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    • 11. 发明专利
    • Positioning mechanism
    • 定位机制
    • JPS6125221A
    • 1986-02-04
    • JP14556884
    • 1984-07-13
    • Hitachi Ltd
    • YOSHIZAKI ATSUHIRO
    • H01L21/30B23Q1/62B23Q5/50G05D3/00H01L21/027H01L21/67H01L21/68
    • B23Q5/50B23Q1/621
    • PURPOSE:To facilitate easy positioning of a mobile part and to eliminate the mechanical vibrations for a positioning mechanism, by using a mobile matter which is formed partially as a conductor part and a magnetic field generating means and attaining a brake function with an eddy current produced at the conductor part when the mobile matter is shifted. CONSTITUTION:Flat plate type electric good conductor parts 8 and 9 are attached to a pair of sides parallel to the moving direction of a Y-direction mobile table 2 set at a base part 1. Then an electromagnetic core containing C- shaped cores 4 and 5 applied with windings 13 and 14 is supported by the part 1 as if both parts 8 and 9 were held between cores 4 and 5. While an X-direction mobile table 3 has the same constitution as the table 2 and contains an electromagnetic core consisting of cores 6 and 7 applied with windings 15 and 16 together with good conductor parts 10 and 11. Then both tables 2 and 3 are moved and the current is supplied to windings 13-16. Thus an eddy current is induced at conductors 8-11 respectively to produce a damping effect that eliminates the movement energy with the loss of Joule heat. This ensures a make/break action at a high speed and repetition with high frequency.
    • 目的:为了方便移动部件的定位和消除定位机构的机械振动,通过使用部分地形成为导体部分的移动物体和磁场产生装置,并获得产生涡流的制动功能 在移动物体移动时在导体部分。 构成:平板型电导体部8和9被安装在平行于设置在基部1的Y方向移动台2的移动方向的一对侧面上。然后,将包含C形芯4和 如图5所示,施加有绕组13和14的5被支撑在部分1上,好像两个部分8和9都保持在芯4和5之间。而X方向移动台3具有与表2相同的结构,并且包含电磁芯 芯子6和7与良导体部分10和11一起施加绕组15和16.然后两个表2和3移动,电流被提供给绕组13-16。 因此,分别在导体8-11处产生涡电流,以产生消除焦耳热损失的运动能量的阻尼效应。 这样就可以高速重复进行制动/断开动作。
    • 12. 发明专利
    • Signal transmitter
    • 信号发射器
    • JPS5930331A
    • 1984-02-17
    • JP14074582
    • 1982-08-12
    • Hitachi Ltd
    • YOSHIZAKI ATSUHIROMATSUI YOSHIAKISAKAWA EIZABUROUISHIKAWA EIICHI
    • H04B3/54
    • H04B3/54H04B2203/5416H04B2203/5466
    • PURPOSE:To eliminate the inconvenience of high-frequency carrier, by utilizing an earth line and providing a coupling transformer between power lines and ground so as to utilize a low-frequency carrier. CONSTITUTION:The coupling transformer 12 is connected to the earth line 11 at a terminal A, a signal carrier oscillating source 13 and a switch 14 are provided to the secondary side to produce a signal carrier 17 according to a signal to be transmitted to the earth line 11 by controlling a signal carrier of the oscillating source 13 at the switch 14 according to the signal to be transmitted of a transmitter 15. A uniform receiving level is obtained always at the power lines 10. The carrier 17 reaches a terminal B of the power line, and is extracted at an impedance 18 and applied 20 to a receiver 21 as a terminal voltage of an impedance 19 and received and demodulated.
    • 目的:消除高频载波的不便,利用地线和电源线与地之间的耦合变压器,以利用低频载波。 构成:耦合变压器12在端子A处连接到地线11,信号载波振荡源13和开关14被提供给次级侧,以根据要传输到地的信号产生信号载体17 通过根据发射机15要发射的信号,在开关14处控制振荡源13的信号载波,总是在电力线10处获得均匀的接收电平。载波17到达终端B 电源线,并且以阻抗18提取并施加20作为阻抗19的端子电压并接收和解调的接收器21。
    • 17. 发明专利
    • MULTIIPHASE RECTIFIER CIRCUIT
    • JPS5556480A
    • 1980-04-25
    • JP12848978
    • 1978-10-20
    • HITACHI LTD
    • YOKOYAMA KAZUYUKIYOSHIZAKI ATSUHIRO
    • H02M7/08H02M7/04H02M7/06
    • PURPOSE:To prevent malfunctioning of the subsequent circuit section by eliminating the overlapping of noise component on the output of the rectifier through grounding of the secondary coil centertap of the transformer. CONSTITUTION:A capacitor 2 and a resistance connected in series to each other are connected between output terminals A and C of the secondary coil of a transformer 1 to shift the secondary output of the transformer for converting the single phase AC input to a given level to 2-phase output. A load 10 is fed with the rectification output of rectifiers 4-7 for full-wave rectification of voltage VC across terminals of the capacitor 2 and the rectification output obtained from a rectifying system which is adapted to invert negative current flowing through rectifiers 4 and 6 with an amplifier 13 using as the reference the potential through the circuit grounding for the second coil center point B of the transformer. The subsequent circuit section 20 works by receiving voltage across the terminals of the load 10.