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公开(公告)号：US4286211A
公开(公告)日：1981-08-25
申请号：US89372
申请日：1979-10-30
CPC分类号： G01R19/20 , G01R15/185
摘要： A direct current detecting device is disclosed in which two pairs of saturable cores are provided so as to enclose a conductor carrying a direct current to be measured. On each of the saturable cores, a bias winding, a feedback winding and an output winding are wound. First and second output circuits are provided, each connected with a pair of output windings and each including two closed current paths consisting of the output winding, a common load, a common A.C. supply source and a diode. The diodes function to allow the greater one of current flows of the two closed paths to be passed through the common load. An amplifier is connected to receive the difference between output signals of the two output circuits. The output of the amplifier is supplied to the feedback winding whereby the magnitude of the feedback current becomes a function of the magnitude of the current flowing through the conductor.
摘要翻译： 公开了一种直流电流检测装置，其中设置两对可饱和芯，以包围承载待测量的直流电流的导体。 在每个可饱和芯上缠绕偏置绕组，反馈绕组和输出绕组。 提供第一和第二输出电路，每个输出电路都与一对输出绕组连接，每个输出绕组包括由输出绕组，公共负载，公共交流电源和二极管组成的两个闭合电流路径。 二极管用于允许两个封闭路径的较大电流流过公共负载。 连接放大器以接收两个输出电路的输出信号之间的差异。 放大器的输出被提供给反馈绕组，由此反馈电流的大小成为流过导体的电流大小的函数。
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公开(公告)号：US4701682A
公开(公告)日：1987-10-20
申请号：US820327
申请日：1986-01-21
申请人： Tetsuji Hirotsu , Hisakatsu Kiwaki , Kiyoshi Nakamura , Hiroshi Narita , Syozi Kasai , Akira Kimura , Yoshio Tsutsui
发明人： Tetsuji Hirotsu , Hisakatsu Kiwaki , Kiyoshi Nakamura , Hiroshi Narita , Syozi Kasai , Akira Kimura , Yoshio Tsutsui
CPC分类号： B60T8/1705 , B60L3/10 , B60L2200/26 , Y02T10/7258
摘要： From the peripheral velocity v.sub.M of a driving wheel and vehicle velocity v, the changing rate .DELTA.v.sub.s /.DELTA.t of the relative velocity v.sub.s therebetween with respect to time is obtained. The changing rate .DELTA.f/.DELTA.t of the traction force f produced in the driving wheel at that time is obtained from a detected armature current of a motor driving the driving wheel. A driving torque produced by the motor is so controlled as to be decreased when polarities of the changing rate in the relative velocity and that in the traction force are different from each other.
摘要翻译： 根据驱动轮的圆周速度vM和车速v，获得相对于时间的相对速度的变化率DELTA vs / DELTA t。 从驱动驱动轮的电动机的检测到的电枢电流获得当时在驱动轮中产生的牵引力f的变化率DELTA f / DELTA t。 当相对速度的变化率和牵引力的变化率的极性彼此不同时，由电动机产生的驱动转矩被控制为减小。
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公开(公告)号：US4768215A
公开(公告)日：1988-08-30
申请号：US863501
申请日：1986-05-15
CPC分类号： H01J35/165 , H05G1/265
摘要： An X-ray generator with current measuring device has an X-ray tube, a power supply unit for feeding high voltage to the X-ray tube, a high voltage cable for connecting the X-ray tube and power supply unit. The high voltage cable is comprised of a core conductor, an insulating layer surrounding the core conductor and a covered shield surrounding the insulating layer and the covered shield is disconnected near one end of the cable connected to the X-ray tube so as to be divided into a major shield portion adjacent to the power supply unit and a minor shield portion adjacent to the X-ray tube. An insulating member is provided for electrically insulating the major and minor shield portions, and a magnetic sensor sensitive to a magnetic field generated by a current flowing through the high voltage cable is positioned around the minor shield portion. The X-ray generator can measure the X-ray tube current accurately and readily under electrical insulation.
