Implant wear debris detection apparatus and method
    1.
    发明授权
    Implant wear debris detection apparatus and method 失效
    植入物磨损检测装置及方法

    公开(公告)号:US06413215B1

    公开(公告)日:2002-07-02

    申请号:US09660639

    申请日:2000-09-13

    IPC分类号: A61B800

    CPC分类号: A61B8/08

    摘要: A system for detecting wear debris particulate from a medical implant within the body of a living animal is provided. The system includes an acoustic transmitter for transmitting acoustic energy from outside the body to a soft tissue region proximate the medical implant containing wear debris particles; an acoustic receiver located outside the body to detect resultant acoustic energy generated by the wear debris particles and produce a received signal indicative thereof; a processor for processing the received signal to evaluate at least one parameter associated with the wear debris particles; and an output for indicating the at least one parameter.

    摘要翻译: 提供了一种用于从动物体内的医疗植入物检测磨损颗粒的系统。 该系统包括用于将声能从身体外部传递到靠近包含磨损颗粒的医疗植入物的软组织区域的声发射器; 位于身体外部的声学接收器,用于检测由磨损碎片颗粒产生的合成声能并产生指示其的接收信号; 用于处理所接收的信号以评估与所述磨损碎片颗粒相关联的至少一个参数的处理器; 以及用于指示所述至少一个参数的输出。

    Piezoelectric vibrational energy harvesting systems incorporating parametric bending mode energy harvesting
    2.
    发明授权
    Piezoelectric vibrational energy harvesting systems incorporating parametric bending mode energy harvesting 有权
    包含参数弯曲模式能量收集的压电振动能量采集系统

    公开(公告)号:US08080920B2

    公开(公告)日:2011-12-20

    申请号:US12532322

    申请日:2008-03-21

    IPC分类号: H01L41/113

    CPC分类号: H01L41/1136 H02N2/188

    摘要: Vibrational energy harvesting (VEH) structures that include resonant beams each having a fundamental resonance frequency and a parametric mode frequency and including at least one piezoelectric layer for generating electrical charge in response to each of fundamental-resonance excitation and parametric-mode excitation of that beam. Circuitry is provided for harvesting the electrical charge from the resonant beam. In some embodiments, the parametric mode frequency of the beam is tuned to be close to its fundamental resonance frequency so as to increase the effective bandwidth of a VEH structure. The effective bandwidth of a VEH structure can be further increased by tuning ones of multiple parametric-mode-enabled resonant beams to slightly different fundamental resonance frequencies and parametric mode frequencies.

    摘要翻译: 振动能量收集(VEH)结构,其包括每个具有基本共振频率和参数模式频率的谐振光束,并且包括至少一个用于响应于该光束的基本共振激发和参数模式激励中的每一个产生电荷的压电层 。 提供电路用于从谐振光束收集电荷。 在一些实施例中,波束的参数模式频率被调谐为接近其基本共振频率,以便增加VEH结构的有效带宽。 通过将多个参数模式启用的谐振光束中的一个调谐到略微不同的基本共振频率和参数模式频率,可以进一步提高VEH结构的有效带宽。

    Aeroacoustic duster
    3.
    发明授权
    Aeroacoustic duster 有权
    航空声音除尘器

    公开(公告)号:US08695156B2

    公开(公告)日:2014-04-15

    申请号:US13024072

    申请日:2011-02-09

    IPC分类号: A47L5/14 F15D1/00

    CPC分类号: A47L5/14 F15D1/00

    摘要: The aero-acoustic duster invention disclosed herein provides for high particle removal rate from surfaces with low energy expenditure relative to competing vacuum-based devices. The device removes particulate matter from a surface using a two-step process: 1. Acoustic radiation is used to break the adhesive bonds between dust and the surface, forcing particles into a mode where they continuously bounce up and down on the surface; and, 2. A bounded vortex is generated over the surface, with suction in the vortex center and jets for blowing air along the periphery. The jets are tilted in the tangential direction to induce vortex motion within the suction region. The vortex is said to be bounded because streamlines originating in the downward jets are entrained back into the central vortex.

