公开(公告)号：US5227728A

公开(公告)日：1993-07-13

申请号：US786828

申请日：1991-11-01

申请人： Leon Kaufman ,  Joseph W. Carlson ,  Richard Gran

发明人： Leon Kaufman ,  Joseph W. Carlson ,  Richard Gran

IPC分类号： A61B5/055 ,  G01R33/12 ,  G01R33/381 ,  G01R33/385 ,  G01R33/389

CPC分类号： G01R33/385 ,  G01R33/389

摘要： Electromagnet coil driving circuitry in a magnetic resonance imaging system is modified to include a flux-driven closed-loop real-time feedback control. The result is more accurate and efficient control of the net actual gradient flux generated by the coil even in the presence of magnetic circuit materials exhibiting hysteresis effects and/or electrical conductors giving rise to eddy current effects. Such driver control can be used to simultaneously correct the magnetic flux changes induced by environmental, ambient or other outside disturbances affecting the net magnetic field within a patient imaging volume of a magnetic resonance imaging system.

摘要翻译： 磁共振成像系统中的电磁线圈驱动电路被修改为包括磁通驱动的闭环实时反馈控制。 结果是即使在存在导致涡流效应的磁滞效应的磁路材料和/或电导体的情况下，线圈产生的净实际梯度通量的更精确和有效的控制。 可以使用这样的驱动器控制来同时校正由影响磁共振成像系统的患者成像体积内的净磁场的环境，环境或其它外部干扰引起的磁通量变化。

公开(公告)号：US5560589A

公开(公告)日：1996-10-01

申请号：US501624

申请日：1995-07-12

申请人： Richard Gran ,  Michael Proise

发明人： Richard Gran ,  Michael Proise

IPC分类号： B60G9/02 ,  B60G17/033 ,  B61F5/24 ,  F16F13/00 ,  B60G17/01

CPC分类号： B60G17/033 ,  B60G9/022 ,  B61F5/245

摘要： An active vibration damping arrangement which is adapted to improve passenger ride comfort in various types and categories of transport vehicles; especially such as, but not limited to railroads, buses, automotive devices, maglev (magnetic levitation) vehicles, trains and people mover devices in general. In essence, pursuant to specific physical applications and uses, the active motion and vibration damping arrangement is intended to provide a suitable supplemental damping system installed in addition to currently employed so-called passive vibration dampers which are widely employed in connection with such vehicles, transportation devices, vibration-susceptive machinery and the like. The active motion and vibration damping arrangement includes a pair of actuators which; for example, may be constituted from hydraulic cylinder piston units or the like, each of which has respectively one end thereof connected, for instance, to a railroad car body, and the opposite end to the compartment floor of a passenger compartment which is subjected to vibrations and/or swaying and heaving motions encountered by the car body transmitted thereto due to varying road bed or rail conditions or irregularities transmitted through the wheel, truck, car body and, in essence, the normally installed passive vibration damping arrangement, towards the compartment floor.

摘要翻译： 一种主动减振装置，适用于改善各种类型和类别的运输车辆的乘客舒适性; 特别是例如但不限于铁路，公共汽车，汽车装置，磁悬浮（磁悬浮）车辆，火车和人动机装置。 实质上，根据具体的物理应用和用途，主动运动和减振装置旨在提供一种适合的补充阻尼系统，除了目前使用的所谓的被动振动阻尼器之外，这些被动振动阻尼器广泛应用于与这种车辆，运输 装置，振动感应机械等。 主动运动和减振装置包括一对致动器; 例如，可以由液压缸活塞单元等构成，其各自的一端分别连接到铁路车身，并且与乘客舱的隔室底板相对的一端经受 由于通过车轮，卡车，车体以及本质上通常安装的被动减振装置的不同路面或轨道条件或不规则性而向其传递的车体遇到的振动和/或摇摆和起伏运动， 地板。

公开(公告)号：US5416711A

公开(公告)日：1995-05-16

申请号：US138736

申请日：1993-10-18

申请人： Richard Gran ,  Lim Cheung

发明人： Richard Gran ,  Lim Cheung

IPC分类号： G08G1/04 ,  G08G1/01

CPC分类号： G08G1/04

摘要： An infra-red sensor system for all weather, day and night traffic surveillance of ground based vehicles. The infra-red sensor system comprises system comprises an infra-red, focal plane array detector, signal processors, a communications interface and a central computer. The infra-red, focal plane array detector senses the heat emitted from vehicles passing within the field of view. Information collected from the array detector is input to signal processors which are programmed with tracking algorithms and other application specific algorithms to extract and calculate meaningful traffic data from the infra-red image captured by the array detector. The meaningful data includes the location, speed and acceleration of all vehicles passing within the field of view of the array detector. The information from the signal processors is transmitted to the central computer via the communications interface for further processing and dissemination of information.

摘要翻译： 用于地面车辆的所有天气，日夜交通监控的红外传感器系统。 红外传感器系统包括系统，包括红外，焦平面阵列检测器，信号处理器，通信接口和中央计算机。 红外焦平面阵列检测器检测通过视野内的车辆发出的热量。 从阵列检测器收集的信息被输入到用跟踪算法和其他专用算法编程的信号处理器，以从阵列检测器捕获的红外图像中提取和计算有意义的业务数据。 有意义的数据包括在阵列检测器的视场内通过的所有车辆的位置，速度和加速度。 来自信号处理器的信息经由通信接口传送到中央计算机，用于进一步处理和传播信息。