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公开(公告)号：US10094894B2
公开(公告)日：2018-10-09
申请号：US14632154
申请日：2015-02-26
摘要： An arrangement includes a superconducting split ring resonator, a cryostat, and a copper coil. The resonator is arranged in the cryostat and includes at least one ring-shaped conductor made of a superconducting material and including an opening and a taper. The copper coil may be used to transmit a MRI excitation signal. This signal causes a current to be induced in the conductor that leads to the breakdown of the superconductivity. The conductor is detuned and therefore no longer develops an interfering effect. It is possible for the effect of the breakdown of superconductivity to be used for detuning in a targeted manner. After the transmission is complete, the conductor returns into the superconducting state and acts as a superconducting reception antenna for the MRI measurement signal. The copper coil is inductively coupled to the conductor and configured to read out the signal induced in the conductor.
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公开(公告)号：US20150241528A1
公开(公告)日：2015-08-27
申请号：US14632154
申请日：2015-02-26
CPC分类号： G01R33/3657 , G01R33/34023
摘要： An arrangement includes a superconducting split ring resonator, a cryostat, and a copper coil. The resonator is arranged in the cryostat and includes at least one ring-shaped conductor made of a superconducting material and including an opening and a taper. The copper coil may be used to transmit a MRI excitation signal. This signal causes a current to be induced in the conductor that leads to the breakdown of the superconductivity. The conductor is detuned and therefore no longer develops an interfering effect. It is possible for the effect of the breakdown of superconductivity to be used for detuning in a targeted manner. After the transmission is complete, the conductor returns into the superconducting state and acts as a superconducting reception antenna for the MRI measurement signal. The copper coil is inductively coupled to the conductor and configured to read out the signal induced in the conductor.
摘要翻译： 一种装置包括超导分裂环谐振器，低温恒温器和铜线圈。 谐振器布置在低温恒温器中，并且包括由超导材料制成并且包括开口和锥形的至少一个环形导体。 铜线圈可用于传输MRI激励信号。 该信号导致导体中导致的电流导致超导性的破坏。 导体失谐，因此不再产生干扰效应。 有可能以有目的的方式将超导性破坏的效果用于失谐。 传输完成后，导体返回超导状态，作为MRI测量信号的超导接收天线。 铜线圈感应耦合到导体并且被配置为读出在导体中感应的信号。
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公开(公告)号：US20170219667A1
公开(公告)日：2017-08-03
申请号：US15422136
申请日：2017-02-01
CPC分类号： G01R33/3685 , G01R33/30
摘要： A line with a standing wave trap for a magnetic resonance tomograph, and a patient couch and a magnetic resonance tomograph with the line are provided. The line includes a carrier material, a first conductor track that extends along the carrier material in the carrier material or on the carrier material, and a first conductor loop. The first conductor loop is arranged on or in the carrier material. The first conductor loop has a signal coupling to the first conductor track. The first conductor loop has a first interruption that is bridged with a first capacitance.
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公开(公告)号：US20150048823A1
公开(公告)日：2015-02-19
申请号：US14340990
申请日：2014-07-25
IPC分类号： G01R33/34
CPC分类号： G01R33/34 , G01R33/341 , G01R33/3415 , G01R33/3642 , G01R33/3685
摘要： An antenna apparatus is described, for receiving magnetic resonance signals from an examination object during magnetic resonance imaging using a magnetic resonance device. The antenna apparatus includes a resonator with a plurality of electrically conductive conductor loops, which are each interrupted by a number of electrically insulating slits. The antenna apparatus further includes a carrier substrate for holding the conductor loops and a cable connection apparatus having a number of shielding apparatuses. At least one of the number of shielding apparatuses provides a conductive coupling to a virtual ground of at least one conductor loop. Moreover, an antenna array apparatus, a magnetic resonance system and a method for receiving magnetic resonance signals from an examination object during magnetic resonance imaging using a magnetic resonance device are described.
摘要翻译： 描述了一种用于在使用磁共振装置的磁共振成像期间从检查对象接收磁共振信号的天线装置。 天线装置包括具有多个导电导体环的谐振器，每个导电导体环被多个电绝缘狭缝间断。 天线装置还包括用于保持导体环的载体基板和具有多个屏蔽装置的电缆连接装置。 多个屏蔽装置中的至少一个提供与至少一个导体环路的虚拟接地的导电耦合。 此外，描述了使用磁共振装置的磁共振成像期间的天线阵列装置，磁共振系统和从检查对象接收磁共振信号的方法。
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公开(公告)号：US10031192B2
公开(公告)日：2018-07-24
申请号：US14340990
申请日：2014-07-25
IPC分类号： G01R33/561 , G01R33/34 , G01R33/341 , G01R33/36 , G01R33/3415
摘要： An antenna apparatus provides for receiving magnetic resonance signals from an examination object during magnetic resonance imaging using a magnetic resonance device. The antenna apparatus includes a resonator with a plurality of electrically conductive conductor loops, which are each interrupted by a number of electrically insulating slits. The antenna apparatus further includes a carrier substrate for holding the conductor loops and a cable connection apparatus having a number of shielding apparatuses. At least one of the number of shielding apparatuses provides a conductive coupling to a virtual ground of at least one conductor loop.
