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1. 发明专利

JP2008122363A Device and method for compensating magnetic field turbulence in highly uniform magnetic field 有权
标题翻译：用于在高均匀磁场中补偿磁场湍流的装置和方法
公开(公告)号：JP2008122363A
公开(公告)日：2008-05-29
申请号：JP2007196531
申请日：2007-07-27
申请人： Bruker Biospin Ag , ブルーカーバイオシュピンアー・ゲー
发明人： SCHENKEL MICHAEL , HENSEL ROLF , TSCHOPP WERNER
IPC分类号： G01R33/389
CPC分类号： G01R33/3875 , G01R33/389 , G01R33/56509 , G01R33/56563
摘要： PROBLEM TO BE SOLVED: To provide a device and method not only capable of compensating a turbulent magnetic field to secure thereby a high signal-to-noise ratio, but also capable improving surely the compensation for a periodic magnetic field turbulence, in particular, having a frequency component with high magnetic field turbulence.
SOLUTION: The device for compensating the magnetic field turbulence in a magnetic field having high magnetic field uniformity includes a magnetic field detector 31 for detecting an interference signal U
in to stabilize, in particular, an H0 magnetic field of an MR measuring system, a control loop for processing the detected interference signal U
in , and at least one compensation coil 34 transferred with a detected and processed output signal U
out , and for generating a compensation magnetic field for compensating the interference signal U
in , at least one out of the control loops is provided with a plurality selection filter system 35 including one or a plurality of selection filter elements connected in parallel, and synchronized with a frequency value of the interference signal U
in with the center frequency to be compensated, and an output part of each filter element is connected to at least one of the compensation coils 34.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种不仅能够补偿湍流磁场从而确保高信噪比，而且能够确实地提高周期性磁场湍流补偿的装置和方法，具体地，具有具有高磁场湍流的频率分量。解决方案：用于补偿具有高磁场均匀性的磁场中的磁场湍流的装置包括用于检测中的干扰信号U 的磁场检测器31，特别是H0 MR测量系统的磁场，用于处理中检测到的干扰信号U 的控制回路以及用检测和处理的输出信号U SB SB输出的至少一个补偿线圈34 >，并且为了产生用于补偿中的干扰信号U 的补偿磁场，控制回路中的至少一个设置有多个选择过滤器系统35，所述多个选择过滤器系统35包括一个或多个选择过滤器元件并联并与要补偿的中心频率的中的干扰信号U 的频率值同步，并且每个滤波器元件的输出部分连接到至少一个补偿线圈34 版权所有（C） 2008年，日本特许厅和INPIT

2. 发明专利

DE102006035949B4 未知
公开(公告)号：DE102006035949B4
公开(公告)日：2009-11-26
申请号：DE102006035949
申请日：2006-07-31
申请人： BRUKER BIOSPIN AG
发明人： SCHENKEL MICHAEL , HENSEL ROLF , TSCHOPP WERNER
IPC分类号： G01R33/3875 , G01R33/389 , G01R33/565
摘要： The device has a field detector (31) for detecting interfering signals, control loop for processing detected interfering signals, and compensation coil (34) to generate a correction field for compensating the interfering signals. A multi-selective filter system (35) has selective filter elements comprising center frequencies tuned to frequency values of the interfering signals to be compensated. Outputs of the filter elements are connected to one of the compensation coils, one of the field detectors, where tuning of the center frequencies of the system is effected in an adaptive manner. An independent claim is also included for a method for compensating field disruptions in magnetic fields of electromagnets.

3. 发明专利

DE102006035949A1 未知
公开(公告)号：DE102006035949A1
公开(公告)日：2008-02-14
申请号：DE102006035949
申请日：2006-07-31
申请人： BRUKER BIOSPIN AG
发明人： SCHENKEL MICHAEL , HENSEL ROLF , TSCHOPP WERNER
IPC分类号： G01R33/3875 , G01R33/389
摘要： The device has a field detector (31) for detecting interfering signals, control loop for processing detected interfering signals, and compensation coil (34) to generate a correction field for compensating the interfering signals. A multi-selective filter system (35) has selective filter elements comprising center frequencies tuned to frequency values of the interfering signals to be compensated. Outputs of the filter elements are connected to one of the compensation coils, one of the field detectors, where tuning of the center frequencies of the system is effected in an adaptive manner. An independent claim is also included for a method for compensating field disruptions in magnetic fields of electromagnets.

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