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118 条记录 (耗时 0.049 秒)

    Communicating with an Implanted Wireless Sensor
    53.
    发明申请
    Communicating with an Implanted Wireless Sensor 有权
    与移植无线传感器通信

    公开(公告)号：US20090115396A1

    公开(公告)日：2009-05-07

    申请号：US12349606

    申请日：2009-01-07

    申请人： Mark G. Allen ,  Michael Ellis ,  Jason Kroh ,  Donald J. Miller

    发明人： Mark G. Allen ,  Michael Ellis ,  Jason Kroh ,  Donald J. Miller

    IPC分类号： G01R23/12 ,  G01D1/14

    CPC分类号： G01R23/12 ,  A61B5/0002 ,  A61B5/0031 ,  A61B5/05 ,  A61B5/076 ,  A61B2560/0219 ,  A61B2560/0223 ,  G01D21/00 ,  G01F15/066 ,  G01R23/145

    摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.

    摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。

    Communicating with an implanted wireless sensor
    54.
    发明授权
    Communicating with an implanted wireless sensor 有权
    与植入式无线传感器进行通信

    公开(公告)号：US07439723B2

    公开(公告)日：2008-10-21

    申请号：US11748053

    申请日：2007-05-14

    申请人： Mark G. Allen ,  Michael Ellis ,  Jason Kroh ,  Donald J. Miller

    发明人： Mark G. Allen ,  Michael Ellis ,  Jason Kroh ,  Donald J. Miller

    IPC分类号： G01R23/12 ,  G01R35/00

    CPC分类号： G01R23/145 ,  A61B5/0002 ,  A61B5/0031 ,  A61B5/05 ,  A61B5/076 ,  A61B2560/0219 ,  A61B2560/0223 ,  G01F15/066 ,  G01R23/12 ,  H04L2027/0028 ,  H04L2027/0055 ,  H04L2027/0067

    摘要： The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.

    摘要翻译： 本发明通过调节激励信号的相位和频率直到激励信号的频率与传感器的谐振频率相匹配来确定传感器的谐振频率。 该系统以低占空比激励传感器，具有预定频率或一组频率和预定幅度的RF能量门控突发。 激励信号通过磁耦合耦合到传感器，并且感应传感器中的电流，其以传感器的谐振频率振荡。 系统通过磁耦合接收传感器的响铃响应，并确定传感器的谐振频率，用于计算测量的物理参数。 该系统使用一对锁相环来调节激励信号的相位和频率。

    Communicating with an implanted wireless sensor
    58.
    发明申请
    Communicating with an implanted wireless sensor 有权
    与植入式无线传感器进行通信

    公开(公告)号：US20070247138A1

    公开(公告)日：2007-10-25

    申请号：US11717967

    申请日：2007-03-14

    申请人： Donald Miller ,  Michael Ellis ,  Mark Allen

    发明人： Donald Miller ,  Michael Ellis ,  Mark Allen

    IPC分类号： G01R35/00

    CPC分类号： A61B5/0031 ,  A61B5/02014 ,  A61B5/073 ,  A61B5/076 ,  A61B2560/0219

    摘要： Aspects of the present invention determine the resonant frequency of a sensor by obtain sensor signals in response to three energizing signals, measure the phase of each sensor signal, and using a group phase delay to determine the resonant frequency. The phase difference between the first and second signal is determined as a first group phase delay. The phase difference between the second and third signal is determined as a second group phase delay. The first group phase delay and second group phase delay are compared. Based on the comparison, the system may lock on the resonant frequency of the sensor or adjust a subsequent set of three energizing signals.

    摘要翻译： 本发明的方面通过响应于三个激励信号获得传感器信号来确定传感器的谐振频率，测量每个传感器信号的相位，并且使用组相位延迟来确定谐振频率。 第一和第二信号之间的相位差被确定为第一组相位延迟。 第二和第三信号之间的相位差被确定为第二组相位延迟。 比较第一组相位延迟和第二组相位延迟。 基于比较，系统可以锁定传感器的谐振频率或调整后续的一组三个通电信号。

    Cable Assembly for a Coupling Loop
    59.
    发明申请
    Cable Assembly for a Coupling Loop 有权
    用于耦合回路的电缆组件

    公开(公告)号：US20070181331A1

    公开(公告)日：2007-08-09

    申请号：US11668601

    申请日：2007-01-30

    申请人： Jason Kroh ,  Michael Ellis ,  Donald Miller ,  Robert Refermat

    发明人： Jason Kroh ,  Michael Ellis ,  Donald Miller ,  Robert Refermat

    IPC分类号： H02G3/04

    CPC分类号： A61B5/02014 ,  A61B5/0031 ,  A61B5/064 ,  A61B5/07 ,  A61B2560/0219 ,  H01B11/20 ,  H04B5/0043 ,  Y10S128/903

    摘要： A coupling loop or antenna is provided that can be used with a system that determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. A cable attached to the coupling loop provides maximum isolation between the energizing signal and the sensor signal by maximizing the distance between the coaxial cables that carry the signals and maintaining the relative positions of the coaxial cables throughout the cable assembly.

    摘要翻译： 提供耦合环路或天线，其可以与通过调节激励信号的相位和频率来确定传感器的谐振频率的系统一起使用，直到通电信号的频率与传感器的谐振频率匹配。 连接到耦合回路的电缆通过使承载信号的同轴电缆之间的距离最大化并且保持同轴电缆在整个电缆组件中的相对位置来提供激励信号和传感器信号之间的最大隔离。