公开(公告)号：US20130113484A1

公开(公告)日：2013-05-09

申请号：US13290493

申请日：2011-11-07

Applicant: Santosh Kumar ,  Prasidh Ramabadran ,  Rohit Parakh

Inventor： Santosh Kumar ,  Prasidh Ramabadran ,  Rohit Parakh

IPC: G01R33/44

CPC classification number: G01R33/3628 ,  G01R33/3657 ,  G01R33/583

Abstract: In one embodiment, an apparatus for automatically testing and tuning a RF coil is provided. The apparatus comprises a digital frequency generator for generating a stimulus, the stimulus comprising a range of radio frequency signals having different frequencies, a radio frequency coupler configured for applying the stimulus to the RF coil so as to enable the RF coil to generate a reflected signal in response to the stimulus applied, a radio frequency detector for detecting the reflected signal and a signal processing unit for processing the reflected signal, so as to identify the tuned resonant frequency of the RF coil and further configured for calculating return loss at the RF coil based on the reflected signal.

Abstract translation: 在一个实施例中，提供了用于自动测试和调谐RF线圈的装置。 该装置包括用于产生刺激的数字频率发生器，所述刺激包括具有不同频率的射频信号的范围;射频耦合器，被配置为将激励施加到RF线圈，以使RF线圈能够产生反射信号 响应于所施加的刺激，用于检测反射信号的射频检测器和用于处理反射信号的信号处理单元，以便识别RF线圈的调谐谐振频率，并进一步被配置为计算RF线圈处的回波损耗 基于反射信号。

公开(公告)号：US09201127B2

公开(公告)日：2015-12-01

申请号：US13290493

申请日：2011-11-07

Applicant: Santosh Kumar ,  Prasidh Ramabadran ,  Rohit Parakh

Inventor： Santosh Kumar ,  Prasidh Ramabadran ,  Rohit Parakh

IPC: G01R33/36 ,  G01R33/58

CPC classification number: G01R33/3628 ,  G01R33/3657 ,  G01R33/583

Abstract: In one embodiment, an apparatus for automatically testing and tuning a RF coil is provided. The apparatus comprises a digital frequency generator for generating a stimulus, the stimulus comprising a range of radio frequency signals having different frequencies, a radio frequency coupler configured for applying the stimulus to the RF coil so as to enable the RF coil to generate a reflected signal in response to the stimulus applied, a radio frequency detector for detecting the reflected signal and a signal processing unit for processing the reflected signal, so as to identify the tuned resonant frequency of the RF coil and further configured for calculating return loss at the RF coil based on the reflected signal.

Abstract translation: 在一个实施例中，提供了用于自动测试和调谐RF线圈的装置。 该装置包括用于产生刺激的数字频率发生器，所述刺激包括具有不同频率的射频信号的范围;射频耦合器，被配置为将激励施加到RF线圈，以使RF线圈能够产生反射信号 响应于所施加的刺激，用于检测反射信号的射频检测器和用于处理反射信号的信号处理单元，以便识别RF线圈的调谐谐振频率，并进一步被配置为计算RF线圈处的回波损耗 基于反射信号。