-
21.发明申请公开(公告)号：US20030107336A1
公开(公告)日：2003-06-12
申请号：US09958075
申请日：2002-01-08
Inventor： Koichi Kobayashi , Shigemichi Sakata , Minoru Suzuki
IPC: H04M001/00 , H02K033/00
CPC classification number: B06B1/0261 , B06B1/0253 , B06B1/045 , B06B2201/53 , B06B2201/70
Abstract: There is provided a vibration generator that permits to operate by following a mechanical resonance point. The vibration generator 1 has a vibration generation portion 2 having an electromagnetic coil 13 and a magnet 11 float-fixed by a spring member 12. The electromagnetic coil 13 is square-wave driven to obtain vibration force. The vibration generator 1 comprises a driving control portion 10 for detecting a driving voltage of the electromagnetic coil 13 at a predetermined constant interval. By the driving control portion 10, a driving frequency of the electromagnetic coil 13 is made high when an induced voltage waveform of the driving voltage is of rightward increase type, and the driving frequency is made low when the induced voltage waveform is of leftward increase. This permits the driving frequency of the electromagnetic coil to be shifted to a resonance frequency of the vibration generation portion 2. Consequently, driving of the electromagnetic coil 13 can follow a mechanical resonance point so that an sufficiently large vibration can be obtained.
Abstract translation: 提供了一种振动发生器，其允许通过跟随机械共振点进行操作。 振动发生器1具有电磁线圈13的振动产生部分2和由弹簧部件12浮动固定的磁体11.电磁线圈13被方波驱动以获得振动力。 振动发生器1包括用于以预定的恒定间隔检测电磁线圈13的驱动电压的驱动控制部分10。 通过驱动控制部10，当驱动电压的感应电压波形为向右增加型时，电磁线圈13的驱动频率变高，并且当感应电压波形向左增加时驱动频率变低。 这允许电磁线圈的驱动频率移动到振动产生部分2的共振频率。因此，电磁线圈13的驱动可以跟随机械共振点，从而可以获得足够大的振动。
-
公开(公告)号：US5804733A
公开(公告)日：1998-09-08
申请号：US620676
申请日：1996-03-26
Applicant: Yutaka Kurita , Yasushi Muragishi , Hitoshi Yasuda
Inventor： Yutaka Kurita , Yasushi Muragishi , Hitoshi Yasuda
CPC classification number: B06B1/0246 , B06B3/00 , B06B2201/53 , B06B2201/70
Abstract: An elliptical vibratory apparatus includes first and second controllers; first and second power amplifiers for amplifying outputs of the first and second controllers; first and second vibratory exciters receiving outputs of the first and second power amplifiers for generating first and second vibrational forces in first and second directions; first and second vibrational systems of an elliptical vibratory machine receiving the first and second vibrational forces; and detectors of first and second vibrational displacements for detecting vibrational displacements of a movable part of the elliptical vibratory machine in the first and second direction. A closed loop is formed by the first and second controllers, the first and second power amplifiers, the first and second vibratory exciters, the first and second vibrational systems, and the detectors of the first and second vibrational displacements. The output of the detector of the second vibrational displacement is negatively fed-back to the first controller in the closed loop. Shift angles of the first and second phase shifters are so predetermined that there is a phase difference of 180 degrees between the output terminal of the detector of the second vibrational displacement and the input terminal of the first controller, when these terminals are cut off from each other, and a predetermined phase difference can be obtained between the vibrational displacements of the first and second vibratory systems for the optimum condition of the elliptical vibratory machine. The first vibratory system is self-excitedly vibrated at its resonant frequency and the second vibratory system is self-excitedly vibrated.
