPC分类号： G01P5/26 , G01S11/12 , G01S17/58 , G01P5/20 , G01P5/00 , G06T11/00
摘要： Imaging of complex, non-stationary three dimensional (3D) flow velocities is achieved by encoding depth into color. A flow volume 22 is illuminated with a continuum 40 of light planes 42 whereby each depth corresponds to a respective light plane 14 having a specific wavelength of light. A diffractive component 46 in the camera 24 optics, which records the trajectories of illuminated particles 20 within the flow volume 22, ensures that all light planes 42 are in focus simultaneously. The setup permits a user to track 3D) trajectories of particles 20 within the flow volume 22 by combining two dimensional (2D) spatial and one dimensional (1D) color information. For reconstruction, an image formation model for recovering stationary ID particle positions is provided. 3D velocity estimation is achieved with a variant of a 3D optical flow approach that accounts for both physical constraints as well as the color (rainbow) image formation model.

3. 发明申请

US20200339718A1 COMPOSITIONS AND ARTICLES FOR ADDITIVE FABRICATION AND METHODS OF USING THE SAME 审中-公开
公开(公告)号：US20200339718A1
公开(公告)日：2020-10-29
申请号：US16957820
申请日：2018-12-19
申请人： DSM IP Assets B.V.
发明人： Kangtai REN , Robin PAPACHRISTOPOULOS
IPC分类号： C08F220/18 , B33Y70/00 , C09B11/24 , G01P5/20
摘要： Radiation curable compositions for additive fabrication processes, the components cured therefrom, and their use in particle image velocimetry testing methods are described and claimed herein. Such compositions include compounds which induce free-radical polymerization, optionally compounds which induce cationic polymerization, a filler constituent, and a light absorbing component, wherein the compositions are configured to possess certain absorbance values at wavelengths commonly utilized in particle image velocimetry testing. In another embodiment, the compositions include a fluoroantimony-modified compound. Such compositions may be used in particle imaging velocimetry testing methods, wherein the test object utilized is created via additive fabrication and is of a substantially homogeneous construction.

4. 发明授权

US09957336B2 Method of making dye-doped polystyre microparticles 有权
公开(公告)号：US09957336B2
公开(公告)日：2018-05-01
申请号：US14706585
申请日：2015-05-07
申请人： The United States of America represented by the Administrator of the National Aeronautics and Space Administration
发明人： Christopher J. Wohl, Jr. , Pacita I. Tiemsin , Paul M. Danehy , Jason E. Danley
IPC分类号： C09D11/50 , C08F212/14 , C08F12/30 , C09K11/02 , C09K11/06 , C09D11/328 , G01P5/20 , G01M9/04
CPC分类号： C08F12/30 , C09D11/328 , C09D11/50 , C09K11/025 , C09K11/06 , C09K2211/1007 , C09K2211/1096 , G01M9/04 , G01P5/20 , C08F212/14 , C08F212/08
摘要： Various embodiments provide dye-doped polystyrene microspheres generated using dispersion polymerization. Polystyrene microspheres may be doped with fluorescent dyes, such as xanthene derivatives including kiton red 620 (KR620), using dispersion polymerization. Certain functionalities, such as sodium styrene sulfonate, may be used to shift the equilibrium distribution of dye molecules to favor incorporation of the dye into the particles. Polyelectrolyte materials, such as poly(diallyldimethyl ammonium chloride), PolyDADMAC, may be used to electrostatically trap and bind dye molecules within the particles. A buffer may be used to stabilize the pH change of the solution during dye-doped polystyrene microsphere generation and the buffer may be selected depending on the pKa of the dye being incorporated. The various embodiments may provide dye-doped polystyrene microspheres, such as KR620-doped polystyrene microspheres that are non-toxic and non-carcinogenic. These non-toxic and non-carcinogenic dye-doped polystyrene microspheres may be suitable for use in wind tunnel testing.

