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41. 发明专利

JPS6184501A Position sensor with reference position detecting function 失效
标题翻译：具有参考位置检测功能的位置传感器
公开(公告)号：JPS6184501A
公开(公告)日：1986-04-30
申请号：JP20633584
申请日：1984-10-03
申请人： Hitachi Ltd
发明人： TAKAHASHI TADASHI , MIYASHITA KUNIO , KAWAMATA SHOICHI
IPC分类号： G11B5/39 , G01B7/00 , G01D5/244 , G01D5/245
摘要： PURPOSE: To detect plural reference positions by providing plural tracks and recording a magnetic signal on one track continuously and a reference position magnetic signal on the other track intermittently.
CONSTITUTION: A magnetic drum 3 is provided onto the shaft 2 of a motor 1. The magnetic drum 3 is provided with an encoder track 31 and a reference position track 32. The magnetic signal of unit magnetic poles N and S are recorded on the encoder track 31 continuously. Two groups of signals of unit magnetic poles N and S are recorded on the reference position track in every round. A magnetic sensor 4 is provided with magneto-resistance elements R
e1 and R
e2 , and R
c1 and R
c2 . Plural tracks are provided so magnetic signals cause no interference. Further, a basic position signal having optional width is reproduced.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过提供多个轨迹并且在一个轨道上连续地记录磁信号和间歇地在另一轨道上的参考位置磁信号来检测多个参考位置。构成：将磁鼓3设置在电动机1的轴2上。磁鼓3设置有编码器轨道31和基准位置轨迹32.单位磁极N和S的磁信号被记录在编码器不断追踪31。在每一轮中，在参考位置轨迹上记录了两组单位磁极N和S的信号。磁传感器4设置有磁阻元件Re1和Re2，以及Rc1和Rc2。提供了多个磁道，因此磁信号不会产生干扰。此外，再现具有可选宽度的基本位置信号。

42. 发明专利

JPS6151502A Position detecting device for moving body 失效
标题翻译：用于移动体的位置检测装置
公开(公告)号：JPS6151502A
公开(公告)日：1986-03-14
申请号：JP17331584
申请日：1984-08-22
申请人： Hitachi Ltd
发明人： KAWAMATA SHOICHI , TAKAHASHI TADASHI , MIYASHITA KUNIO
IPC分类号： G01D5/245 , G01B7/00 , G01D5/18 , G01D5/244
摘要： PURPOSE: To facilitate the positioning and adjustment of a magnetic sensor by arranging a magnetic sensor so that magnetic signals of an incremental part and a reference signal part are detected on the same substrate.
CONSTITUTION: A rotary drum 3 having a magnetic body 4 on which a magnetic signal is recorded is fixed onto a motor shaft 2. Further, the magnetic sensor 6 composed of a magneto-resistance effect element is arranged facing the rotary drum 3 across a small gap. Then, an incremental track constituting an incremental part where many continuous signals are recorded and a reference signal track constituting a part where one reference signal is recorded for every turn are formed on a magnetic body 4, and those signals are detected by the magnetic sensor 6.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过布置磁传感器来促进磁传感器的定位和调整，使得在同一基板上检测到增量部分和参考信号部分的磁信号。构成：将具有记录有磁信号的磁体4的旋转磁鼓3固定在电动机轴2上。此外，由磁阻效应元件构成的磁传感器6以小的方式与旋转磁鼓3相对配置间隙。然后，在磁性体4上形成构成记录有连续信号的增量部分的增量轨道和构成每个转弯记录一个参考信号的部分的参考信号轨道，并且这些信号由磁传感器6检测。

