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    ELECTRIC HORN WITH SOLID STATE DRIVER
    191.
    发明公开
    ELECTRIC HORN WITH SOLID STATE DRIVER 无效
    带固态驱动器的电喇叭

    公开(公告)号：EP0452427A1

    公开(公告)日：1991-10-23

    申请号：EP90911125.0

    申请日：1990-06-11

    Applicant: SPARTON CORPORATION

    Inventor： YOON, Young, Song

    IPC: G10K9 ,  B06B1

    CPC classification number: B06B1/0223 ,  B06B2201/53

    Abstract: Un klaxon électrique (50) possédant une membrane (14) connectée à un piston ferromagnétique (16) est commandé par une bobine électromagnétique (36) afin de créer des vibrations au niveau de la membrane (14) à la fréquence de résonance de l'ensemble que forment la membrane et le piston. Un dispositif de commande à semi-conducteurs (58) est équipé d'une horloge (70) syntonisée essentiellement sur la fréquence de l'ensemble de la membrane et règle la puissance de sortie du dispositif de commande pour réaliser l'excitation de la bobine afin d'entraîner le déplacement de la membrane en synchronisation avec la fréquence de l'horloge. L'étage de sortie du dispositif de commande comprend un MOSFET (80) de puissance ou un circuit de Darlington.

    Abstract translation: 连接到一个铁磁活塞（16）上的电喇叭（50）具有膜片（14）由一个电磁线圈（36）在的所述谐振频率下产生在膜（14）的振动控制 一起形成膜和活塞。 一种半导体控制装置（58）配备有基本上调谐到整个膜的的频率的时钟（70）和调整控制装置的输出功率，以实现线圈的激励 使隔膜与时钟频率同步移动。 控制器的输出级包括功率MOSFET（80）或达林顿电路。

    Electromechanical horn with excitation of its acoustic diaphragm controlled electronically by sensors which measure its resonance frequency
    192.
    发明公开
    Electromechanical horn with excitation of its acoustic diaphragm controlled electronically by sensors which measure its resonance frequency 失效
    机电一体机激励其由谐波频率传感器电子控制的声学膜

    公开(公告)号：EP0266485A3

    公开(公告)日：1988-11-02

    申请号：EP87107567

    申请日：1987-05-24

    Applicant: ELECTRONSYSTEM S.p.A.

    Inventor： Giorgioni, Tullio ,  Cortinovis, Bruno

    IPC: G10K09/13

    CPC classification number: B06B1/0269 ,  B06B2201/53

    Abstract: In this electromechanical horn (T), which is provided with an acoustic diaphragm (5) able to undergo movements induced in it by variable magnetic fields generated by an electromagnet (3), the electromagnet (3) which operates the diaphragm (5) is excited by frequencies generated by an electronic oscillator which are based on the value of the maximum diaphragm resonance frequency measured by a specific sensor (7).

    Abstract translation: 在这种机电喇叭（T）中，设有能够通过由电磁体（3）产生的可变磁场感应的运动的声膜（5），操作隔膜（5）的电磁体（3）是 由基于由特定传感器（7）测量的最大光阑谐振频率的值的电子振荡器产生的频率激发。

    Control of vibration energisation
    193.
    发明公开
    Control of vibration energisation 失效
    振动激励的控制。

    公开(公告)号：EP0216579A2

    公开(公告)日：1987-04-01

    申请号：EP86307016.5

    申请日：1986-09-11

    Applicant: NATIONAL RESEARCH DEVELOPMENT CORPORATION

    Inventor： MacCracken, William Cawdor ,  Waddell, Alexander John

    IPC: B06B1/02

    CPC classification number: B06B1/0261 ,  B06B2201/53 ,  B06B2201/70

    Abstract: An arrangement to controllably vibrate a resiliently supported body (10) including electromagnetic drive means (20) energisable to vibrate the body (10), means (30) to control the drive means, means (5) to detect the actual vibration of the body (10), the control means (30) including digital signal processing means to produce a control pulse train representing a required phase difference from the detected vibration to control the energisation of the drive means (20) with an independently set phase difference from the detected frequency to sustain the vibration of the body (10).

    Control circuit for vibratory devices
    194.
    发明公开
    Control circuit for vibratory devices 失效
    监视电路，用于振动设备。

    公开(公告)号：EP0128759A2

    公开(公告)日：1984-12-19

    申请号：EP84303889.4

    申请日：1984-06-08

    Applicant: THE ARTHUR G. RUSSELL COMPANY, INCORPORATED

    Inventor： Buchas, Gerald L.

    IPC: B06B1/04 ,  G05D19/02

    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 drive unit to maintain a desired vibratory amplitude under varying load and A.C. line voltage conditions.

    LOW-FREQUENCY LORENTZ FORCE BASED MARINE SEISMIC SOURCE
    196.
    发明公开
    LOW-FREQUENCY LORENTZ FORCE BASED MARINE SEISMIC SOURCE 审中-公开
    基于低频洛伦兹力的海洋地震源

    公开(公告)号：EP2891524A2

    公开(公告)日：2015-07-08

    申请号：EP14198114.2

    申请日：2014-12-16

    Applicant: PGS Geophysical AS

    Inventor： Oscarsson, Mattias ,  Traetten, Oystein ,  Voldsbekk, Rune ,  Tonnessen, Rune

    IPC: B06B1/04 ,  G01V1/135 ,  G01V1/38 ,  G10K11/20

    CPC classification number: G01V1/04 ,  B06B1/045 ,  B06B2201/53 ,  G01V1/135 ,  G01V1/38 ,  G01V2210/1214 ,  G10K11/205

    Abstract: This disclosure is related to marine seismic sources, for example marine seismic sources known in the art as benders. Some embodiments of this disclosure use Lorentz forces to produce seismic energy. For example, magnets (210) and wire coils (260) may be attached to one or more plates of a marine seismic source, and the Lorentz interaction between them may cause deformation of the plates to produce seismic energy. Such marine seismic sources may be components of a marine seismic survey system, and may be used in a method of marine seismic surveying. Methods of making marine seismic sources are also disclosed.

    Abstract translation: 本公开涉及海洋地震源，例如本领域已知的弯曲器的海洋地震源。 本公开的一些实施例使用洛伦兹力来产生地震能量。 例如，磁体（210）和线圈（260）可以附接到海洋地震源的一个或多个板，并且它们之间的洛伦兹相互作用可以导致板的变形以产生地震能量。 这样的海洋地震源可以是海洋地震勘测系统的组件，并且可以用于海洋地震勘测的方法中。 还公开了制造海洋地震源的方法。

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