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公开(公告)号：EP0367681A1
公开(公告)日：1990-05-09
申请号：EP89403032.9
申请日：1989-11-03
申请人： THOMSON-CSF
发明人： Tocquet, Bernard , Letiche, Michel
CPC分类号： G10K9/121 , B06B1/0618
摘要： Le transducteur flextenseur selon l'invention permet l'émission et la réception d'ondes acoustiques dans l'eau à de très grandes profondeurs. Il comprend au moins un pilier de cellules piézoélectriques (2), placé à l'intérieur d'une coque (1) étanche. Chaque pilier (2) est maintenu en appui seulement par une première extrémité à la coque (1) et est compressé sur la coque (1) par une contremasse (5) appliquée à sa deuxième extrémité.
Application : Sonar摘要翻译： 根据本发明的挠性 - 换能器换能器允许在非常深的深度处在水中发射和接收声波。 它包括至少一个压电单元柱（2），放置在密封的外壳（1）内。 每个支柱（2）仅由第一端支撑到壳体（1），并且通过施加到其第二端的配重（5）压缩在壳体（1）上。 应用：声纳
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公开(公告)号：EP0215657B1
公开(公告)日：1990-03-21
申请号：EP86307067.8
申请日：1986-09-12
CPC分类号： B06B1/0611 , G10K9/121 , Y10T29/49005
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公开(公告)号：EP0297100A1
公开(公告)日：1989-01-04
申请号：EP87901597.0
申请日：1987-03-17
CPC分类号： B06B1/0611 , G10K9/121 , H04R1/44
摘要： Un transducteur flexionnel de puissance élevée et à basse fréquence, destiné à être utilisé sous l'eau, comprend un certain nombre de piles d'éléments piézo-électriques espacés (22, 23, 24) placées entre des inserts opposés (28). Les piles sont disposées sur le plan traversant l'axe principal d'une enveloppe flexionnelle elliptique (21) et les inserts (28) sont façonnés de façon à épouser la forme elliptique. Les piles sont assemblées avec un premier groupe de supports à section décroissante (29') et des curseurs à section décroissante complémentaires (210) sont calés entre les inserts (28) de l'enveloppe et les supports (29'), jusqu'à ce que l'enveloppe exerce une précontrainte requise sur les piles d'éléments piézo-électriques. Des plaques extrêmes (16) sont fixées à l'enveloppe elliptique (11), afin de compléter le transducteur. Une couche (31) de néoprène est appliquée par compression sur l'enveloppe (11), laquelle comprend un joint d'étanchéité à bec dentelé périphérique (32) appuyant hermétiquement contre la plaque extrême (16) tout en permettant la flexion de l'enveloppe. Un organe assurant de bonnes caractéristiques de fonctionnement sur des largeurs de bande étendues est également décrit. Afin d'étendre la plage des profondeurs de fonctionnement, la cavité du transducteur est remplie d'un gaz dont la pression de vapeur peut être régulée par température.
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44.发明公开Piezoelectric transducers with mechanical amplification for very low frequencies and acoustic antennas 失效具有非常低的频率和声学天线的机械放大的压电传感器
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公开(公告)号：EP3286755A1
公开(公告)日：2018-02-28
申请号：EP16709755
申请日：2016-03-10
申请人： BOSCH GMBH ROBERT
发明人： KARL MATTHIAS
摘要： The invention relates to a device (1) for transmitting acoustic signals in a primary direction (2) and/or receiving acoustic signals from the primary direction (2), in particular in order to sense a vehicle environment, comprising an electroacoustic transducer (3) and a deflecting element (4). The electroacoustic transducer (3) is designed, when acoustic signals are transmitted, to transmit the acoustic signal in the primary direction (2) and a backward direction (5) and/or, when acoustic signals are received, to be excited by the acoustic signal from the primary direction (2) and from the backward direction (5). The deflecting element (4) is designed, when acoustic signals are transmitted, to deflect the acoustic signal output in the backward direction (5) into the primary direction (2) over a first acoustic path (6) in such a way that said acoustic signal passes the electroacoustic transducer (3) to the side thereof and/or, when acoustic signals are received, to deflect the acoustic signal, which arrives from the primary direction and passes the electroacoustic transducer (3) to the side thereof, over the first acoustic path (6) in such a way that said acoustic signal hits the electroacoustic transducer (3) from the backward direction (5).
