-
公开(公告)号：US4983875A
公开(公告)日：1991-01-08
申请号：US367663
申请日：1989-06-19
申请人： Ryoso Masaki , Masahiro Kayama , Hiroshi Hayashida , Hideki Nihei , Yasunori Katayama , Hiroshi Nagase , Toshihiko Matsuda , Kenzo Kamiyama
发明人： Ryoso Masaki , Masahiro Kayama , Hiroshi Hayashida , Hideki Nihei , Yasunori Katayama , Hiroshi Nagase , Toshihiko Matsuda , Kenzo Kamiyama
CPC分类号： H02N2/108 , B25J17/0275 , B25J19/021 , B25J9/046 , H02N2/16
摘要： An actuator suitable for use in a joint device for driving a robot arm or in a subject follow-up device in a video camera, etc., is designed to have a mobility of a freedom of two degrees or more and is adapted to drive a movable part directly using first piezoelectric motor elements each of which consists of piezoelectric elements having a non-ring-like configuration and an elastic body and second piezoelectric motor elements each of which consists of at most one ring-like piezoelectric element and an elastic member. The actuator exhibits a simplified structure, is small and lightweight, provides a powerful driving power and has a wide range of mobility.
-
公开(公告)号：US4839834A
公开(公告)日：1989-06-13
申请号：US2202
申请日：1987-01-12
CPC分类号： G01P13/045
摘要： In a speed detecting apparatus for detecting the rotational speed of a rotating body mechanically coupled thereto, an encoder generates one cycle of a sine-wave signal each time its angular position of rotation changes by a predetermined unit amount. A zero-crossing pulse is generated at each zero-crossing point of the sine-wave signal generated from the encoder, and the phase angle of the sine-wave signal is detected on the basis of the zero-crossing point of the sine-wave signal generated from the encoder. In a high speed range, the rotational speed is detected on the basis of the ratio between the number of zero-crossing pulses and the time interval between a first one and a last one of the plural zero-crossing pulses. On the other hand, in a low speed range, the rotational speed is detected on the basis of the combination of the number of the zero-crossing pulses appearing within a predetermined period of time and the phase angle of the sine-wave signal.
摘要翻译： 在用于检测与其机械耦合的旋转体的旋转速度的速度检测装置中，编码器每当其旋转角位置改变预定单位量时，就产生正弦波信号的一个周期。 在从编码器产生的正弦波信号的每个过零点处产生过零脉冲，并且基于正弦波的过零点检测正弦波信号的相位角 从编码器产生的信号。 在高速范围内，基于过零脉冲数与多个过零脉冲中的第一个和最后一个之间的时间间隔之间的比率来检测转速。 另一方面，在低速范围内，根据出现在预定时间段内的过零脉冲数与正弦波信号的相位角的组合来检测转速。
-
公开(公告)号：US5978851A
公开(公告)日：1999-11-02
申请号：US553292
申请日：1995-11-22
IPC分类号： G06F15/177 , G06F15/18 , H04L12/26 , G06F13/42 , H04L12/46
摘要： A distributed control system has a plurality of controllers, program apparatus, and man-machine systems, which are all interconnected by LAN. The program apparatus is provided with functions corresponding to approval and rejection of operating conditions of the controllers, and a program is allotted to each controller by minimizing the values of the functions. Each controller is structured with the capability of detecting both a load ratio and a traffic quantity of the LAN, on the basis of the detection results, a change of allotment of the program allotted to each controller may be made.
摘要翻译： PCT No.PCT / JP93 / 00689 Sec。 371日期：1995年11月22日 102（e）1995年11月22日日期PCT提交1993年5月25日PCT公布。 公开号WO94 / 28492 日期1994年12月8日分布式控制系统具有多个由LAN互连的控制器，程序设备和人机系统。 程序设备具有与控制器的操作条件的批准和拒绝相对应的功能，并且通过最小化功能的值来将程序分配给每个控制器。 每个控制器的结构都具有检测LAN的负载比和流量的能力，根据检测结果，可以对分配给每个控制器的程序的分配进行更改。
-
公开(公告)号：US4965504A
公开(公告)日：1990-10-23
申请号：US406516
申请日：1989-09-13
申请人： Shigeta Ueda , Kazuo Honda , Takashi Ikimi , Toshihiko Matsuda , Hiroshi Nagase , Nobuyoshi Mutoh
发明人： Shigeta Ueda , Kazuo Honda , Takashi Ikimi , Toshihiko Matsuda , Hiroshi Nagase , Nobuyoshi Mutoh
IPC分类号： H02M7/5387
CPC分类号： H02M7/53873 , H02M2007/53876
摘要： A control apparatus for controlling a PWM inverter, the PWM inverter receiving AC power and generating an AC output having a controlled frequency to be supplied to an AC motor, comprises a circuit for generating, on the basis of a given running command, a PWM signal controlling the inverter with a given sampling period, and a circuit for controlling the PWM signal generating circuit, whereby the AC motor generates an electromagnetic tone preselected so as to correspond to desired information when the AC motor is driven by output of the inverter controlled by the PWM signal. The above described desired information may be information representing the running state of the motor or selected music.