43. 发明专利

JPS6117001A Device for magnetically detecting position 失效
标题翻译：用于磁性检测位置的装置
公开(公告)号：JPS6117001A
公开(公告)日：1986-01-25
申请号：JP9794985
申请日：1985-05-10
申请人： Hitachi Ltd
发明人： TAKAHASHI TADASHI , MIYASHITA KUNIO , KAWAMATA SHIYOUICHI
IPC分类号： G01D5/249 , G01B7/00 , G01D5/245
摘要： PURPOSE: To detect without interference magnetized tracks different in record length from one another, by providing magnetic signal elements bearing magnetic record units being continuous in required numbers in the direction of movement of a moving body and non-magnetic-field elements bearing no magnetic record units, and by making identical the magnetic poles of the magnetic signal elements holding the non-magnetic-field therebetween.
CONSTITUTION: A rotary drum 5 fitted to a rotary body 1 through the intermediary of a rotary shaft 2 has magnetized tracks M
0a WM
3a which are prepared by recording magnetic signals in different record length on a magnetic recording medium on the surface of the drum, and a magnetic sensor 4a having magnetoresistance elements R
01 W R
32 disposed thereon is provided opposite to the drum. Each track is provided with magnetic signal elements bearing magnetic poles of minimum magnetic record units which have polarities of N or S and are continuous in required numbers in the direction of movement of the drum indicated by an arrow, and with non-magnetic-field elements bearing no magnetic record units, and the magnetic poles of the magnetic signal elements holding the non-magnetic-field element therebetween are formed to have the same pole. According to this construction, magnetic signals can be detected with the same sensitivity and without any magnetic interference from each magnetized track even when it bears the signals different in record length from others.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过提供具有磁性记录单元的磁信号元件，在不影响记录长度不同的磁化轨迹的情况下检测移动体的运动方向和不带磁记录的非磁场元件所需的数量连续的磁记录单元并且通过使保持其之间的非磁场的磁信号元件的磁极相同。构成：通过旋转轴2安装在旋转体1上的旋转滚筒5具有通过将不同记录长度的磁信号记录在滚筒表面上的磁记录介质上而制备的磁化轨道M0a-M3a，以及具有设置在其上的磁阻元件R01- R32的磁传感器4a与鼓相对设置。每个轨道都设有磁信号元件，该磁信号元件带有极性为N或S的最小磁记录单元的磁极，并且在由箭头所示的滚筒的移动方向上以所需数量连续，并且具有非磁场元件不存在磁记录单元，并且将保持非磁场元件的磁信号元件的磁极形成为具有相同的极。根据这种结构，磁信号可以以相同的灵敏度被检测，并且即使当它承载与其他磁记录长度不同的信号时，也可以从每个磁化轨迹获得任何磁干扰。

44. 发明专利

JPS619185A Controller of synchronous motor 失效
标题翻译：同步电机控制器
公开(公告)号：JPS619185A
公开(公告)日：1986-01-16
申请号：JP12527284
申请日：1984-06-20
申请人： Hitachi Ltd
发明人： MIYASHITA KUNIO , SUGIURA YASUYUKI
IPC分类号： H02P6/06 , H02P25/02
CPC分类号： H02P25/03
摘要： PURPOSE:To perform high speed operation of a synchronous motor by deciding a load angle of a terminal voltage and an induced voltage on the basis of a speed detected value, and varying the amplitude of a terminal voltage by a speed deviation to eliminate a current detector, thereby reducing the cost of a controller of the motor. CONSTITUTION:A 3-phase pulse width modulation output voltage is generated by an inverter 4 through a rectifier 2 and a smoothing condenser 3 from an AC power source 1, the amplitude of the voltage and the phase are varied to control to drive a synchronous motor 5. The controller takes a speed deviation between a speed command value omegac and a speed detection value from a tachometer generator 7, has a speed regulator 10 relating to speed regulating means for calculating a voltage command value Etc, a calculator 11 for calculating a load angle command value deltac, an adder 12 of the phase detection angle theta of a pole detector 6 and the command value deltac, a sinusoidal calculator 13 for calculating and generating 3-phase sinusoidal signals Sa-Sc, multipliers 14-16 for calculating the 3-phase voltage command values ea-ec, and firing angle regulators 17-19, thereby regulating the firing angle to control the output voltage.
摘要翻译：目的：通过基于速度检测值确定端子电压和感应电压的负载角度，并通过速度偏差来改变端子电压的振幅，以消除电流检测器来执行同步电动机的高速运行，从而降低电动机的控制器的成本。构成：逆变器4通过整流器2和来自交流电源1的平滑电容器3产生三相脉宽调制输出电压，电压和相位的振幅变化，以驱动同步电动机控制器在速度指令值ωgac与来自转速计发生器7的速度检测值之间存在速度偏差，具有与用于计算电压指令值Etc的速度调节装置有关的速度调节器10，用于计算负载的计算器11 角度指令值deltac，极点检测器6的相位检测角度θ的加法器12和指令值deltac，用于计算和产生三相正弦信号Sa-Sc的正弦计算器13，用于计算3 相电压指令值ea-ec和触发角度调节器17-19，从而调节触发角度以控制输出电压。