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46.发明公开
公开(公告)号：EP3110628A4
公开(公告)日：2017-10-11
申请号：EP15754603
申请日：2015-02-27
申请人： UNIV CALIFORNIA
发明人： BOSER BERNHARD , HORSLEY DAVID , PRZYBYLA RICHARD , ROZEN OFER , SHELTON STEFON
CPC分类号： H01L41/335 , B06B1/0622 , B06B1/0666 , G10K9/121 , G10K9/122 , G10K13/00 , H01L41/083 , H01L41/0973 , H01L41/1138 , H01L41/187 , H01L41/332
摘要： A diaphragm for a piezoelectric micromachined ultrasonic transducer (PMUT) is presented having resonance frequency and bandwidth characteristics which are decoupled from one another into independent variables. Portions of at least the piezoelectric material layer and backside electrode layer are removed in a selected pattern to form structures, such as ribs, in the diaphragm which retains stiffness while reducing overall mass. The patterned structure can be formed by additive, or subtractive, fabrication processes.
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47.发明公开APPARATUS WITH THERMAL STRESS RELIEF MECHANISM FOR HEAT GENERATING COIL AND ASSOCIATED METHODS 审中-公开与机构装置以降低热发电加热线圈的和相关程序
公开(公告)号：EP3136129A2
公开(公告)日：2017-03-01
申请号：EP16185851.9
申请日：2016-08-26
申请人： PGS Geophysical AS
CPC分类号： G01V1/02 , G01V1/145 , G01V1/3808 , G01V2210/1293 , G10K9/121
摘要： Embodiments relate to a marine acoustic vibrator (100) for marine geophysical surveys. An embodiment may include an apparatus, wherein the apparatus may comprise: a coil element (122) comprising a coil (128); a coil clamp (138) constraining motion of the coil element in at least one direction; and a spring (162) disposed in a load path of the coil clamp. Additional apparatus and methods are disclosed herein.
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公开(公告)号：EP2221708B1
公开(公告)日：2012-10-17
申请号：EP10165999.3
申请日：2002-11-27
申请人： Nokia Corporation
发明人： Tuovinen, Juhani
IPC分类号： G06F3/01
CPC分类号： G08B3/10 , B06B1/0215 , G06F3/016 , G06F3/0202 , G06F3/0488 , G08B6/00 , G08B7/06 , G10K9/00 , G10K9/12 , G10K9/121 , G10K9/122 , G10K9/125 , H01H13/84 , H01H2215/052 , H03K17/96 , H03K2217/96062 , H04M19/02 , H04W68/00
摘要： The invention relates to an apparatus (1) comprising a keypad (2), and means for generating a tactile response to a user of the apparatus when a key in said keypad is pressed. In order accomplish a simple construction requiring a minimum of space, said means for generating a tactile response include at least one piezoelectric element (3) arranged to generate vibration which is forwarded to the user via a key when said key is pressed.
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公开(公告)号：EP2480346A1
公开(公告)日：2012-08-01
申请号：EP09744932.6
申请日：2009-09-22
发明人： BUSCH, Rainer
IPC分类号： B06B1/06
CPC分类号： G10K9/121
摘要： The invention relates to an electroacoustic transducer comprising an actuator (11), which oscillates longitudinally when an alternating voltage is applied. In order to substantially reduce the weight of the transducer while maintaining a sufficiently high sound power, especially transmission power, the actuator (11) consists of a tube (14), especially a plastic tube, and at least one composite module (15) that is rigidly connected to the tube wall (141) of the tube. The at least one composite module (15) comprises electrode structures which are arranged on at least two film layers of an electrically insulating material and which have interspaced electrodes and interspaced piezoceramic fibers that are arranged between the film layers and are contacted by the electrodes on ends facing away from each other.
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50.发明公开Control system for marine vibrators and seismic acquisition system using such control system 审中-公开对于海洋振动器和地震采集系统，这种控制系统的控制系统
公开(公告)号：EP2267486A3
公开(公告)日：2012-07-11
申请号：EP10166840.8
申请日：2010-06-22
申请人： PGS Geophysical AS
摘要： A method for controlling output of a marine seismic vibrator includes operating the vibrator using a predetermined driver signal. A vibrator output signal is measured at at least two different places on the vibrator. The at least two measured vibrator output signals are used to determine a corrected driver signal, wherein the corrected driver signal results in fewer harmonics of fundamental frequencies in the vibrator output. The vibrator is operated using the corrected driver signal.
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