5. 发明授权

US09817016B1 Low cost optical high speed discrete measurement system 有权
公开(公告)号：US09817016B1
公开(公告)日：2017-11-14
申请号：US15672587
申请日：2017-08-09
申请人： Bio-Rad Laboratories, Inc.
发明人： David H. Tracy , Aaron Weber , Peter Stokes
IPC分类号： G01P5/20 , B01L3/00 , G01N15/14 , G01N15/02 , G01F1/708 , G01P5/00 , G01F22/00 , G01N15/10 , G01N35/08
CPC分类号： G01P5/20 , B01L3/502715 , B01L3/502784 , B01L2200/143 , B01L2400/0487 , B01L2400/082 , G01F1/7086 , G01F22/00 , G01N15/0227 , G01N15/1434 , G01N15/1459 , G01N15/1463 , G01N15/1484 , G01N35/08 , G01N2015/1075 , G01N2015/1493 , G01P5/001
摘要： Systems and methods are provided for determining a velocity or an inflation rate of a droplet in a microfluidic channel. The droplet is exposed to two or more temporally separated flashes of light, each flash including light of one wavelength band, and imaged using a detector configured to distinguish light in the wavelength bands. Two or more images of the droplet are acquired, each corresponding to one of the flashes, and all within a single video frame or photographic exposure. The images can be processed separately and the position or size of the droplet in each image is calculated. A velocity or inflation rate is then determined by dividing the change in position or size by the amount of time allowed to pass between the flashes.

6. 发明授权

US09733267B2 Method of determining a changing spatial distribution of particles at multiple points in time 有权
公开(公告)号：US09733267B2
公开(公告)日：2017-08-15
申请号：US14953675
申请日：2015-11-30
申请人： LaVision GmbH
发明人： Bernhard Wieneke , Andreas Schroeder , Daniel Schanz
IPC分类号： G06K9/00 , G01P5/20 , G01P5/00 , G06T7/246
CPC分类号： G01P5/20 , G01P5/001 , G06T7/246 , G06T2207/30241
摘要： For determining a changing spatial distribution of particles at each of multiple points in time, real two-dimensional images of the particles are recorded with different mapping functions. An estimated spatial distribution of the particles is provided. Virtual two-dimensional images of the estimated spatial distribution are calculated applying the different mapping functions. Differences between the virtual and the real two-dimensional images are determined; and the estimated spatial distribution of the particles are varied for reducing the differences to obtain a spatial distribution approximated to the actual spatial distribution of the particles. The estimated spatial distribution of the particles is provided in that the locations of the individual particles in a spatial distribution approximated for one other point in time are shifted dependently on how the locations of the individual particles have changed between at least two spatial distributions approximated for at least two other points in time.

7. 发明申请

US20100033707A1 DEVICE AND METHOD FOR THREE-DIMENSIONAL FLOW MEASUREMENT 审中-公开
标题翻译：用于三维流量测量的装置和方法
公开(公告)号：US20100033707A1
公开(公告)日：2010-02-11
申请号：US12440843
申请日：2007-09-07
申请人： Christof Gerlach , Michael Zielinski
发明人： Christof Gerlach , Michael Zielinski
IPC分类号： G01P5/20 , G01P3/36
CPC分类号： G01P5/001 , G01P5/20 , G01P13/04 , G01P13/045
摘要： A method for repairing turbine blades by replacing at least a part of the blade profile, the method having: a) manufacture of a replacement blade part; b) separation of the damaged area with a standardized cutting plane, leaving behind a remaining blade; c) matching of the replacement blade part to the actual geometry of the remaining blade; d) connecting or joining of the replacement blade part to the remaining blade by soldering of at least one web and welding of an outer contour.
摘要翻译：一种通过更换叶片轮廓的至少一部分来修复涡轮叶片的方法，该方法具有：a）制造替换叶片部分; b）用标准化的切割平面分离损坏的区域，留下剩余的刀片; c）将替换刀片部件与剩余刀片的实际几何形状匹配; d）通过焊接至少一个腹板和外部轮廓的焊接来将替换刀片部分连接或连接到剩余刀片。