Abstract translation: 椭圆振动装置包括第一和第二控制器; 第一和第二功率放大器，用于放大第一和第二控制器的输出; 第一和第二振动激励器接收第一和第二功率放大器的输出，用于在第一和第二方向产生第一和第二振动力; 接收第一和第二振动的椭圆振动机的第一和第二振动系统; 以及第一和第二振动位移检测器，用于检测椭圆振动机在第一和第二方向的可移动部分的振动位移。 第一和第二控制器，第一和第二功率放大器，第一和第二振动激励器，第一和第二振动系统以及第一和第二振动位移的检测器形成闭环。 第二振动位移检测器的输出在闭环中负反馈给第一控制器。 第一移相器和第二移相器的移位角是如此预定的，当这些端子被切断时，在第二振动位移检测器的输出端与第一控制器的输入端之间存在180度的相位差 并且在椭圆振动机的最佳状态下，可以在第一和第二振动系统的振动位移之间获得预定的相位差。 第一振动系统以其共振频率自激振动，第二振动系统自激振动。
-
23.发明授权
公开(公告)号：US4554490A
公开(公告)日：1985-11-19
申请号：US540592
申请日：1983-10-11
Applicant: Junius D. Scott
Inventor： Junius D. Scott
CPC classification number: B06B1/0223 , B06B2201/53 , B06B2201/70
Abstract: A variable-frequency feeder control using a single oscillator to develop signals for moving materials in either one of two directions. An output signal from the oscillator is applied to a first timing circuit which develops signal pulses for driving a horizontal electromagnetic drive coil. The first timing circuit controls the duration of the signal pulses which determine the amplitude of power to drive the horizontal coil. The output signal from the oscillator is applied to a second timing circuit which developes a phase shifted signal to control the phase between the power applied to the horizontal coil and the power applied to a vertical drive coil. A third timing circuit uses the phase shifted signal to develop signal pulses for driving the vertical coil and controls the duration of the drive pulses.
Abstract translation: 使用单个振荡器的可变频率馈线控制器来开发用于沿两个方向中的任一方向移动材料的信号。 来自振荡器的输出信号被施加到产生用于驱动水平电磁驱动线圈的信号脉冲的第一定时电路。 第一定时电路控制确定驱动水平线圈的功率幅度的信号脉冲的持续时间。 来自振荡器的输出信号被施加到第二定时电路，其产生相移信号以控制施加到水平线圈的功率与施加到垂直驱动线圈的功率之间的相位。 第三定时电路使用相移信号产生用于驱动垂直线圈的信号脉冲并控制驱动脉冲的持续时间。
-
公开(公告)号：US4490654A
公开(公告)日：1984-12-25
申请号：US503028
申请日：1983-06-10
Applicant: Gerald L. Buchas
Inventor： Gerald L. Buchas
CPC classification number: B06B1/0253 , B06B2201/53 , B06B2201/70
Abstract: A vibratory amplitude controller for vibratory mechanisms such as a vibratory feeder having in addition to a parts container, an electromagnetic drive unit operated from an A.C. current source for imparting oscillatory motion to the parts container. The controller includes a sensing means for sampling the electromagnetic drive unit current during a specific predetermined interval each A.C. current cycle to produce a vibratory amplitude representing signal. Means responsive to the vibratory amplitude representing signal controls the amount of power delivered from the A.C. current source to the electromagnetic dive unit to maintain a desired vibratory amplitude under varying load and A.C. line voltage conditions.
Abstract translation: 一种用于振动机构的振动振幅控制器，例如除零件容器之外的振动给料器，电磁驱动单元，用于从交流电流源操作以向所述零件容器施加振荡运动。 控制器包括用于在每个交流电流周期的特定预定间隔期间对电磁驱动单元电流进行采样的感测装置，以产生表示信号的振动振幅。 响应于振动振幅表示信号的装置控制从交流电流源传递到电磁潜水单元的功率量，以在变化的负载和交流电压条件下保持期望的振动振幅。
-
公开(公告)号：US4395665A
公开(公告)日：1983-07-26
申请号：US271819
申请日：1981-06-09
Applicant: Gerald L. Buchas
Inventor： Gerald L. Buchas
CPC classification number: B06B1/0261 , B06B2201/53 , B06B2201/70
Abstract: A control system is disclosed for use with a device, such as a vibratory bowl feeder, having a bowl or other member mounted for vibratory motion and including an electromagnetic driver for vibratorily driving the part. The control system includes a detector for detecting the vibratory frequency of the part, which tends to vibrate at its resonant frequency, and causes energizing pulses of power to be supplied to the driver supplied at a frequency equal to the detected frequency. Thus, the driving frequency is made equal to the resonant frequency and follows changes in such frequency to obtain maximum performance. The power to the drivers is also switched so that during alternate pulses the current flows through the driver coil in opposite directions to inhibit buildup of residual magnetism in the coil core. The control system uses a phase-locked loop circuit and other parts comprised of components most of which are available as standard integrated circuits. A means for selectively varying the amplitude of member vibration is also included in the control system.
