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1. 发明授权

EP3524946B1 FUNCTIONAL SELF-TEST FOR A PIEZOELECTRIC ELEMENT DEPLOYED IN AN END-PRODUCT 有权
公开(公告)号：EP3524946B1
公开(公告)日：2024-07-10
申请号：EP18156383.4
申请日：2018-02-12
IPC分类号： G01H3/00 , G01R31/28 , G01R29/22 , G01D21/00 , G01D18/00 , G01P21/00
CPC分类号： G01H3/005 , G01H11/08 , G01R31/2829 , G01R31/2836 , G01R29/22 , G01R31/01

2. 发明公开

EP2990813A4 ELECTRIC NEAR-FIELD PROBE, CONTROL SYSTEM FOR SAME, AND PIEZOELECTRIC CRYSTAL DETECTOR 失效
标题翻译： ELEKTRISCHE NAHFELDSONDE，STEUERUNGSSYSTEMDAFÜRUND PIEZOELEKTRISCHER KRISTALLDETEKTOR
公开(公告)号：EP2990813A4
公开(公告)日：2016-12-28
申请号：EP14785728
申请日：2014-04-03
申请人： UNIV OSAKA
发明人： AKABA HIDEO , ITOZAKI HIDEO , SHINOHARA JUNICHIRO , MIYATO YUJI , KATSUTANI FUMIYA
IPC分类号： G01R29/08 , G01N27/02 , G01N29/24 , G01R29/22 , G01V3/02 , G01V3/08
CPC分类号： G01V3/02 , G01N29/2443 , G01R29/0814 , G01R29/0878 , G01R29/22 , G01V3/088
摘要： Provided is a compact and lightweight electric field probe which has a transmitting/receiving function whereby piezoelectric crystals can be excited through the application of an alternating current electric field thereto, and piezoelectric effect signals can be detected with sufficient sensitivity. Also provided are a control system for the same, and a piezoelectric crystal detector. The electric near-field probe is provided with a capacitor, in which the space between two metal plates that are positioned parallel to each other is filled by a conductor or air, and a series resonance circuit, which has a prescribed resonance frequency and is connected in series to an inverter that is formed by winding a conductive wire around a toroidal core. The electric near-field probe is configured such that: an electric near-field, which originates from the leakage electric field from the capacitor generated by the application of alternating current voltage to the series resonance circuit, is transmitted to the piezoelectric crystals, and the piezoelectric crystals are excited; and the piezoelectric effect signal, which is generated by the excited piezoelectric crystals, is received by the capacitor, and is detected by the series resonance circuit. The control system is for said electric near-field probe.
摘要翻译：本发明提供一种具有发送/接收功能的紧凑且重量轻的电场探针，由此可以通过施加交流电场来激发压电晶体，并且可以以足够的灵敏度检测压电效应信号。还提供了用于其的控制系统和压电晶体检测器。电近场探针设置有电容器，其中彼此平行定位的两个金属板之间的空间由导体或空气填充，并且串联谐振电路具有规定的谐振频率并被连接与通过将导线围绕环形芯线缠绕而形成的逆变器串联连接。电近场探测器被配置为使得从通过对串联谐振电路施加交流电压而产生的电容器的漏电场产生的电近场被传送到压电晶体，并且压电晶体激发; 由激发的压电晶体产生的压电效应信号由电容器接收，并由串联谐振电路检测。控制系统用于所述电近场探头。

3. 发明公开

EP1215737A3 Polarization apparatus and polarization method of coaxial flexible piezoelectric cable 审中-公开
标题翻译：偏振装置和偏振方法用于柔性压电同轴电缆
公开(公告)号：EP1215737A3
公开(公告)日：2005-05-11
申请号：EP01129761.1
申请日：2001-12-13
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Ebisawa, Mitsuo , Nagai, Takeshi , Kanazawa, Narutoshi , Ito, Masahiko , Fujii, Yuko , Sugimori, Tooru
IPC分类号： H01L41/087 , H01L41/22
CPC分类号： H01L41/45 , G01R29/22 , H01L41/087 , H01L41/257
摘要： A polarization apparatus is provided wherein a piezoelectric body tube 3 is wound around a first rotation drum 5 and a second rotation drum 6 and a coaxial flexible piezoelectric body 2 is polarized while the piezoelectric body tube 3 is wound. According to the polarization apparatus, polarization can be conducted except for the coaxial flexible piezoelectric body 2 of the portion containing a defect and a defect existing in the piezoelectric body tube 3 of a given length can also be detected be fore an outer electrode 4 is formed.