-
公开(公告)号：USD482698S1
公开(公告)日：2003-11-25
申请号：US29174821
申请日：2003-01-24
-
公开(公告)号：US06435036B1
公开(公告)日：2002-08-20
申请号：US09904545
申请日：2001-07-16
申请人： Toshisuke Sakai , Toshihiko Matsuda , Kazuyuki Kasahara , Yasumasa Fukami , Takashi Ehara , Motohiko Matsuguma , Yasuhiko Ezaki , Masashi Yamaguchi
发明人： Toshisuke Sakai , Toshihiko Matsuda , Kazuyuki Kasahara , Yasumasa Fukami , Takashi Ehara , Motohiko Matsuguma , Yasuhiko Ezaki , Masashi Yamaguchi
IPC分类号： G01F132
CPC分类号： G01F1/329 , G01F1/3245
摘要： A vortex flow meter includes a measuring tube in which a fluid is carried, a vortex generator provided in the measuring tube for developing a Karman vortex in the fluid, a magnetic field generator generating a magnetic field across the measuring tube downstream of the vortex generator, a pair of electromotive force measuring electrodes provided downstream of the vortex generator for measuring an electromotive force generated by the Karman vortex passing across the magnetic field, a pair of reference electrodes provided at locations upstream and downstream of the electromotive force measuring electrodes, respectively, for measuring a potential at each location, and a detector circuit electrically connected to the electromotive force measuring electrodes and the reference electrodes for calculating the flow of the fluid from the electromotive force and the potential measured by the reference electrodes. The flow is calculated by subtracting the potential difference of the reference potential measuring electrodes from the electromotive force measured by the electromotive force measuring electrodes. This allows the flow meter to have an increased measuring range, meet a wide range of flow conditions, have a simple construction, and have measurement accuracy.
摘要翻译： 涡流流量计包括其中载有流体的测量管，设置在测量管中用于在流体中显影卡曼涡流的涡流发生器，产生涡流发生器下游的测量管的磁场的磁场发生器， 设置在涡流发生器下游的一对电动势测量电极，用于测量由穿过磁场的卡门涡流产生的电动势，分别设置在电动势测量电极的上游和下游的一对参考电极，用于 测量每个位置处的电位，以及电连接到电动势测量电极和参考电极的检测器电路，用于从电动势计算流体的流量和由参考电极测量的电位。 通过从由电动势测量电极测量的电动势中减去参考电位测量电极的电位差来计算流量。 这允许流量计具有增加的测量范围，满足宽范围的流动条件，具有简单的结构，并且具有测量精度。
-
7.发明授权
公开(公告)号：US6078454A
公开(公告)日：2000-06-20
申请号：US573319
申请日：1995-12-15
申请人： Tsuyoshi Takahashi , Toshihiko Matsuda , Takehiko Tsuboi , Koji Ikenoya , Yukio Abe , Koji Ishii , Tomoo Furukawa , Hiroyuki Kobayashi
发明人： Tsuyoshi Takahashi , Toshihiko Matsuda , Takehiko Tsuboi , Koji Ikenoya , Yukio Abe , Koji Ishii , Tomoo Furukawa , Hiroyuki Kobayashi
IPC分类号： G11B5/09 , G11B5/00 , G11B5/012 , G11B5/03 , G11B5/39 , G11B5/48 , G11B5/56 , G11B5/596 , G11B21/10 , G11B33/14
CPC分类号： G11B5/012 , G11B21/106 , G11B5/56 , G11B2005/0018 , G11B33/14 , G11B5/4886
摘要： When a combination head is on-tracked to an arbitrary cylinder position, a head position controller corrects a head position so as to eliminate an offset amount derived from an offset table. A bias current setting circuit obtains a current set value corresponding to an offset correction amount from a bias current table and supplies the bias current according to the current set value to an MR head. As kinds of offsets, there are a yaw angle offset, a thermal offset, and a core deviation offset.
