公开(公告)号：US08228064B2

公开(公告)日：2012-07-24

申请号：US12710833

申请日：2010-02-23

Applicant: Ernest Schaefer

Inventor： Ernest Schaefer

IPC: G01V3/00 ,  G01V3/14

CPC classification number: G01R33/3852

Abstract: A magnetic field gradient generating system for a NMR system, includes at least one set of gradient coils, preferably arranged according to three axes of a spatial referential system, and a controlled power supplying unit for the gradient coils, the power supplying unit including, for each gradient coil, a converter/amplifier module, the modules being fed with pulse sequences of digital gradient data provided as word streams by an adapted gradient data generator according to a pulse program, each arrangement of a gradient coil and a converter/amplifier module forming a gradient channel. The power supplying unit also includes an automatic blanking system which scans the gradient data words sent to the [converter/amplifier] modules and, according to sensed values, selectively delivers blanking signals to be applied to the modules in order to disable the power stages of their respective amplifiers connected to the gradient coils, when no current is to be fed to the coils.

Abstract translation: 用于NMR系统的磁场梯度产生系统包括至少一组倾斜线圈，优选地根据空间参考系的三个轴布置，以及用于梯度线圈的受控供电单元，所述供电单元包括： 每个梯度线圈，转换器/放大器模块，所述模块馈送有根据脉冲程序由适配的梯度数据发生器作为字流提供的数字梯度数据的脉冲序列，梯度线圈和转换器/放大器模块的每个排列形成 梯度通道。 供电单元还包括自动消隐系统，其扫描发送到[转换器/放大器]模块的梯度数据字，并且根据感测值，选择性地传送要施加到模块的消隐信号，以便禁用功率级 当没有电流被馈送到线圈时，它们各自的放大器连接到梯度线圈。

公开(公告)号：US08736268B2

公开(公告)日：2014-05-27

申请号：US12912093

申请日：2010-10-26

Applicant: Ernest Schaefer

Inventor： Ernest Schaefer

IPC: G01R33/385 ,  G06F9/22 ,  G06F9/30

CPC classification number: G01R33/3852 ,  G01R33/385 ,  G06F9/22 ,  G06F9/3001 ,  G06F9/30014

Abstract: A device for real-time correction of set-point signals intended to receive at the input set-point signals and to deliver at its output set-point signals that are modified to compensate for defects, negative effects or the like subsequently encountered during the processing and/or the application of the set-point signals. This device (1) includes at least one circuit (1′) that is based on a microprogrammed structure and composed of several subassemblies (3, 4, 5, 6, 6′) that work with digital components essentially including a micro-sequencer (3) forming a counter, a memory (4) for storing micro-instructions, and a processing unit (5) combined with at least one working memory (6, 6′) and integrating arithmetic calculation modules (7,7′), whereby the processing unit (5) modifies the data of set-point signals in accordance with the micro-instructions that are addressed by the micro-sequencer (3) and by taking into account the correction coefficients that are provided.

Abstract translation: 用于实时校正设定点信号的设备，用于在输入设定点处接收信号并在其输出设定点处传送被修改以补偿在处理期间随后遇到的缺陷，负面影响等的信号 和/或设置点信号的应用。 该装置（1）包括至少一个基于微程序结构并由几个子组件（3,4,5,6,6'）构成的电路（1'），该组件与基本上包括微定序器的数字组件 3）形成计数器，用于存储微指令的存储器（4）以及与至少一个工作存储器（6,6'）组合的积分算术计算模块（7,7'）的处理单元（5），由此 处理单元（5）根据由微定序器（3）寻址的微指令并考虑所提供的校正系数来修改设定点信号的数据。