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1.发明申请公开(公告)号：US20190145164A1
公开(公告)日：2019-05-16
申请号：US16186130
申请日：2018-11-09
申请人： VKR Holding A/S
IPC分类号： E06B9/42
CPC分类号： E06B9/42 , E06B9/60 , E06B9/72 , E06B9/88 , E06B2009/6854 , E06B2009/6872 , E06B2009/725 , G01P3/465
摘要： A method for determining a fully extended position of a screening body (14) of a screening device (12) for a roof window. The screening device (12) comprises a control unit comprising a data storage device, an electric motor (18) comprising a tachometer (181), a roller tube (15), a screening body (14) and a first and a second spring element (164, 174). The method comprises the steps of driving the screening body (14) from a fully retracted position to a fully extended position, in which the spring elements (164, 174) are tensioned to a first tension level, T1, stopping the electric motor (18) at a point at which the spring elements (164, 174) are tensioned to a second tension level, T2, above the first tension level, T1, measuring the number of revolutions, Rd, of the roller tube (15) necessary to drive the screening body (14) to the said position at which the motor (18) is stopped, storing the measured number of revolutions, Rd, in the data storage device, measuring the number of revolutions, Rb, of the roller tube, that a release of a tension corresponding to the difference, ΔT, between the first tension level, T1, and the second tension level, T2, will cause the roller tube (15) to move back towards the fully retracted position, storing the number of revolutions, Rb, in the data storage device, and calculating and storing in the data storage device a value R=Rd−Rb.
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公开(公告)号：US20140266156A1
公开(公告)日：2014-09-18
申请号：US13799637
申请日：2013-03-13
申请人： WOODWARD, INC.
发明人： Stephen B. Warner
IPC分类号： G01P3/46
摘要： In some aspects of what is described herein, an aircraft wheel speed sensor system includes a pair of conductors coupled between an electro-mechanical system and a control system. The control system is configured to apply a carrier voltage signal to the pair of conductors and to detect a modulated current signal on the pair of conductors. The electro-mechanical system includes a stator and a rotor that moves upon rotation of an aircraft wheel. The stator includes a winding disposed about the rotor. The winding is configured to produce the modulated current signal on the pair of conductors in response to movement of the rotor. The modulated current signal has a frequency that is dependent on a rotational speed of the aircraft wheel.
摘要翻译： 在这里描述的一些方面，飞行器轮速传感器系统包括耦合在机电系统和控制系统之间的一对导体。 控制系统被配置为将载波电压信号施加到该对导体并且检测该对导体上的调制电流信号。 机电系统包括定子和在飞行器轮的旋转时移动的转子。 定子包括围绕转子设置的绕组。 绕组被配置为响应于转子的移动而在该对导体上产生调制电流信号。 调制电流信号具有取决于飞行器轮的转速的频率。
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公开(公告)号：US4572999A
公开(公告)日：1986-02-25
申请号：US504121
申请日：1983-06-14
CPC分类号： G01P3/465 , Y10S322/05
摘要： A brushless tachometer in which output signal switching is achieved using field effect transistors and which is capable of achieving linearity over a broad range, particularly the zero speed region. According to a preferred embodiment, the brushless tachometer is operated in a current mode as part of the servo loop to substantially reduce tachometer voltage switching requirements. A ROM can be used to control commutation switching. Commutation is preferable line-to-neutral to reduce ripple.
摘要翻译： 一种无刷转速计，其中使用场效应晶体管实现输出信号切换，并且能够在宽范围，特别是零速度区域上实现线性度。 根据优选实施例，无刷转速计作为伺服回路的一部分以电流模式运行，以显着降低转速计电压切换要求。 可以使用ROM来控制换向切换。 换向优于线到中线，以减少纹波。
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公开(公告)号：US4248082A
公开(公告)日：1981-02-03
申请号：US973858
申请日：1978-12-28
申请人： D. Eugene Farmer
发明人： D. Eugene Farmer
摘要： An anemometer which reads the airspeed in digital numbers by light-emitting diodes. A small electric generator is operated by a windmill. This generator output is sent through digital circuitry and ultimately read out in numbers on LEDs.