摘要翻译： 当组合磁头跟踪到任意气缸位置时，磁头位置控制器校正磁头位置，以消除从偏移表导出的偏移量。 偏置电流设定电路从偏置电流表获得与偏移校正量对应的电流设定值，并根据当前设定值将偏置电流提供给MR磁头。 作为偏移类型，存在偏航角偏移，热偏移和磁心偏移偏移。
-
公开(公告)号：US4337509A
公开(公告)日：1982-06-29
申请号：US171266
申请日：1980-07-22
申请人： Tsutomu Omae , Toshihiko Matsuda
发明人： Tsutomu Omae , Toshihiko Matsuda
CPC分类号： H02P23/22 , H02P7/293 , Y10S388/912 , Y10S388/917
摘要： A digital control system for controlling firing pulses supplied to thyristors for power conversion to desired phases, wherein data necessary for obtaining desired phase control signals is set in a counter which normally counts clock pulses having a predetermined period and the firing pulses are generated in synchronism with the generation of overflow pulses from the counter. The data setting to the counter, which is repeated at a period shorter than that of the source voltage, is performed by reading out the actual count value of the counter by a digital arithmetic processor circuit, by correcting the read value by the use of the value corresponding to a desired phase and by setting the corrected value again in the counter.
摘要翻译： 一种数字控制系统，用于控制提供给晶闸管的点火脉冲，以将功率转换为期望的相位，其中获得期望相位控制信号所需的数据被设置在计数器中，该计数器通常对具有预定周期的时钟脉冲进行计数，并且触发脉冲与 从计数器产生溢出脉冲。 通过利用数字运算处理器电路读出计数器的实际计数值来进行以比源电压短的周期重复的计数器的数据设定，通过使用 值，并且通过在计数器中再次设置校正值。
-
公开(公告)号：US07490568B2
公开(公告)日：2009-02-17
申请号：US11833814
申请日：2007-08-03
CPC分类号： D05B85/006
摘要： A bearded needle comprises a needle shank whose tip is shaped into a thin shank portion by tapering down the thickness of the needle shank. The thin shank portion has a conical projection portion at the extremity thereof. The conical projection portion has a hooking tip portion to form a hooking portion at the tip of the needle shank. The hooking portion has a substantially U-shaped bottom portion that hooks and holds a thread, and includes sloping surfaces each inclining toward an outer edge of the hooking tip portion. The sloping surfaces each extend from the bottom portion over both the conical projection portion and the hooking tip portion.
摘要翻译： 胡须针包括针柄，其尖端通过使针柄的厚度逐渐变细而成形为薄的柄部分。 薄的柄部分在其末端具有锥形突出部分。 锥形突出部具有钩针尖部，以在针柄的尖端处形成钩部。 钩挂部分具有大致U形的底部，其钩住并保持螺纹，并且包括倾斜表面，每个倾斜表面朝着钩形尖端部分的外边缘倾斜。 倾斜表面各自从锥形突出部分和钩形尖端部分上的底部延伸。
-
公开(公告)号：US07255154B2
公开(公告)日：2007-08-14
申请号：US11126323
申请日：2005-05-11
申请人： Shinya Koga , Nobuyuki Goto , Tetsuya Anami , Toshihiko Matsuda
发明人： Shinya Koga , Nobuyuki Goto , Tetsuya Anami , Toshihiko Matsuda
CPC分类号： G06F1/203 , F04D29/588 , G06F2200/203 , H01L23/473 , H01L2924/0002 , H01L2924/00
摘要： A cooling device includes a heat-radiating device and a centrifugal pump provided in a closed circulation passage for circulating refrigerant. The centrifugal pump contacts and absorbs heat from heat-generating electronic parts by heat exchange of the refrigerant therein to radiate the heat via the heat-radiating device. The centrifugal pump includes a lower casing that comes into contact with the heatgenerating electronic parts, an upper casing disposed to face the lower casing to form a pump chamber, and an impeller sandwiched between the upper casing and the lower casing. The lower casing includes a recessed conical surface facing the impeller, at least one protrusion provided in a center portion of the recessed conical surface and a contact face with which the heat-generating electronic parts come into contact formed directly below the protrusion on an opposite side of the recessed conical surface.
摘要翻译： 冷却装置包括设置在用于循环制冷剂的封闭循环通道中的散热装置和离心泵。 离心泵通过其中的制冷剂的热交换而接触和吸收来自发电电子部件的热量，以通过散热装置辐射热量。 离心泵包括与发热电子部件接触的下壳体，与壳体相对配置以形成泵室的上壳体和夹在上壳体和下壳体之间的叶轮。 下壳体包括面向叶轮的凹入的圆锥形表面，设置在凹形圆锥形表面的中心部分中的至少一个突起和发热电子部件接触的接触面，形成在相对侧的突起下方 的凹入的圆锥形表面。
-
-
-
-
-
-
-
-
-
搜索结果
46 条记录 (耗时 0.031 秒)