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公开(公告)号：US20100117650A1
公开(公告)日：2010-05-13
申请号：US12612831
申请日：2009-11-05
申请人： Peter Cork , Sebastian Martius , Markus Vester
发明人： Peter Cork , Sebastian Martius , Markus Vester
CPC分类号： G01R33/3692 , G01R33/3415 , G01R33/3621 , H03F7/04
摘要： A two port parametric amplifier has a first port that receives an input signal to be amplified and upconverted and a second port that receives a local oscillator signal. The amplified upconverted input signal is emitted as an output at upper and lower sideband frequencies. The amplifier further has a pair of varactor diodes connected between the first port and the second port. The diodes are connected in parallel from the first port and in series from the second port.
摘要翻译： 双端口参数放大器具有接收要放大和上变频的输入信号的第一端口和接收本地振荡器信号的第二端口。 放大的上变频输入信号作为上边和下边带频率处的输出发射。 放大器还具有连接在第一端口和第二端口之间的一对变容二极管。 二极管与第一端口并联连接并与第二端口串联连接。
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公开(公告)号：US09733321B2
公开(公告)日：2017-08-15
申请号：US13854928
申请日：2013-04-01
申请人： Sebastian Martius , Markus Vester
发明人： Sebastian Martius , Markus Vester
IPC分类号： G01R33/34 , G01R33/36 , G01R33/3415
CPC分类号： G01R33/34 , G01R33/34015 , G01R33/3415 , G01R33/3692
摘要： A magnetic resonance tomography apparatus includes a receiving device having a number of magnetic resonance receive antennas for receiving a magnetic resonance signal in response to a radio frequency signal transmitted at a magnetic resonance frequency. A respective magnetic resonance receive antenna is connected to a parametric mixer. A receive circuit formed hereby is provided inside the cryostat and is coupled via a contactless communication interface to an evaluation circuit provided outside the cryostat. The evaluation circuit includes a local oscillator device for generating an auxiliary signal at an auxiliary frequency. The auxiliary signal is transmitted via the contactless communication interface to the receive circuit. The receive circuit is configured such that a mixed signal having a mixed frequency is generated via the parametric mixer from the auxiliary signal and the magnetic resonance signal and transmitted via the contactless communication interface to the evaluation circuit.
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8.发明申请METHOD AND DEVICE FOR CONTROLLING A SIGNAL WITH A PLURALITY OF INDEPENDENT COMPONENTS 有权用于控制具有多个独立组件的信号的方法和装置公开(公告)号：US20120224647A1
公开(公告)日：2012-09-06
申请号：US13221652
申请日：2011-08-30
IPC分类号： H04L27/00
CPC分类号： G01R33/3607
摘要： A method for controlling a signal with a plurality of independent components is provided. The signal is fed as an input signal via an input path to a control path that supplies an output signal. The output signal is fed via an output path to a control apparatus controlling the input signal. A coupling signal is determined in a coupling determination apparatus. On the basis of the coupling signal, the independent components are decoupled in a decoupling apparatus, as a result of which, a decoupled output signal is generated. Components of the decoupled output signal are decoupled from the components of the input signal. The decoupled output signal is fed as a control variable to the control apparatus. The control apparatus controls each independent component separately on the basis of a desired signal with a diagonal controller and outputs the input signal as a manipulated variable.
摘要翻译： 提供了一种用多个独立部件控制信号的方法。 信号通过输入路径作为输入信号馈送到提供输出信号的控制路径。 输出信号通过输出路径馈送到控制输入信号的控制装置。 在耦合确定装置中确定耦合信号。 在耦合信号的基础上，独立分量在去耦装置中解耦，其结果是产生解耦输出信号。 去耦输出信号的分量与输入信号的分量去耦。 去耦输出信号作为控制变量馈送给控制装置。 控制装置基于具有对角线控制器的期望信号分别控制各独立分量，并输出输入信号作为操作变量。
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公开(公告)号：US09841474B2
公开(公告)日：2017-12-12
申请号：US13221652
申请日：2011-08-30
CPC分类号： G01R33/3607
摘要： A method for controlling a signal with a plurality of independent components is provided. The signal is fed as an input signal via an input path to a control path that supplies an output signal. The output signal is fed via an output path to a control apparatus controlling the input signal. A coupling signal is determined in a coupling determination apparatus. On the basis of the coupling signal, the independent components are decoupled in a decoupling apparatus, as a result of which, a decoupled output signal is generated. Components of the decoupled output signal are decoupled from the components of the input signal. The decoupled output signal is fed as a control variable to the control apparatus. The control apparatus controls each independent component separately on the basis of a desired signal with a diagonal controller and outputs the input signal as a manipulated variable.
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公开(公告)号：US08283927B2
公开(公告)日：2012-10-09
申请号：US12612831
申请日：2009-11-05
申请人： Peter Cork , Sebastian Martius , Markus Vester
发明人： Peter Cork , Sebastian Martius , Markus Vester
IPC分类号： G01V3/00
CPC分类号： G01R33/3692 , G01R33/3415 , G01R33/3621 , H03F7/04
摘要： A two port parametric amplifier has a first port that receives an input signal to be amplified and upconverted and a second port that receives a local oscillator signal. The amplified upconverted input signal is emitted as an output at upper and lower sideband frequencies. The amplifier further has a pair of varactor diodes connected between the first port and the second port. The diodes are connected in parallel from the first port and in series from the second port.
摘要翻译： 双端口参数放大器具有接收要放大和上变频的输入信号的第一端口和接收本地振荡器信号的第二端口。 放大的上变频输入信号作为上边带和下边带频率处的输出发射。 放大器还具有连接在第一端口和第二端口之间的一对变容二极管。 二极管与第一端口并联连接并与第二端口串联连接。
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