摘要翻译： 具有电流测量装置的X射线发生器具有X射线管，用于向X射线管提供高电压的电源单元，用于连接X射线管和电源单元的高压电缆。 高压电缆包括芯导体，围绕芯导体的绝缘层和围绕绝缘层的覆盖屏蔽层，并且覆盖的屏蔽件在连接到X射线管的电缆的一端附近断开，以便被分割 与电源单元相邻的主屏蔽部分和与X射线管相邻的次屏蔽部分。 提供绝缘构件用于电绝缘主要和次要屏蔽部分，并且对流过高压电缆的电流产生的磁场敏感的磁传感器定位在次屏蔽部分周围。 X射线发生器可以在电绝缘下准确，容易地测量X射线管电流。
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公开(公告)号：US4171510A
公开(公告)日：1979-10-16
申请号：US844120
申请日：1977-10-20
CPC分类号： H02H7/1213 , H02H7/0833 , H02H7/122 , H02M3/137
摘要： A system for detecting an output of a controllable semiconductor device includes a controllable semiconductor device, a magnetic amplifier to which an output of the semiconductor device is fedback to control the semiconductor device, and a monitor device for monitoring an output of the magnetic amplifier. The monitor device serves for determining that the output of said semiconductor device exceeds a predetermined level, when the output of the magnetic amplifier is in a remanent output region of the magnetic amplifier.
摘要翻译： 用于检测可控半导体器件的输出的系统包括可控半导体器件，半导体器件的输出反馈以控制半导体器件的磁放大器，以及用于监视磁放大器的输出的监控器件。 当磁放大器的输出处于磁放大器的剩余输出区域时，监视器装置用于确定所述半导体器件的输出超过预定电平。
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公开(公告)号：US4629034A
公开(公告)日：1986-12-16
申请号：US627640
申请日：1984-07-03
申请人： Hiromi Inaba , Hajime Nakashima , Hisakatsu Kiwaki , Akiteru Ueda , Takeki Ando , Toshiaki Kurosawa , Yoshio Sakai
发明人： Hiromi Inaba , Hajime Nakashima , Hisakatsu Kiwaki , Akiteru Ueda , Takeki Ando , Toshiaki Kurosawa , Yoshio Sakai
摘要： In an elevator wherein an elevator cage is repeatedly run among a plurality of floors by controlling a cage driving motor in accordance with a velocity command; a floor arrival error involved when the elevator cage has arrived at the floor is detected, and the velocity command for the subsequent operation is corrected in accordance with the floor arrival error, thereby to enhance the floor arrival precision.
摘要翻译： 一种电梯，其中电梯轿厢通过根据速度指令控制轿厢驱动电机而在多个楼层之间重复地运行; 检测到当电梯轿厢到达地板时涉及的楼层到达错误，并且根据楼层到达错误来校正用于后续操作的速度命令，从而提高楼层到达精度。
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公开(公告)号：US4032833A
公开(公告)日：1977-06-28
申请号：US544269
申请日：1975-01-27
申请人： Masahiko Ibamoto , Hisakatsu Kiwaki
发明人： Masahiko Ibamoto , Hisakatsu Kiwaki
IPC分类号： G05F1/10 , H01F29/14 , H02M3/135 , H02M3/156 , H02M7/04 , H02P7/29 , H02P13/00 , H03F9/00 , H02M7/44 , H02P13/18
CPC分类号： H01F29/146 , H02M3/156 , H02P13/00 , H02P7/29 , H01F2029/143 , H02M2003/1555
摘要： In a chopper control device in which a magnetic phase shifter is used for providing chopper turn-on and turn-off signals, an external magnetic field is applied to the core of the magnetic phase shifter so as to carry out the notching control of a motor by regulating the residual phase angle of the output of the magnetic phase shifter.
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公开(公告)号：US4015187A
公开(公告)日：1977-03-29
申请号：US512156
申请日：1974-10-04
申请人： Akio Sasaki , Kiyoteru Kuwabara , Hisakatsu Kiwaki
发明人： Akio Sasaki , Kiyoteru Kuwabara , Hisakatsu Kiwaki
CPC分类号： H02P9/14 , B60L11/04 , B60L11/06 , B60L2200/26 , Y02T10/646 , Y02T10/648 , Y02T10/70 , Y02T10/7077
摘要： There is provided an exciter arrangement for generators comprising an internal combustion engine, a generator coupled with the internal combustion engine and driven thereby, an exciter for regulating excitation of the exciter, a detector for detecting a value responsive to a revolution number of the internal combustion engine, and a controller for controlling the exciter in response to an output of the detector.