Abstract translation: 公开了一种用于与具有碗或其他安装用于振动运动的构件的装置（例如振动碗式进料器）一起使用的控制系统，并且包括用于振动地驱动该部件的电磁驱动器。 控制系统包括用于检测部件的振动频率的检测器，其倾向于以其谐振频率振动，并且使得向以所检测的频率等于的频率提供的驱动器提供供电的激励脉冲。 因此，使驱动频率等于谐振频率，并且遵循这种频率的变化以获得最大性能。 驱动器的电源也被切换，使得在交替脉冲期间，电流以相反的方向流过驱动器线圈，以抑制线圈芯中剩余磁性的累积。 控制系统使用锁相环电路和其他部件组成，其中大部分可用作标准集成电路。 用于选择性地改变振动振幅的装置也包括在控制系统中。
-
Patent Agency Ranking
公开(公告)号：US3931549A
公开(公告)日：1976-01-06
申请号：US517681
申请日：1974-10-24
Applicant: Charles Berns , Jacob Neuhof
Inventor： Charles Berns , Jacob Neuhof
CPC classification number: B06B1/0261 , H03K17/64 , B06B2201/53
Abstract: An electronic circuit including a transistor which is biased to conduction is provided to initiate actuation of an electromagnetic transducer. The transducer has first and second coils one of which actuates the sounder. A potential is induced in the other coil and this induced potential is used to cut off the transistor. The next cycle of operation is initiated when the induced potential falls below a predetermined value in response to the reduction of the magnetic flux which, in turn, was the result of the transistor having been cut off.
Abstract translation: 提供包括偏置于导通的晶体管的电子电路以启动电磁换能器的致动。 换能器具有第一和第二线圈，其中一个驱动发声器。 在另一个线圈中感应出一个电位，这个感应电位被用来切断晶体管。 当感应电位下降到预定值以下时，开始下一个操作周期，这是由于晶体管被切断的结果导致磁通量的减小。
-
公开(公告)号：US3846792A
公开(公告)日：1974-11-05
申请号：US19603271
申请日：1971-11-05
Applicant: HAIGH R
Inventor： HAIGH R
CPC classification number: G10K9/13 , B06B1/0284 , B06B2201/53 , G08B3/10
Abstract: An electric sound producing device includes a ferromagnetic diaphragm, an electromagnet for deforming the diaphragm and an oscillator for repeatedly supplying short duration current pulses to the electromagnets. The oscillator may be driven by a multivibrator to produce intermittent sound pulses or by a sawtooth pulse generator to produce sound with an apparently cyclically varying frequency.
Abstract translation: 电声产生装置包括铁磁隔膜，用于使隔膜变形的电磁体和用于向电磁体反复提供短持续电流脉冲的振荡器。 振荡器可以由多谐振荡器驱动以产生间歇声脉冲或由锯齿脉冲发生器产生具有明显周期性变化的频率的声音。
-
公开(公告)号：US2391669A
公开(公告)日：1945-12-25
申请号：US46166142
申请日：1942-10-12
Applicant: GEN MOTORS CORP
Inventor： BAKER ALBERT D
IPC: B06B1/02
CPC classification number: B06B1/0223 , B06B2201/53 , Y10T137/7786
-
公开(公告)号：US11972057B2
公开(公告)日：2024-04-30
申请号：US18306472
申请日：2023-04-25
Inventor： Tejasvi Das , Matthew Beardsworth , Michael A. Kost , Gavin McVeigh , Hamid Sepehr , Carl L. Ståhl
CPC classification number: G06F3/016 , B06B1/0207 , B06B1/045 , G08B6/00 , B06B2201/53
Abstract: Embodiments described herein relate to methods and apparatuses for controlling an operation of a vibrational output system and/or an operation of an input sensor system, wherein the controller is for use in a device comprising the vibrational output system and the input sensor system. A controller comprises an input configured to receive an indication of activation or de-activation of an output of the vibrational output system; and an adjustment module configured to adjust the operation of the vibrational output system and/or the operation of the input sensor system based on the indication to reduce an interference expected to be caused by the output of the vibrational output system on the input sensory system.
-
30.发明公开公开(公告)号：US20240013767A1
公开(公告)日：2024-01-11
申请号：US18219982
申请日：2023-07-10
Applicant: ECOLE DE TECHNOLOGIE SUPERIEURE
Inventor： Pierre Belanger , Aurélien Thon
CPC classification number: G10K11/32 , B06B1/045 , G01N29/262 , G01N29/223 , G10K11/346 , B06B2201/53
Abstract: There is provided an electromagnetic acoustic transducer comprising a waveguide having a surface, and a plurality of spaced elements arranged in an array on the surface of the waveguide. Each element of the plurality of elements comprises a magnet and a coil wound around the magnet. A direction of magnetization of the plurality of elements alternating from one of the plurality of elements to a next one of the plurality of elements.
-
-
-
-
-
-
-
-
-
Search Results
69
records
(took 0.011 seconds)