45. 发明专利

JPS614458A STEPWISE FEEDING ACTUATOR 失效
公开(公告)号：JPS614458A
公开(公告)日：1986-01-10
申请号：JP12372884
申请日：1984-06-18
申请人： HITACHI LTD
发明人： MIYASHITA KUNIO , HAYASHIDA HIROSHI , TAKAHASHI TADASHI , NOTOHARA YASUO
IPC分类号： H02K33/18 , G05B19/23 , H02K41/035
摘要： PURPOSE:To obtain an actuator capable of stepwisely feeding in small size and high accuracy by forming the operation corresponding to the teeth of a step motor by a sensor and a controller. CONSTITUTION:A coil movable type linear actuator 10 has a permanent magnet 12 and pole pieces 16 on the inner surface of a stator 11, and coils 15 disposed in the intermediate gaps. A movable unit 13 directly coupled with the coils 15 is supported by slide bearings 14 and laterally moved. A sensor 3 is disposed oppositely to the unit 13, the position of the unit 13 is detected, and the detection signal is applied to a signal processor 6. The sensor 3 generates different 2-phase outputs A, B of 90 deg., the processor 6 forms a reverse conversion signal and applies a voltage command signal Vc to a voltage controller 5 on the basis of one of the signal selected by a command generator 7 by the voltage instructing circuit 5. The controller 5 controls the voltage of the coil 15 to stepwisely feed.

46. 发明专利

JPS60185115A ROTARY SENSOR 失效
公开(公告)号：JPS60185115A
公开(公告)日：1985-09-20
申请号：JP27239684
申请日：1984-12-24
申请人： HITACHI LTD
发明人： HAYASHIDA HIROSHI , TAKAHASHI TADASHI , MIYASHITA KUNIO , KAWAKAMI HIROJI
IPC分类号： G01D5/245 , G01D5/14 , G01D5/16 , G01P3/487 , G01P3/488
摘要： PURPOSE:To improve detecting sensitivity, by bending a magnetoresistance element at a position corresponding to a part of a rotary magnetic body on the side of the inner diameter, extending the element into the direction of the outer diameter, arranging two lead-wire attaching parts to the outside, and approaching the detecting parts of the resistor element to the rotary magnetic body. CONSTITUTION:When magnetic data recorded on a recording medium 1 is a digital signal having a constant wavelength lambda, a magnetoresistance element 2 is bent so that the length nlambda (n: integer), i.e., integer times the element, is provided, and returned in a U shape. Lead wire attaching parts R1 and R2 are arranged at the outside of a rotary magnetic body 1. Either of the lead-wire attaching parts is arranged on the outside of the rotary magnetic part. IN this way, the detecting part of the magnetoresistance element is made to approach to the rotary magnetic body and the detecting sensitivity can be improved. The two parts of the magnetoresistance element, which are extended to the radial direction, are both made to be the detecting parts. The pitch of the detecting parts is set at nlambda. Thus the detected output power can be increased.

47. 发明专利

JPS6082077A SPEED CONTROLLING METHOD AND DEVICE FOR MOTOR 失效
公开(公告)号：JPS6082077A
公开(公告)日：1985-05-10
申请号：JP18596783
申请日：1983-10-06
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： WATANABE MITSURU , TAKAHASHI TADASHI , MIYASHITA KUNIO
IPC分类号： H02P29/00 , G01P3/489
摘要： PURPOSE:To improve the responsiveness of controlling the speed of a motor by variably setting the time to become the reference of converting the rotating speed in response to the command value of the rotating speed or the rotating speed of a motor. CONSTITUTION:Rotating speed converting means PS counts signals Spg until the sum of the time during the signal Spg of a pulse generator PG to exceed a reference time Ts, and calculates the rotating speed Vr on the basis of the counted number and the time data at that time. Control signal generating means Pc controls a drive unit D in response to a deviation between a speed command value Vc and the rotating speed Vr. Reference time setting means PT varies a reference time Ts in response to the rotating speed Vr or the speed command value Vc of the motor. Thus, the speed can be detected accurately in a wide speed control range.

48. 发明专利

JPS6055873A SPEED DETECTING METHOD 失效
公开(公告)号：JPS6055873A
公开(公告)日：1985-04-01
申请号：JP16044983
申请日：1983-09-02
申请人： HITACHI LTD
发明人： SUGIURA YASUYUKI , MORINAGA SHIGEKI , ENDOU TSUNEHIRO , TAJIMA FUMIO , MIYASHITA KUNIO , KATOU KAZUTOSHI , MURAMATSU MASAHARU
IPC分类号： H02P29/00 , G01P3/489 , H02P5/00
摘要： PURPOSE:To enable to continuously detect the speed in an extremely low speed rotation by immediately calculating the rotating speed with next pulse after the first sampling time is finished. CONSTITUTION:The first and second sampling times are provided, and after a sampling time taus is finished for the first sampling, it is immediately calculated from the next pulse as shown in Fig. (a). Further, when the next pulse is not existed, after the sampling time tauL is finished for the second sampling as shown in Fig. (b), the rotating speed is immediately calculated, thereby accurately and continuously detecting the speed from zero, extremely low speed to high speed.