摘要翻译： 一个用发光二极管读数字数字的风速计。 小型发电机由风车运行。 该发生器输出通过数字电路发送，最终在LED上数字地读出。
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公开(公告)号：US4209719A
公开(公告)日：1980-06-24
申请号：US918403
申请日：1978-06-23
申请人： Fritz Schadlich
发明人： Fritz Schadlich
摘要： In order to permit the removal of tachogenerator elements during maintenance services performed on the machinery, the magnet assembly of the tachogenerator is stationary, and soft iron core elements are affixed to the rotating shaft of the machinery. For servicing the machinery, the core elements may be removed without disturbing the alignment or calibration of the magnet assembly.
摘要翻译： 为了在机器进行的维护服务期间允许拆卸测速发电机元件，测速发电机的磁体组件是静止的，软铁芯元件固定在机械的旋转轴上。 为了维修机械，可以去除芯元件，而不会妨碍磁体组件的对准或校准。
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公开(公告)号：US4095177A
公开(公告)日：1978-06-13
申请号：US747468
申请日：1976-12-03
申请人： Geoffrey John Harris
发明人： Geoffrey John Harris
CPC分类号： H02K17/42 , G01P13/045 , G01P3/465 , G01P3/49 , H01F29/10
摘要： A transducer to monitor velocity and direction of movement having a magnetic core with at least three spaced apart poles. Two of the poles include coils which are wired series aiding for connection to an input alternating voltage, which upon current flow create a magnetic field intersecting the path of movement of an object being monitored. The third pole includes a coil in which an alternating output voltage is induced when the monitored object moves. The magnitude of such output voltage varies with the rate of speed of the monitored object. The phase relationship of output voltage to input voltage varies with the direction in which the monitored object moves. The coil in the third pole is connected to responsive means to receive the output signal and control, or indicate, the speed as well as the direction of movement of the monitored object.
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公开(公告)号：US4074157A
公开(公告)日：1978-02-14
申请号：US729272
申请日：1976-10-04
申请人： Melvin A. Lace
发明人： Melvin A. Lace
CPC分类号： G01P3/465 , G01P3/487 , H02K21/227 , H02K3/525 , H02K5/225 , H02K2201/12
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US3886385A
公开(公告)日：1975-05-27
申请号：US30670672
申请日：1972-11-15
摘要： The rate of motion of a relatively large body with respect to another body is detected by apparatus carried on the bodies. A magnet on one body provides a magnetic field between pole pieces and a set of relatively short electrical conductors, each conductor extending transversely from a relatively long electrical conductor, all carried on the other body, is positioned thereon to move through the magnetic field, one short conductor after another. An electrical contact contacts the extending end of at least one short conductor at a time while the contacted conductor is moving in the magnetic field, producing an electrical signal between the contact and the long conductor, which is representative of the rate of motion.
摘要翻译： 相对较大的身体相对于另一身体的运动速度可通过装在身体上的装置来检测。 一个磁体在一个磁体之间提供一个磁场，一个相对较短的电导体组成一个相对较短电导体的导体，每个导体从相对较长的电导体横向延伸，全部承载在另一个主体上，位于其上以移动穿过磁场，一个 短导体又一个。 电触点在接触导体在磁场中移动时一次接触至少一根短导体的延伸端，产生代表运动速率的触点和长导体之间的电信号。
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公开(公告)号：US3710158A
公开(公告)日：1973-01-09
申请号：US3710158D
申请日：1971-11-01
申请人： BOSCH GMBH ROBERT
发明人： BACHLE K , FINKBEINER L , TAUBITZ B
CPC分类号： H02K21/227 , G01P3/465 , H02K21/145 , H02K2201/12 , Y02T10/641
摘要： An alternating current generator has a rotor with a circular row of permanent magnetic poles which are alternately of opposite polarity, and a stator with U-shaped stator poles whose legs project in radial direction toward the rotor poles. The legs of each stator pole have circumferentially and axially spaced end portions located opposite two adjacent rotor poles of opposite polarity, respectively. An annular stator winding is located within the open annular space formed by the U-shaped stator poles.
摘要翻译： 交流发电机具有交替具有相反极性的具有圆形永久磁极列的转子和具有U形定子极的定子，该定子极的腿朝向转子极径向突出。 每个定子极的腿分别具有相对极性的两个相邻转子极相对的周向和轴向间隔开的端部。 环形定子绕组位于由U形定子极形成的开放环形空间内。
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