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    • 2. 发明授权
    • Method for non-contact particle manipulation and control of particle spacing along an axis
    • 非接触式颗粒操纵和沿着轴线控制颗粒间距的方法
    • US08528406B2
    • 2013-09-10
    • US11923403
    • 2007-10-24
    • Gregory Russ GoddardGregory KaduchakJames Hubert JettSteven Wayde Graves
    • Gregory Russ GoddardGregory KaduchakJames Hubert JettSteven Wayde Graves
    • G01H17/00
    • G01N15/1404G01N2015/142
    • One or more of the embodiments of the present invention provide for a method of non-contact particle manipulation and control of particle spacing along an axis which includes axial and radial acoustic standing wave fields. Particles are suspended in an aqueous solution, and this solution then flows into the cylindrical flow channel. While the solution flows through the flow channel, the outer structure of the flow channel is vibrated at a resonant frequency, causing a radial acoustic standing wave field to form inside the flow channel in the solution. These radial acoustic standing waves focus the particles suspended in the solution to the center axis of the cylindrical flow channel.At the same time, a transducer is used to create an axial acoustic standing wave field in the flow channel parallel to the axis of the flow channel. This drives the particles, which are already being focused to the center axis of the flow channel, to nodes or anti-nodes of the axial standing wave at half-wavelength intervals, depending on whether the particles are more or less dense and more or less compressible than the surrounding fluid.
    • 本发明的一个或多个实施例提供了一种非接触式粒子操纵和沿着包括轴向和径向声驻波的轴的颗粒间隔的控制的方法。 将颗粒悬浮在水溶液中,然后将该溶液流入圆柱形流动通道。 当溶液流过流动通道时,流动通道的外部结构以共振频率振动,导致在溶液中的流动通道内形成径向声驻波。 这些径向声驻波将悬浮在溶液中的颗粒聚焦到圆柱形流动通道的中心轴线上。 同时,传感器用于在平行于流动通道的轴线的流动通道中产生轴向声波驻波场。 这些粒子已经被聚焦到流动通道的中心轴线,以半波长间隔的轴向驻波的节点或反节点驱动,这取决于粒子是多或少密集还是多或少 可压缩比周围的液体。
    • 6. 发明授权
    • Material fabrication using acoustic radiation forces
    • 使用声辐射力的材料制造
    • US09199217B2
    • 2015-12-01
    • US13047684
    • 2011-03-14
    • Naveen N. SinhaDipen N. SinhaGregory Russ Goddard
    • Naveen N. SinhaDipen N. SinhaGregory Russ Goddard
    • B29B13/08B01J19/10B01J19/06G10K11/165
    • B01J19/06B01J19/10B29C37/00B29C2791/008B29K2063/00B29K2995/0094G10K11/165
    • Apparatus and methods for using acoustic radiation forces to order particles suspended in a host liquid are described. The particles may range in size from nanometers to millimeters, and may have any shape. The suspension is placed in an acoustic resonator cavity, and acoustical energy is supplied thereto using acoustic transducers. The resulting pattern may be fixed by using a solidifiable host liquid, forming thereby a solid material. Patterns may be quickly generated; typical times ranging from a few seconds to a few minutes. In a one-dimensional arrangement, parallel layers of particles are formed. With two and three dimensional transducer arrangements, more complex particle configurations are possible since different standing-wave patterns may be generated in the resonator. Fabrication of periodic structures, such as metamaterials, having periods tunable by varying the frequency of the acoustic waves, on surfaces or in bulk volume using acoustic radiation forces, provides great flexibility in the creation of new materials. Periodicities may range from millimeters to sub-micron distances, covering a large portion of the range for optical and acoustical metamaterials.
    • 描述了使用声辐射力来排序悬浮在主液体中的颗粒的装置和方法。 颗粒的尺寸范围可以从纳米到毫米,并且可以具有任何形状。 将悬浮液放置在声谐振腔中,使用声换能器向其提供声能。 所得到的图案可以通过使用可固化的主体液体固化,由此形成固体材料。 模式可能很快生成; 典型的时间范围从几秒到几分钟。 在一维布置中,形成平行的颗粒层。 利用二维和三维换能器布置,由于可能在谐振器中产生不同的驻波图案,所以更复杂的粒子配置是可能的。 通过使用声辐射力来改变声波的频率,在表面上或在体积上可调节周期的诸如超材料的周期性结构的制造在新材料的创建方面提供了很大的灵活性。 周期可以从毫米到亚微米的距离范围,覆盖光学和声学超材料的大部分范围。
    • 10. 发明申请
    • MATERIAL FABRICATION USING ACOUSTIC RADIATION FORCES
    • 使用声辐射力的材料制造
    • US20120068383A1
    • 2012-03-22
    • US13047684
    • 2011-03-14
    • Naveen N. SinhaDipen N. SinhaGregory Russ Goddard
    • Naveen N. SinhaDipen N. SinhaGregory Russ Goddard
    • B29B13/08
    • B01J19/06B01J19/10B29C37/00B29C2791/008B29K2063/00B29K2995/0094G10K11/165
    • Apparatus and methods for using acoustic radiation forces to order particles suspended in a host liquid are described. The particles may range in size from nanometers to millimeters, and may have any shape. The suspension is placed in an acoustic resonator cavity, and acoustical energy is supplied thereto using acoustic transducers. The resulting pattern may be fixed by using a solidifiable host liquid, forming thereby a solid material. Patterns may be quickly generated; typical times ranging from a few seconds to a few minutes. In a one-dimensional arrangement, parallel layers of particles are formed. With two and three dimensional transducer arrangements, more complex particle configurations are possible since different standing-wave patterns may be generated in the resonator. Fabrication of periodic structures, such as metamaterials, having periods tunable by varying the frequency of the acoustic waves, on surfaces or in bulk volume using acoustic radiation forces, provides great flexibility in the creation of new materials. Periodicities may range from millimeters to sub-micron distances, covering a large portion of the range for optical and acoustical metamaterials.
    • 描述了使用声辐射力来排序悬浮在主液体中的颗粒的装置和方法。 颗粒的尺寸范围可以从纳米到毫米,并且可以具有任何形状。 将悬浮液放置在声谐振腔中,使用声换能器向其提供声能。 所得到的图案可以通过使用可固化的主体液体固化,由此形成固体材料。 模式可能很快生成; 典型的时间范围从几秒到几分钟。 在一维布置中,形成平行的颗粒层。 利用二维和三维换能器布置,由于可能在谐振器中产生不同的驻波图案,所以更复杂的粒子配置是可能的。 通过使用声辐射力来改变声波的频率,在表面上或在体积上可调节周期的诸如超材料的周期性结构的制造在新材料的创建方面提供了很大的灵活性。 周期可以从毫米到亚微米的距离范围,覆盖光学和声学超材料的大部分范围。