49. 发明专利

JPS59209085A Controller of synchronous motor 失效
标题翻译：同步电机控制器
公开(公告)号：JPS59209085A
公开(公告)日：1984-11-27
申请号：JP8100183
申请日：1983-05-11
申请人： Hitachi Ltd
发明人： MIYASHITA KUNIO , SUGIURA YASUYUKI , TAJIMA FUMIO , MORINAGA SHIGEKI , ENDOU TSUNEHIRO
IPC分类号： H02P6/06 , H02P25/02
CPC分类号： H02P25/03
摘要： PURPOSE:To eliminate a current detector by calculating a sinusoidal wave on the basis of an added value of a load angle based on a speed detected value and a phase detection angle, and controlling the voltage by a multiplied value of a voltage instruction value based on the speed detected value and a torque command value by a sinusoidal calculated value. CONSTITUTION:A speed regulator 10 compares a speed command value omegac with a speed detected value omegaf, and calculates a torque command value, and an arithmetic unit 11 calculates a voltage command value etc and a load angle command value omegac based on the torque command value Tc and the speed detected value omegac. An adder 12 adds the phase detected angle theta and the load angle instruction value deltac, and a sinusoidal wave calculator 13 calculates 3-phase sinusoidal signals Sa-Sc based on the added value delta0. Multipliers ea-ec multiply the signals Sa-Sc by the voltage command value etc and apply the 3-phase voltage command values ea-ec to the firing angle regulators 17-19 of an inverter 4.
摘要翻译：目的：通过基于速度检测值和相位检测角度基于负载角度的相加值计算正弦波来消除电流检测器，并且基于电压指令值的相乘值来控制电压速度检测值和扭矩指令值乘正弦计算值。构成：速度调节器10将速度指令值ωgac与速度检测值ω进行比较，并计算转矩指令值，算术单元11基于转矩指令值计算电压指令值等和负载角度指令值ωgac Tc和速度检测值omegac。加法器12将相位检测角度θ和负载角度指令值deltac相加，正弦波计算器13基于相加值delta0计算3相正弦信号Sa-Sc。乘法器ea-ec将信号Sa-Sc乘以电压指令值等，并将三相电压指令值ea-ec施加到逆变器4的触发角调节器17-19。

50. 发明专利

JPS59147213A Magnetic rotary sensor 失效
标题翻译：磁力旋转传感器
公开(公告)号：JPS59147213A
公开(公告)日：1984-08-23
申请号：JP2149283
申请日：1983-02-14
申请人： Hitachi Ltd
发明人： TAMURA KATSUYOSHI , KANAI HIROMI , ODAWARA KOUZOU , MIYASHITA KUNIO
IPC分类号： G01D5/245 , G01B7/00 , G01D5/14 , G01D5/16 , G01P3/487
CPC分类号： G01D5/145
摘要： PURPOSE:To contrive to enhance the accuracy of the titled sensor, by providing magneto-resistance elements to the entire periphery of the rotor of a magnetic recording medium by bridge connection so as to span a plurality of magnetic poles magnetized at constant pitches within two pitches to output a plurality of signals having different phases. CONSTITUTION:A magnetic drum 3 equipped with a magnetic recording medium having a magnetic patterns magnetized over the entire peripheral surface thereof at constant pitches is connected to the shaft 2 driven by a motor 1. On the other hand, a substrate 5 is fixed to a support table 4 and thin film like magneto-resistance elements 6 are formed on the surface thereof. Each magneto-resistance element 6 is opposed to the magnetic recording medium on the peripheral surface of the magnetic drum 3 so as to leave a constant interval 7 therebetween and four resistance elements at every eight cycles are combined as one set so as to span two magnetic poles and subjected to bridge connection to constitute two kinds of magnetic detection circuits each comprising seven sets. When the width of each magnetic resistance element 6 set to W and the mutual interval of the adjacent resistance elements is set to P, W>P is formed and, therefore, the magnetic resistance elements 61-68 are combined so as to be arranged in a two-layered structure through an insulating layer.
摘要翻译：目的：为了提高标准传感器的精度，通过桥式连接向磁记录介质的转子的整个周边提供磁阻元件，以跨越在两个间距内以恒定间距磁化的多个磁极以输出具有不同相位的多个信号。构成：将具有以恒定间距磁化在其整个外周表面上的磁性图案的磁记录介质的磁鼓3连接到由马达1驱动的轴2上。另一方面，将基板5固定到支撑台4和薄膜状磁阻元件6形成在其表面上。每个磁阻元件6与磁鼓3的外围表面上的磁记录介质相对，以便在其间留有恒定的间隔7，并且每八个周期的四个电阻元件组合成一组，以跨越两个磁并且进行桥接连接以构成每个包括七组的两种磁检测电路。当将每个磁阻元件6的宽度设定为W并将相邻电阻元件的相互间隔设置为P时，形成W> P，因此，将磁阻元件61-68组合成布置在通过绝缘层的两层结构。

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