4. 发明公开

EP0785619A3 Verfahren zur rechnergestützten iterativen Bestimmung des Einschwingverhaltens einer Quarzresonatorschaltung 失效
标题翻译：一种用于计算机辅助迭代确定的石英谐振器电路的瞬态响应的方法
公开(公告)号：EP0785619A3
公开(公告)日：1999-03-17
申请号：EP97100542.6
申请日：1997-01-15
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Feldmann, Jörg-Uwe, Dr. , Schmidt-Kreusel, Christof , Zheng, Qinghua, Dr.
IPC分类号： H03H9/00
CPC分类号： G01R29/22 , G06F17/5036
摘要： Die Erfindung betrifft ein Verfahren, bei dem nach einer Arbeitspunktbestimmung der Quarzresonatorschaltung eine Substitution der Ersatzschaltung des Quarzresonators durch eine unabhängige Stromquelle mit der initialen, zuvor ermittelten Amplitude des Stroms des dynamischen Arms des Quarzresonators durchgeführt. Für diese Schaltungsanordnung wird mittels Schießverfahren oder Verfahren der Harmonischen Balance, also im Frequenzbereich, der dynamische Gleichgewichtszustand ermittelt. Nach einer Rücksubstitution der Stromquelle durch das Ersatzschaltbild des Quarzresonators wird eine Transientenanalyse für den dynamischen Gleichgewichtszustand durchgeführt. Dieses Verfahren wird iterativ solange durchgeführt, solange die ermittelte Wachstumsrate αi über einer vorgebbaren Schranke liegt.

5. 发明授权

EP0442670B1 Four frequency measuring process for coupled-dual resonator crystals 失效
标题翻译：用于耦合的两个谐振器的晶体的四频率测量方法
公开(公告)号：EP0442670B1
公开(公告)日：1997-04-02
申请号：EP91301050.0
申请日：1991-02-11
申请人： Ericsson GE Mobile Communications Inc.
发明人： Roberts, Gerald Ewing , Toliver, Samuel , Daniels, John Updyke, Jr.
IPC分类号： G01R29/22
CPC分类号： G01R29/22 , G01R27/2688

6. 发明授权

EP2612374B1 VERFAHREN ZUR KONTROLLE VON BIEGESCHWINGUNGEN EINES PIEZOAKTUATORS 有权
标题翻译：控制弯曲振动方法压电致动器
公开(公告)号：EP2612374B1
公开(公告)日：2015-03-25
申请号：EP11769798.7
申请日：2011-09-02
申请人： Epcos AG
发明人： GABL, Reinhard
IPC分类号： H01L41/053 , H01L41/25
CPC分类号： H01L41/25 , G01H1/04 , G01R29/22 , H01L41/053 , Y10T29/42

7. 发明公开

EP1288646A2 Method and apparatus for measuring a material property 有权
标题翻译： Verfahren und Vorrichtung zur Messung einer Materialeigenschaft
公开(公告)号：EP1288646A2
公开(公告)日：2003-03-05
申请号：EP02255993.4
申请日：2002-08-29
申请人： National Institute of Advanced Industrial Science and Technology
发明人： Ichiki, Masaaki , Ozaki, Koichi , Kitahara, Tokio , Tanaka, Makoto
IPC分类号： G01N3/00
CPC分类号： G01R29/22 , G01N3/08
摘要： A method and apparatus is provided for measuring mechanical and electrical properties of specimens, in particular transducer properties (e.g., electromechanical coupling constant) of piezoelectrics. Three measurement specimens each of the same material and the same dimension and having parallel planes, and two insertion plates each of the same material and the same dimension and having known mechanical properties, are stacked alternately, a load is applied to these measurement specimens and insertion plates via the outer measurement specimens, displacements in the direction of application of the load are measured before and after application of the load, and an elastic constant of the middle measurement specimen is determined based on those displacements. Measurement of the electromechanical coupling constant of piezoelectric specimens is achieved using the same apparatus under short-and-open circuit conditions.
摘要翻译：提供了一种用于测量样品的机械和电学性质，特别是压电体的换能器性质（例如机电耦合常数）的方法和装置。三个相同材料和相同尺寸的测量样品具有平行的平面，并且具有相同材料和相同尺寸并具有已知机械性能的两个插入板交替堆叠，将负载施加到这些测量样品和插入通过外部测量样品的板材，在施加负载之前和之后测量负载施加方向上的位移，并且基于这些位移来确定中间测量样品的弹性常数。使用相同的设备在短路和开路条件下测量压电样品的机电耦合常数。

