公开(公告)号：US4866380A

公开(公告)日：1989-09-12

申请号：US237700

申请日：1988-08-26

申请人： Juergen Meins ,  Helmut Grosser ,  Gerhard Holzinger

发明人： Juergen Meins ,  Helmut Grosser ,  Gerhard Holzinger

IPC分类号： B60L13/08 ,  B60L13/00 ,  B60L13/06 ,  G01B7/00 ,  G01B7/02 ,  G01B7/14

CPC分类号： G01B7/023 ,  G01B7/02 ,  G01B7/14 ,  B60L2200/26

摘要： A method and an apparatus are provided for determining the distance of a probe, particularly a magnetic bearing or a magnetic levitation device, from a conductive reaction rail. The probe comprises at least one sensor having at least two magnetically-coupled coils disposed opposite the reaction rail. The coils generate an alternating magnetic field whose influences (eddy currents) are detected by the sensor and employed for identification of the distance. In order to achieve a high, useful voltage level, insensitivity to external electrical fields and potential fluctuations, as well as a small influence of system-conditioned magnetic fields, the influences of eddy currents induced in the reaction rail by the alternating magnetic field are acquired and utilized for the identification of the distance.

摘要翻译： 提供了一种用于确定探针，特别是磁性轴承或磁悬浮装置与导电反作用导轨的距离的方法和装置。 探头包括至少一个传感器，其具有与反作用轨相对设置的至少两个磁耦合线圈。 线圈产生交变磁场，其影响（涡流）由传感器检测并用于识别距离。 为了获得高的有用的电压电平，对外部电场的不敏感性和潜在的波动以及系统调节磁场的影响小，通过交变磁场获得在反应轨道中感应的涡流的影响 并用于识别距离。

公开(公告)号：US4606527A

公开(公告)日：1986-08-19

申请号：US684455

申请日：1984-12-21

申请人： Alexander Ziller ,  Helmut Grosser

发明人： Alexander Ziller ,  Helmut Grosser

IPC分类号： A63J1/02 ,  B66D1/12

CPC分类号： A63J1/028

摘要： For raising and lowering theatre scenery there is a horizontal track in the fly loft of the theatre, and several carriages, slidable along the track, are shiftable to any desired positions along the track, positions being chosen in accordance with possibly uneven or non-uniform weight distribution in the scenery to be handled. A series of cables, one for each carriage, runs from a common winding drum to one end of the track and then to an anchorage at the opposite end of the track. Each cable runs over two pulleys of its own individual carriage, and forms a downwardly extending loop between these two pulleys. A pulley block rides on each loop. All the pulley blocks are ordinarily connected to a scenery batten, from which the scenery is hung, but when specially required, individual pulley blocks may be used separately. Under no-load or minimum load conditions, the carriages may be easily moved along the track to place them in desired position, simply by manually pulling downwardly on one or the other of the two sections or reaches of the cable coming down from the carriage pulleys to the pulley block, the blocks having been lowered, of course, to a convenient working height close to the stage. Under normal load conditions, when the weight of scenery is suspended from the blocks, friction holds the carriages against movement.

摘要翻译： 为了升高和降低剧院风景，剧场的飞顶有一个水平的轨道，沿着轨道滑动的几个滑架可以沿着轨道移动到任何所需的位置，根据可能的不均匀或不均匀的选择 重量分布在待处理的风景中。 一系列电缆，一个用于每个托架，从普通的卷绕滚筒延伸到轨道的一端，然后到达轨道的相对端的锚固件。 每条电缆穿过自己的独立滑架的两个滑轮，并在这两个滑轮之间形成向下延伸的环。 一个滑轮块骑在每个回路上。 所有滑轮块通常连接到风景栏杆，风景挂起，但特别需要时，可以单独使用单个滑轮组。 在无负载或最小负载条件下，滑架可以容易地沿着轨道移动以将它们放置在期望的位置，简单地通过手动向下拉动两个部分中的一个或另一个或从滑架滑轮下来的电缆的到达部分 到滑轮块时，块被降低，当然是靠近舞台的方便的工作高度。 在正常负载条件下，当风挡重量从块上悬挂时，摩擦力使车架抵抗运动。

公开(公告)号：US4812757A

公开(公告)日：1989-03-14

申请号：US927755

申请日：1986-11-05

申请人： Jurgen Meins ,  Helmut Grosser

发明人： Jurgen Meins ,  Helmut Grosser

IPC分类号： G01B7/02 ,  G01B7/14 ,  B60L13/06 ,  G01N27/72 ,  G01R33/00

CPC分类号： G01B7/14 ,  G01B7/023

摘要： In magnetic bearings and magnetic suspension devices, sensors (4), as they are used for bearing regulation of support and guide magnets in magnetic transportation technology, continuously measure the distance of a magnet (6) from a reaction rail (7), in order to obtain a signal with which the magnet (6) is controlled with regard to the energizing current in such a way that it remains suspended at the predetermined distance. In known devices, there is no accurate monitoring of the sensor signal, which can result in faulty regulation of the excitation if the sensor signal is faulty, which represents a significant safety risk. Accurate monitoring of the sensor function, in addition to the distance measurement, is acheived by having, in addition to the measurement coil (1) to which alternating voltage is applied, a second reference coil (2), which has only a slight magnetic coupling with the rail (7) and to which the same voltage as the measurement coil is applied, and that the difference current of the two coils is used to measure the distance and the difference current when an additional impedance is periodically switched in is used to check the device.

摘要翻译： 在磁性轴承和磁悬浮装置中，传感器（4）用于在磁性运输技术中用于支撑和导向磁体的轴承调节，依次顺序地测量磁体（6）与反作用轨道（7）的距离 以获得关于激励电流控制磁体（6）的信号，使得其以预定距离保持悬挂。 在已知的设备中，传感器信号没有准确的监测，如果传感器信号有故障，这可能导致激励的故障调节，这是一个重大的安全隐患。 除了距离测量之外，还通过除了施加有交流电压的测量线圈（1）之外还具有仅具有轻微磁耦合的第二参考线圈（2）来实现对传感器功能的精确监控 与轨道（7）并且施加与测量线圈相同的电压，并且当周期性地切换附加阻抗时，两个线圈的差电流用于测量距离和差电流，用于检查 装置。