公开(公告)号：US5550367A

公开(公告)日：1996-08-27

申请号：US229728

申请日：1994-04-19

Applicant: George A. Plesko

Inventor： George A. Plesko

IPC: G02B3/14 ,  G02B26/10 ,  G02B26/12 ,  G06K7/10 ,  H02K7/06 ,  H02K7/065 ,  H02K26/00 ,  H02K33/06 ,  H02K33/16 ,  H03K17/94 ,  H03K17/955 ,  H03K17/96 ,  H04N1/113

CPC classification number: H02K33/16 ,  G02B26/10 ,  G02B26/101 ,  G02B26/105 ,  G02B26/121 ,  G02B3/14 ,  G06K7/10594 ,  G06K7/10613 ,  G06K7/10643 ,  G06K7/10653 ,  G06K7/10673 ,  G06K7/10693 ,  G06K7/10762 ,  G06K7/10772 ,  G06K7/10811 ,  G06K7/10851 ,  G06K7/10871 ,  G06K7/10881 ,  H02K26/00 ,  H02K33/06 ,  H02K7/06 ,  H02K7/065 ,  H03K17/94 ,  H03K17/941 ,  H03K17/955 ,  H03K17/9631 ,  G06K2207/1013 ,  G06K2207/1016 ,  G06K2207/1017 ,  H02K2201/12

Abstract: Non-Imaging beam conditioning optical elements are disclosed which allow nearly full power usage from a light source, in a beam scanning information readout device such as a bar code reader. Light which would have been otherwise wasted by using stop apertures as in prior art scanning devices, is utilized efficiently by apportioning a greater amount of the light to the far out targets and less to the close in targets, effectively solving the problem of signal amplitude variation over a long working range. At the same time the novel optical elements provide multiple focal ranges which may be made to overlap thereby providing small beam cross sections for near and distant targets, significantly extending the depth of scanning range over prior art scanners. Amplification and signal processing of received light signals is simplified thereby eliminating the need for complex and fussy AGC amplifiers and limiters to deal with both strong and weak signals from close and distant targets respectively. Novel signal processing circuitry is also disclosed for adaptively processing received signals and for reducing variation associated with laser diodes, optical elements, and target related variables such as such as distance, reflectivity and contrast.

Abstract translation: 公开了非成像光束调节光学元件，其允许光束扫描信息读出装置（例如条形码阅读器）中的来自光源的几乎全部的功率使用。 如现有技术的扫描装置那样通过使用停止孔而浪费的光通过将更大量的光分配给远远的目标并且更少到目标的接近而有效地利用，有效地解决了信号幅度变化的问题 在一个漫长的工作范围内。 同时，新颖的光学元件提供多个焦距范围，这些焦距范围可以重叠，从而为近距离和远距离的目标提供小的光束横截面，与现有技术的扫描仪相比，显着延长了扫描范围的深度。 简化了接收光信号的放大和信号处理，从而不再需要复杂而有趣的AGC放大器和限幅器来分别处理来自近距离和远距离目标的强信号和弱信号。 还公开了新颖的信号处理电路，用于自适应地处理接收到的信号并且用于减少与激光二极管，光学元件以及诸如距离，反射率和对比度的目标相关变量相关联的变化。

公开(公告)号：US4837474A

公开(公告)日：1989-06-06

申请号：US231763

申请日：1988-08-12

Applicant: Christian C. Petersen ,  Ken G. Wasson

Inventor： Christian C. Petersen ,  Ken G. Wasson

IPC: H02K21/12 ,  H02K29/00

CPC classification number: H02K21/12 ,  H02K2201/12

Abstract: A P.M. d.c. motor in which the permanent magnets thereof are provided as arcuate segments of predetermined length which rotate about a circular locus of core component defining pole assemblies. The paired permanent magnets are magnetized in a radial polar sense and interact in radial fashion with three core components of each pole assembly which include a centrally disposed core component extending within a channel between the magnet pairs and to adjacent inwardly and outwardly disposed core components also interacting with the permanent magnet radially disposed surfaces. With the arrangement, localized rotor balancing is achieved and, additionally, discrete or localized magnetic circuits are developed with respect to the association of each permanent magnet pair with a pole assembly.

