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    • 32. 发明申请
    • Device for detecting magnetic pole of synchronous ac motor, and magnetic pole detecting method therefor
    • 同步交流电机磁极检测装置及其磁极检测方法
    • US20050052175A1
    • 2005-03-10
    • US10495078
    • 2002-02-07
    • Kazutaka TakahashiYasunobu Harada
    • Kazutaka TakahashiYasunobu Harada
    • H02P6/22G01N27/00
    • H02P6/22
    • A magnetic-pole detecting system for synchronous AC motors and a magnetic-pole detecting method therefor are provided. The magnetic-pole detecting system for synchronous AC motors includes a position detector 10 for detecting the relative position between the moving element 3 and the stator of an AC motor 5; a phase-update command unit 52 for making a plurality of currents with different phases flow in coils 3a and 3b so that the moving element 3 moves to a plurality of stable points; a reversal command unit 56 for making currents flow in the coils 3a and 3b so that the moving element 3 reverses from the previous direction in which the moving element 3 has been moved by the phase-update command unit 52; a current cut-off command unit 54 for cutting off the currents flowing in the coils 3a and 3b when the position-detector 10 detects a movement of the moving element 3; a reversal-determining unit 64 for determining, based on a position-detecting signal from the position-detector 10, a direction in which the moving element has moved based on the phase-update command unit 52, and for determining that the determined direction has reversed between the previous and the present instances; and a stable-point-simulator for simulating a stable point by means of the phase of the currents flowing in the moving element 3 when the reversal-determining unit 64 has detected the reversal.
    • 提供了一种用于同步交流电动机的磁极检测系统及其磁极检测方法。 用于同步交流电动机的磁极检测系统包括用于检测运动元件3和交流电动机5的定子之间的相对位置的位置检测器10; 用于使具有不同相位的多个电流的相位更新指令单元52在线圈3a和3b中流动,使得移动元件3移动到多个稳定点; 用于使电流在线圈3a和3b中流动的反转指令单元56,使得移动元件3从相位更新指令单元52移动了移动元件3的先前方向反转; 电流切断指令单元54,用于当位置检测器10检测到移动元件3的移动时,切断在线圈3a和3b中流动的电流; 反转确定单元64,用于基于来自位置检测器10的位置检测信号,基于相位更新命令单元52确定移动元件已经移动的方向,并且确定所确定的方向具有 在之前和现在的情况之间相反; 以及用于当反转确定单元64检测到反转时通过在移动元件3中流动的电流的相位来模拟稳定点的稳定点模拟器。
    • 35. 发明授权
    • Servo controller
    • 伺服控制器
    • US07671553B2
    • 2010-03-02
    • US10552825
    • 2003-04-11
    • Kei TeradaTetsuaki NaganoKazutaka TakahashiTakashi Isoda
    • Kei TeradaTetsuaki NaganoKazutaka TakahashiTakashi Isoda
    • H02P7/00
    • G05B19/19G05B2219/41205
    • In a servo controller according to the invention, a position feedback correction unit (3) calculates a first-axis position feedback signal (pmfb1) based on a first-axis position (pm1) as a self-axis position, and a second-axis position (pm2) as an other-axis position; and a deviation between a model position (pa1) and the first-axis position feedback signal (pmfb1) is inputted from a subtracter (5) to a position control unit (4), which performs positional control to output a velocity command. A velocity feedback correction unit (6) calculates a first-axis velocity feedback signal (wmfb1) from a first-axis velocity (wm1) as the self-axis velocity, and a second-axis velocity (wm2) as the other-axis velocity; and the velocity control unit (8) adds a model velocity (wa1) and the velocity command outputted from the position control unit (5), and subtracts the first-axis velocity feedback signal (wmfb1) therefrom, and outputs a feedback torque command (Tfb1) based on the corrected velocity command.
