公开(公告)号：US06785314B2

公开(公告)日：2004-08-31

申请号：US09876032

申请日：2001-06-08

申请人： Atushi Ooyama ,  Shinichi Sekiguchi ,  Hiroyuki Shinozaki ,  Toshimitsu Barada ,  Toshiharu Nakazawa

发明人： Atushi Ooyama ,  Shinichi Sekiguchi ,  Hiroyuki Shinozaki ,  Toshimitsu Barada ,  Toshiharu Nakazawa

IPC分类号： H01S309

CPC分类号： F16C32/0444 ,  F16C32/0489 ,  H01S3/036 ,  H01S3/225

摘要： There is provided an electric discharge gas laser comprising a housing, a rotating fan, a bearing device and a control. The housing contains a laser gas. The rotating fan is provided in the housing to circulate the gas in the housing. The bearing device magnetically supports a rotating shaft. The bearing device is provided with a sensor device comprising a sensor and a signal processor. The sensor senses the position of the rotating shaft to generate signals indicating the position of the rotating shaft. The signal processor receives and processes the signals delivered from the sensor to output processed signals. The control is separated from the bearing device and is functionally associated with the bearing device to receive the processed signal from the sensor device for controlling the bearing device on the basis of the processed signals.

摘要翻译： 提供一种放电气体激光器，其包括壳体，旋转风扇，轴承装置和控制装置。 外壳包含激光气体。 旋转风扇设置在壳体中以使气体在壳体中循环。 轴承装置磁性地支撑旋转轴。 轴承装置设置有包括传感器和信号处理器的传感器装置。 传感器感测旋转轴的位置以产生指示旋转轴的位置的信号。 信号处理器接收并处理从传感器传送的信号以输出处理的信号。 该控制与轴承装置分离，并且在功能上与轴承装置相关联，以接收来自传感器装置的经处理的信号，用于根据经处理的信号控制轴承装置。

公开(公告)号：US20070075673A1

公开(公告)日：2007-04-05

申请号：US11527502

申请日：2006-09-27

申请人： Toshiharu Nakazawa ,  Atushi Ooyama

发明人： Toshiharu Nakazawa ,  Atushi Ooyama

IPC分类号： H02P1/46

CPC分类号： H02P6/16 ,  H02K21/14 ,  H02K29/12

摘要： A brushless synchronous motor is provided in a simple configuration and at a low cost. The brushless synchronous motor comprises a rotor having salient magnets arranged in a circumferential direction, a stator having driving magnetic poles arranged in the circumferential direction, and an exciting coil wound around each driving magnetic pole, where the rotor is made in a non-circular profile. For example, the rotor may comprise a cylindrical body which has at least one flat surface perpendicular to one magnetic pole direction of the rotor, or a cylindrical body having an elliptic profile with a longer diameter in one magnetic pole direction of the rotor. A detector circuit is associated with each of a predetermined number of exciting coils for outputting a detection signal indicative of the impedance of the exciting coil in accordance with the distance between the driving magnetic pole and rotor, to detect a rotating angle of the rotor.

摘要翻译： 以简单的结构和低成本提供无刷同步电动机。 无刷同步电动机包括沿圆周方向布置的突出磁体的转子，具有沿周向布置的驱动磁极的定子和缠绕在每个驱动磁极上的励磁线圈，其中转子被制成非圆形轮廓 。 例如，转子可以包括具有垂直于转子的一个磁极方向的至少一个平坦表面的圆柱体，或者具有在转子的一个磁极方向上具有较长直径的椭圆形轮廓的圆柱体。 检测器电路与预定数量的励磁线圈中的每一个相关联，用于根据驱动磁极和转子之间的距离输出指示励磁线圈的阻抗的检测信号，以检测转子的旋转角度。