公开(公告)号：US4714853A

公开(公告)日：1987-12-22

申请号：US903470

申请日：1986-09-04

Applicant: Albert Palmero ,  Charles Hansen

Inventor： Albert Palmero ,  Charles Hansen

IPC: H02K21/12 ,  H02K21/14

CPC classification number: H02K21/125 ,  H02K2201/12

Abstract: An electric motor has an annular permanent magnetic rotor having rotor poles of alternating polarity around its circumference. The motor has an outer stator disposed concentrically around the outer periphery of the rotor which has an annular configuration and a plurality of axially extending salient magnetic poles of opposite polarity alternating around the outer stator's inner periphery. The motor also has an inner stator disposed concentrically within the inner periphery of the rotor which has an annular configuration and a plurality of axially extending salient magnetic poles of opposite polarity alternating around the inner stator's periphery. A separately energizable annular coil of wire disposed inside each stator energizes that stator's magnetic poles in response to sequential energization of each coil with electricity in different phase relationship with each other.

Abstract translation: 电动机具有环形永磁转子，其具有围绕其圆周交替极性的转子极。 电动机具有围绕转子的外周同心地设置的外部定子，该外部定子具有环形构造，并且具有相对极性的多个轴向延伸的突出的磁极围绕外部定子的内周交替。 电动机还具有同心地设置在转子的内周内的内部定子，该内部定子具有环形构造，并且多个轴向延伸的具有相反极性的突出磁极围绕内部定子的周边交替。 设置在每个定子内部的可单独供电的环形线圈对每个线圈的顺序通电响应于定子的磁极，并以彼此不同的相位关系发电。

公开(公告)号：US4659952A

公开(公告)日：1987-04-21

申请号：US882285

申请日：1986-07-07

Applicant: Naoki Unjo ,  Takamichi Fuke

Inventor： Naoki Unjo ,  Takamichi Fuke

IPC: H02K3/34 ,  H02K5/167 ,  H02K21/14 ,  H02K37/14 ,  H02K7/08 ,  H02K5/16

CPC classification number: H02K5/167 ,  H02K21/145 ,  H02K3/345 ,  H02K37/14 ,  H02K2201/12

Abstract: In a stepping motor comprising a stator including a plurality of stator plates, and a rotor made of a permanent magnet, a coating layer made of a nonmagnetic material is applied to the stator plates, and the rotor is rotated within the stator plates while the rotor is maintained in a closely adjacent relation contactable with the coating layer of the stator plates.

Abstract translation: 在包括具有多个定子板的定子和由永磁体制成的转子的步进电动机中，将由非磁性材料制成的涂层施加到定子板上，并且转子在定子板内旋转，同时转子 保持在与定子板的涂层可接触的紧密相邻的关系。

公开(公告)号：US4656381A

公开(公告)日：1987-04-07

申请号：US726257

申请日：1985-04-23

Applicant: Fumito Komatsu

Inventor： Fumito Komatsu

IPC: H02K21/14 ,  H02K21/22 ,  H02K29/08 ,  H02K29/14 ,  H02K21/12

CPC classification number: H02K21/145 ,  H02K21/227 ,  H02K29/08 ,  H02K29/14 ,  H02K2201/12

Abstract: A magnetic pole core for an electrorotary machine comprises a pair of circular base board sections holding a coil therebetween wound concentrically on a shaft, and a plurality of magnetic pole sections extending from the edge of each base board section over the outer circular face of the coil so as to be disposed alternately from the two base board sections. Each magnetic pole section is divided circumferentially into first and second magnetic pole pieces, one of which has a circumferentially extended section. A third magnetic pole piece may be provided between the first and second magnetic pole pieces.