    • 在根据本发明的伺服控制器中,位置反馈校正单元(3)基于作为自轴位置的第一轴位置(pm1)和第二轴位置(pmfb1)计算第一轴位置反馈信号(pmfb1) 位置(pm2)作为另一轴位置; 并且将模型位置(pa1)和第一轴位置反馈信号(pmfb1)之间的偏差从减法器(5)输入到执行位置控制以输出速度指令的位置控制单元(4)。 速度反馈校正单元(6)从第一轴速度(wm1)作为自身轴速度计算第一轴速度反馈信号(wmfb1),作为另一轴速度的第二轴速度(wm2) ; 并且速度控制单元(8)将模型速度(wa1)和从位置控制单元(5)输出的速度指令相加,并从其中减去第一轴速度反馈信号(wmfb1),并输出反馈转矩指令 Tfb1)。
    • 36. 发明授权
    • Method for manufacturing a split probe
    • 分离探针的制造方法
    • US07494575B2
    • 2009-02-24
    • US10822994
    • 2004-04-13
    • Shoji SadayamaYoshiharu ShirakawabeKazutaka Takahashi
    • Shoji SadayamaYoshiharu ShirakawabeKazutaka Takahashi
    • C23C14/34C23F1/00
    • G01Q20/04G01Q70/10
    • A method of manufacturing a split probe tip on a cantilever comprises providing a cantilever having a surface on which is formed a probe that projects outwardly from the surface at one end of the cantilever, irradiating and scanning a tip of the probe with a focused particle beam directed in a direction that is inclined relative to the surface of the cantilever to obtain an image of the probe tip, and determining the center of the probe tip from the image of the probe tip. Then a first channel is formed in the probe tip at the center thereof by irradiating and scanning the center of the probe tip with a focused particle beam to form a split probe tip having two spaced-apart probe tip parts. The forming step comprises using the focused particle beam to form a first channel section that extends radially inwardly from a periphery of the probe tip, and then using the focused particle beam to form a second channel section that extends radially inwardly from the periphery of the probe tip at a location opposite the first channel section and that connects to the first channel section to define therewith the first channel.
    • 在悬臂上制造分割探针尖端的方法包括提供具有表面的悬臂,其上形成有从悬臂的一端从表面向外突出的探针,用聚焦粒子束照射和扫描探针的尖端 指向相对于悬臂的表面倾斜的方向以获得探针尖端的图像,并且从探针尖端的图像确定探针尖端的中心。 然后,通过用聚焦粒子束照射和扫描探针尖端的中心,在探针尖端的中央形成第一通道,以形成具有两个间隔开的探针尖端部分的分离探针尖端。 成形步骤包括使用聚焦的粒子束形成从探针尖端的周边径向向内延伸的第一通道部分,然后使用聚焦的粒子束形成从探针的周边径向向内延伸的第二通道部分 尖端在与第一通道部分相对的位置处并且连接到第一通道部分以与第一通道部分限定第一通道。
    • 37. 发明授权
    • Control device for hydraulic actuator in piston
    • 活塞液压执行机构控制装置
    • US07434548B2
    • 2008-10-14
    • US11645669
    • 2006-12-27
    • Kazutaka TakahashiYuuichi ItoTakashi Kondo
    • Kazutaka TakahashiYuuichi ItoTakashi Kondo
    • F02B75/04
    • F02B75/044F02D15/02
    • In a control device for a hydraulic actuator, one end of an oil passage that is provided through a connecting rod, a crankshaft and a crankcase supporting the crankshaft is connected to a hydraulic chamber of a hydraulic actuator provided in a piston connected to the crankshaft via the connecting rod with the other end of the oil passage being connected to an oil reservoir and a hydraulic pressure source via a main switching valve. An auxiliary switching valve is provided in the connecting rod. The auxiliary switching valve causes a downstream side of the oil passage that leads to the hydraulic chamber to open into the crankcase when the main switching valve allows the oil passage to communicate with the oil reservoir.
    • 在用于液压执行器的控制装置中,通过连杆,曲轴和支撑曲轴的曲柄轴设置的油路的一端连接到设置在与曲轴连接的活塞中的液压致动器的液压室 油路另一端的连杆通过主切换阀连接到储油器和液压源。 辅助切换阀设在连杆中。 当主切换阀允许油路与储油器连通时,辅助切换阀使油路的下游侧通向液压室而进入曲轴箱。