摘要翻译： 提供了一种用于发电机的励磁机装置，其包括内燃机，与内燃机相连并由其驱动的发电机，用于调节励磁机励磁的励磁机，用于检测响应于内燃转速的值的检测器 发动机和用于响应于检测器的输出来控制激励器的控制器。
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公开(公告)号：US4377758A
公开(公告)日：1983-03-22
申请号：US160202
申请日：1980-06-17
申请人： Hisakatsu Kiwaki
发明人： Hisakatsu Kiwaki
摘要： In an apparatus having a saturable magnetic core, a control winding wound on the magnetic core and supplied with a D.C. voltage in accordance with a desired phase angle, and an output winding wound on the magnetic core and supplied with an A.C. voltage through a load resistor, whereby the firing phase of a thyristor is controlled by a voltage across the load resistor, an additional winding is wound on the saturable magnetic core to detect the saturation of the saturable magnetic core by a rapid drop of a voltage across the additional winding. When the saturation is detected, the magnitude of the A.C. voltage applied to the output winding is increased. The phase angle characteristic of the magnetic phase shifter is determined under a low voltage condition prior to the saturation of the magnetic core, and after the saturation a high voltage is applied to the load resistor.
摘要翻译： 在具有可饱和磁芯的装置中，控制绕组缠绕在磁芯上并根据期望的相位角提供直流电压，以及缠绕在磁芯上的输出绕组，并通过负载电阻器提供交流电压 ，由此晶闸管的触发相位由负载电阻器两端的电压控制，另外的绕组缠绕在可饱和磁芯上，以通过附加绕组上的电压的快速下降来检测可饱和磁芯的饱和度。 当检测到饱和时，施加到输出绕组的交流电压的幅度增加。 在磁芯饱和之前，在低电压条件下确定磁性移相器的相位角特性，在饱和之后，向负载电阻施加高电压。
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公开(公告)号：US4124812A
公开(公告)日：1978-11-07
申请号：US742263
申请日：1976-11-16
CPC分类号： B60L7/003 , H02P3/10 , H02P3/14 , B60L2200/26 , Y02T10/642
摘要： In cases of subjecting an electric motor operated vehicle to electric braking, regenerative braking is performed during the first stage of the braking operation thereby supplying the armature current to the battery as a load, and a plugging operation is performed during the last stage thereof to complete the braking operation, whereby the efficiency of operation is enhanced by conserving the armature current to extend the traveling distance of the vehicle per charge of the vehicle battery, and the generation of excessive heat in the motor is suppressed.
摘要翻译： 在使电动车辆进行电动制动的情况下，在制动动作的第一阶段进行再生制动，从而将电枢电流作为负载提供给电池，并且在最后阶段执行封闭动作以完成 制动操作，从而通过节省电枢电流来增加车辆每辆车辆电池的行驶距离，从而提高了操作效率，并且抑制了电动机中过多的热量的产生。
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公开(公告)号：US4012019A
公开(公告)日：1977-03-15
申请号：US605832
申请日：1975-08-19
申请人： Hisakatsu Kiwaki , Hiroshi Okubo
发明人： Hisakatsu Kiwaki , Hiroshi Okubo
CPC分类号： B61L3/185
摘要： A signaling system for cars having wheels adapted for running along a track, in which a signal wire is disposed to extend along the track, a pantograph is provided on each car to make sliding engagement with the signal wire, and a detector apparatus responsive to the sliding movement of the pantograph along the signal wire is provided to detect the relative interval between the cars.
摘要翻译： 一种用于汽车的信号系统，其具有适于沿着轨道行进的车轮，其中信号线沿着轨道延伸设置在每个轿厢上，以便与信号线滑动接合;以及检测器装置， 提供集电弓沿着信号线的滑动运动以检测轿厢之间的相对间隔。
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