Abstract translation: 用于电动机的磁极铁心包括一对圆形基板部分，其保持同心地在轴上缠绕的线圈，以及多个磁极部分，从每个基板部分的边缘延伸到线圈的外圆面上 以便从两个基板部分交替布置。 每个磁极部分被圆周地分成第一和第二磁极片，其中一个具有周向延伸的部分。 可以在第一和第二磁极片之间设置第三磁极片。

公开(公告)号：US4404484A

公开(公告)日：1983-09-13

申请号：US241362

申请日：1981-03-06

Applicant: George L. Gillott

Inventor： George L. Gillott

IPC: H02K21/14 ,  H02K37/14 ,  H02K37/00

CPC classification number: H02K37/14 ,  H02K21/145 ,  H02K2201/12

Abstract: A self-starting unidirectional rotating machine, suitable for use as a stepping motor, has a permanent magnet rotor and a pair of finger-like pole pieces extending axially alongside the rotor. These pole pieces are disposed asymmetrically so that, for example, the center of one pole piece is substantially diametrically aligned with an edge of the other pole piece. Bias magnets create a bias flux flowing through the pole pieces. A helical coil, when energized, provides a main rotor flux opposite to the bias flux and sufficient to overcome it. Upon energization, the rotor turns 180 electrical degrees in a preferred direction from a quiescent position to a second position. Then, upon deenergization, the rotor turns 180 electrical degrees from its second position to its quiescent position.

Abstract translation: 适合用作步进电机的自启动单向旋转机具有永磁转子和一对沿转子轴向延伸的指状极片。 这些极片非对称地设置，使得例如一个极片的中心与另一极片的边缘基本上直径对齐。 偏置磁体产生流过极片的偏置磁通。 螺旋线圈在通电时提供与偏置通量相反的主转子通量并足以克服它。 在通电时，转子在从静止位置到第二位置的优选方向上转动180度电度。 然后，在断电时，转子从其第二位置转动180度电静止位置。

公开(公告)号：US4394595A

公开(公告)日：1983-07-19

申请号：US185330

申请日：1980-09-08

Applicant: Robert F. Weaver

Inventor： Robert F. Weaver

IPC: H02K21/12 ,  H02K21/00

CPC classification number: H02K21/12 ,  H02K2201/12 ,  Y10T29/49009

Abstract: A synchronous motor wherein a field coil is positioned adjacent to a rotor and stator assembly in a side-by-side relationship has a stator pole arrangement to compensate for flux phase differences caused by the side-by-side arrangement.

Abstract translation: 并联的励磁线圈与转子和定子组件相邻定位的同步电动机具有用于补偿由并排装置引起的通量相位差的定子极配置。

公开(公告)号：US4321495A

公开(公告)日：1982-03-23

申请号：US246607

申请日：1981-03-23

Applicant: Paul L. Kennedy

Inventor： Paul L. Kennedy

IPC: G01P3/487 ,  H02K21/12

CPC classification number: H02K21/125 ,  G01P3/487 ,  H02K2201/12

Abstract: A vehicle transmission mounted pulse generator module having a through drive shaft for driving a conventional speedometer cable, a rotor permanent magnet driven by the shaft with predetermined angular freedom therebetween for magnetically indexing the rotor magnet for useable signal generation at low speeds and a coaxial pickup coil assembly encircling the shaft and axially offset from the rotor magnet and compactly mounted with the rotor magnet within a housing sleeve inserted within a transmission housing bore to be driven for generating a pulse for each predetermined increment of travel of the associated vehicle.

Abstract translation: 一种车辆传动装置的脉冲发生器模块，其具有用于驱动常规速度计电缆的通过驱动轴，由轴驱动的转子永磁体，其具有预定的角度自由度，用于磁转子转子磁体以用于低速可用的信号生成和同轴拾取线圈 组件环绕轴并且与转子磁体轴向偏移并且紧密地安装有转子磁体，该壳体套筒插入在变速器壳体孔内，以被驱动以产生用于相关联的车辆的每个预定行程增量的脉冲。

公开(公告)号：US4131828A

公开(公告)日：1978-12-26

申请号：US859264

申请日：1977-12-09

Applicant: Teruo Houshi

Inventor： Teruo Houshi

IPC: G11B19/20 ,  H02K21/22 ,  H02K41/03 ,  H02P6/10 ,  H02K29/00

CPC classification number: H02K21/22 ,  G11B19/2009 ,  H02K41/03 ,  H02P6/10 ,  H02K2201/12