    摘要翻译: 本文公开的气动声学除尘器发明提供了相对于竞争的基于真空的装置具有低能量消耗的表面的高颗粒去除速率。 该装置使用两步法从表面除去颗粒物:1.声辐射用于破坏灰尘和表面之间的粘合剂结合,迫使颗粒进入表面上下连续的模式; 并且,在表面上产生有界的涡流,在涡流中心具有吸力并且沿周边吹送空气的喷嘴。 喷嘴在切向方向上倾斜以在吸力区域内引起涡流运动。 涡流被认为是有界的,因为起源于向下喷射的流线被夹带回中心涡流。

    Aeroacoustic Duster
    4.
    发明申请
    Aeroacoustic Duster 有权
    航空声波除尘器

    公开(公告)号:US20110214246A1

    公开(公告)日:2011-09-08

    申请号:US13024072

    申请日:2011-02-09

    IPC分类号: A47L5/14 F15D1/00

    CPC分类号: A47L5/14 F15D1/00

    摘要: The aero-acoustic duster invention disclosed herein provides for high particle removal rate from surfaces with low energy expenditure relative to competing vacuum-based devices. The device removes particulate matter from a surface using a two-step process: 1. Acoustic radiation is used to break the adhesive bonds between dust and the surface, forcing particles into a mode where they continuously bounce up and down on the surface; and, 2. A bounded vortex is generated over the surface, with suction in the vortex center and jets for blowing air along the periphery. The jets are tilted in the tangential direction to induce vortex motion within the suction region. The vortex is said to be bounded because streamlines originating in the downward jets are entrained back into the central vortex.

    摘要翻译: 本文公开的气动声学除尘器发明提供了相对于竞争的基于真空的装置具有低能量消耗的表面的高颗粒去除速率。 该装置使用两步法从表面除去颗粒物:1.声辐射用于破坏灰尘和表面之间的粘合剂结合,迫使颗粒进入表面上下连续的模式; 并且,在表面上产生有界的涡流,在涡流中心具有吸力并且沿周边吹送空气的喷嘴。 喷嘴在切向方向上倾斜以在吸力区域内引起涡流运动。 涡流被认为是有界的,因为起源于向下喷射的流线被夹带回中心涡流。

    Piezoelectric Vibrational Energy Harvesting Systems Incorporating Parametric Bending Mode Energy Harvesting
    5.
    发明申请
    Piezoelectric Vibrational Energy Harvesting Systems Incorporating Parametric Bending Mode Energy Harvesting 有权
    压电振动能量收集系统结合参数弯曲模式能量收获

    公开(公告)号:US20100072759A1

    公开(公告)日:2010-03-25

    申请号:US12532322

    申请日:2008-03-21

    CPC分类号: H01L41/1136 H02N2/188

    摘要: Vibrational energy harvesting (VEH) structures that include resonant beams each having a fundamental resonance frequency and a parametric mode frequency and including at least one piezoelectric layer for generating electrical charge in response to each of fundamental-resonance excitation and parametric-mode excitation of that beam. Circuitry is provided for harvesting the electrical charge from the resonant beam. In some embodiments, the parametric mode frequency of the beam is tuned to be close to its fundamental resonance frequency so as to increase the effective bandwidth of a VEH structure. The effective bandwidth of a VEH structure can be further increased by tuning ones of multiple parametric-mode-enabled resonant beams to slightly different fundamental resonance frequencies and parametric mode frequencies.

    摘要翻译: 振动能量收集(VEH)结构,其包括每个具有基本共振频率和参数模式频率的谐振光束,并且包括至少一个用于响应于该光束的基本共振激发和参数模式激励中的每一个产生电荷的压电层 。 提供电路用于从谐振光束收集电荷。 在一些实施例中,波束的参数模式频率被调谐为接近其基本共振频率,以便增加VEH结构的有效带宽。 通过将多个参数模式使能的谐振光束中的一个调谐到略微不同的基本共振频率和参数模式频率,可以进一步提高VEH结构的有效带宽。