8. 发明申请

US20050284626A1 Flowshot technique 有权
公开(公告)号：US20050284626A1
公开(公告)日：2005-12-29
申请号：US10879620
申请日：2004-06-29
申请人： Stephen Riley , Benoit Guivarch , Darryl Trcka , David Chace
发明人： Stephen Riley , Benoit Guivarch , Darryl Trcka , David Chace
IPC分类号： E21B47/00 , E21B43/02 , E21B43/12 , E21B47/12 , G01F1/708 , G01P5/20
CPC分类号： E21B47/1015 , E21B43/126 , E21B47/0005 , G01F1/7088 , G01P5/20
摘要： A pulsed neutron source irradiates an earth formation. The irradiation produces N16 from O16 in a fluid in the borehole, and the gamma rays produced by the subsequent decay of N16 are detected by a plurality of spaced apart detectors. The count rates of the detectors are accumulated over a time sampling interval to produce temporal signals. Processing of the temporal signals using correlation, differentiation and/or semblance techniques is used for determination of the flow velocity of one or more fluids in the borehole.

9. 发明授权

US06881953B2 Method of tracing drains 有权
标题翻译：跟踪下水道的方法
公开(公告)号：US06881953B2
公开(公告)日：2005-04-19
申请号：US09966912
申请日：2001-09-28
申请人： Michael J. Weiland , John E. Hoots
发明人： Michael J. Weiland , John E. Hoots
IPC分类号： E03F7/00 , G01N21/64 , G01P5/20
CPC分类号： G01N21/643 , E03F7/00 , E03F2201/20 , G01N2021/6439
摘要： The claimed method of tracing drains starts with a comprehensive building survey in which all existing drains are numbered. A Master Blueprint and a Master Spreadsheet are created using information collected in the building survey. A tracer is used to determine the flow of storm water to and from the building's storm drains. A test location, consisting of a storm manhole or a sanitary manhole is then chosen and water is run continuously through this manhole. A non-toxic fluorescent tracer is added to the target sanitary drain and a sample of the water running through the test location is withdrawn. A fluorometer is used to detect the fluorescent signal of non-toxic fluorescent tracer in the sample of water withdrawn. This procedure is repeated until all test locations have been surveyed and the information recorded on the Master Blueprint and Master Spreadsheet. The information is used to replumb drains.
摘要翻译：所要求的追查排水渠的方法始于一个全面的建筑调查，其中所有现有的排水渠都编号。使用建筑调查中收集的信息创建主蓝图和主电子表格。使用示踪剂来确定暴雨水流出建筑物的雨水流量的流量。然后选择一个测试位置，包括一个暴风沙井或一个卫生人孔，水通过这个人孔连续运行。将一个无毒的荧光示踪剂加入到目标卫生排水管中，并且抽出流过测试位置的水样品。荧光计用于检测抽取的水样品中无毒荧光示踪剂的荧光信号。重复此过程，直到所有测试位置都被测量，并将信息记录在主蓝图和主电子表格上。该信息用于重新排水。

10. 发明授权

US6134001A Fluid diagnostic technique 有权
标题翻译：流体诊断技术
公开(公告)号：US6134001A
公开(公告)日：2000-10-17
申请号：US280977
申请日：1999-03-30
申请人： John D. Black
发明人： John D. Black
IPC分类号： G01K11/00 , G01N21/71 , G01P5/00 , G01P5/20 , G01D3/30
CPC分类号： G01K11/00 , G01N21/718 , G01P5/00 , G01P5/20
摘要： A non-obstructive fluid diagnostic technique is described which enables the measurement of different parameters in a fluid. The diagnostic technique includes the steps of focusing a laser (10) in a fluid volume (14) to generate a laser induced breakdown spark (15). The characteristics of the initial laser induced breakdown spark (15) are measured and compared to the characteristics of a delayed image of the spark, formed by light emission due to recombination and excited molecules and ions generated by the laser induced spark (15). The differences between the initial and delayed images being used to diagnose characteristics of the fluid, such as velocity, temperature and pressure.
摘要翻译：描述了一种非阻塞性流体诊断技术，其能够测量流体中的不同参数。诊断技术包括将激光器（10）聚焦在流体体积（14）中以产生激光诱发击穿火花（15）的步骤。测量初始激光诱发击穿火花（15）的特性，并与由激光诱导火花产生的复合和激发的分子和离子发射的光发射形成的火花的延迟图像的特性进行比较（15）。初始和延迟图像之间的差异用于诊断流体的特征，如速度，温度和压力。

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