Abstract: An apparatus for rotatively driving a turn table comprising a motor including a rotor having an arrangement of a plurality of permanent magnet poles such that north and the south poles are alternately disposed in a circle on the turn table and a stator provided to be opposed to the arrangement of the permanent magnet poles and including three stator pole means for electromagnetically driving the rotor, three saturable core coils provided to be opposed to the rotor and disposed to bring about a phase difference of 120.degree. from each other with respect to the arrangement of the rotor magnet poles, an oscillator for providing a predetermined frequency signal, three amplitude modulators for amplitude modulating the oscillator signal as a function of the inductance value of the corresponding saturable core coils which varies in association with the revolution of the turn table, a diode for demodulating the amplitude modulated outputs of each of the modulators, an amplifier for amplifying each of the corresponding amplitude demodulated signals and supplying the same to one end of the corresponding drive coils of the stator pole means, and a feedback resistor coupled to the other end of each of the drive coils of the stator pole means, the other end of each of the feedback resistors being commonly connected.

Abstract translation: 一种用于旋转驱动转台的装置，包括电动机，该电动机包括具有多个永磁体的排列的转子，使得北极和南极交替地设置在转台上的圆圈中，并且定子被设置为与 永久磁极的布置，并且包括用于电磁驱动转子的三个定子极装置，设置成与转子相对设置的三个可饱和芯线圈，并设置成相对于 转子磁极，用于提供预定频率信号的振荡器，用于将振荡器信号幅度调制的三个幅度调制器，作为与转台转数相关的相应可饱和铁芯线圈的电感值的函数;二极管， 解调每个调制器的幅度调制输出，放大器用于放大eac 相应的振幅解调信号的h，并将其提供给定子极装置的相应驱动线圈的一端，以及耦合到定子极装置的每个驱动线圈的另一端的反馈电阻器，另一端 每个反馈电阻器通常连接。

公开(公告)号：US4074157A

公开(公告)日：1978-02-14

申请号：US729272

申请日：1976-10-04

Applicant: Melvin A. Lace

Inventor： Melvin A. Lace

IPC: G01P3/46 ,  G01P3/487 ,  H02K3/52 ,  H02K5/22 ,  H02K21/22 ,  H02K3/50

CPC classification number: G01P3/465 ,  G01P3/487 ,  H02K21/227 ,  H02K3/525 ,  H02K5/225 ,  H02K2201/12

Abstract: A sub-fractional A.C. signal generator incorporating a stator assembly comprising a coil wound upon an annular bobbin of molded insulator material, a pair of annular magnetically premeable stator members having alignment apertures snap-fit onto integral bosses projecting from the bobbin, in concentric relation in a stator sub-assembly, the two stator members affording a multiplicity of individual pole pieces interleaved one-for-one around the outer periphery of the coil. The sub-assembly and an insulator barrier are press fit onto opposite ends of a cylindrical stator support member within which a sleeve bearing is mounted to provide a complete stator assembly. A drive shaft is journalled in the stator bearing and carries an annular permanent magnet which encompasses the stator members but is spaced therefrom by a uniform radial air gap. A housing affixed to the insulator barrier encompasses rotor and stator assemblies.

Abstract translation: 一个小分数AC信号发生器，其包括一个定子组件，该定子组件包括缠绕在模制的绝缘体材料的环形线轴上的线圈，一对具有对准孔的环形磁性可预先定影构件，该对准孔与从线轴突出的整体凸台卡扣配合， 一个定子子组件，两个定子构件提供了多个单独的极片，其围绕线圈的外围一个接一个地交错。 子组件和绝缘体障碍物压配合到圆柱形定子支撑构件的相对端上，在其中安装套筒轴承以提供完整的定子组件。 驱动轴轴颈固定在定子轴承中，并带有环形永磁体，该环形永磁体包围定子构件，但是通过均匀的径向气隙与其隔开。 固定在绝缘体屏障上的外壳包括转子和定子组件。