8. 发明公开

EP0845127A1 APPARATUS FOR DETECTING PRESENCE OF PIEZOELECTRIC MATERIAL 失效
标题翻译：设备，以检测压电材料
公开(公告)号：EP0845127A1
公开(公告)日：1998-06-03
申请号：EP96925042.0
申请日：1996-08-08
申请人： THE WHITAKER CORPORATION
发明人： BROWN, Richard, Hunter
IPC分类号： B44F1 , G01R29 , G06K7 , G06K19 , G07D7
CPC分类号： G07D7/12 , G01R29/22 , G06K7/081 , G06K19/10 , G07D7/026
摘要： An apparatus (2) comprising one substantially transparent electrode (12), a second shielded electrode (10) where the document (26) is to be placed between the first and second electrodes (12, 10), an optical device (18) capable of generating a rapid optical pulse that would be incident upon the document and an electrical impulse detection device connected to the second electrode (10) for detecting charge given off by the piezoelectric material in response to the optical pulse.

9. 发明公开

EP0775295A1 A PIEZOELECTRIC CRYSTAL MICROBALANCE DEVICE 有权转让
标题翻译：压电石英晶体微尺度
公开(公告)号：EP0775295A1
公开(公告)日：1997-05-28
申请号：EP96914494.0
申请日：1996-05-03
申请人： Rodahl, Michael , Höök, Fredrik , Krozer, Anatol , KASEMO, Bengt
发明人： Rodahl, Michael , Höök, Fredrik , Krozer, Anatol , KASEMO, Bengt
IPC分类号： G01G3 , G01N5 , G01N27 , G01R29
CPC分类号： G01N29/022 , G01G3/16 , G01N5/00 , G01N29/032 , G01N29/036 , G01N2291/02818 , G01N2291/02845 , G01N2291/0426 , G01R29/22
摘要： A device and a process for measuring resonant frequency and dissipation factor of a piezoelectric resonator are presented. After exciting the said resonator to oscillation, the driving power to the said oscillator is turned off after which the decay of the oscillation of the resonator is recorded and used to give a measure of at least one of said resonators properties: dissipation factor, changes in said dissipation factor, resonant frequency, and changes in said resonant frequency.

10. 发明公开

EP0442670A1 Four frequency measuring process for coupled-dual resonator crystals 失效
标题翻译： Vier-Frequenz-Messverfahrenfürgekoppelte Zwei-Resonator-Kristalle。
公开(公告)号：EP0442670A1
公开(公告)日：1991-08-21
申请号：EP91301050.0
申请日：1991-02-11
申请人： Ericsson GE Mobile Communications Inc.
发明人： Roberts, Gerald Ewing , Toliver, Samuel , Daniels, John Updyke, Jr.
IPC分类号： G01R29/22
CPC分类号： G01R29/22 , G01R27/2688
摘要： A third case or manner of obtaining the four critical frequencies useful in accurately measuring coupled-dual resonator crystals, wherein both ports of the crystal structure are monitored, rather than a single port in the previously known cases. Here the B port, for example, is monitored with the A-side open-circuited or with a capacitor in parallel with it, and the A port is monitored with the B-side short-circuited.
摘要翻译：获得四个临界频率的第三种情况或方式可用于准确测量耦合双谐振器晶体，其中监测晶体结构的两个端口，而不是先前已知情况下的单个端口。这里，例如，B端口以A侧开路或与其并联的电容器进行监控，A端口被B侧短路监视。

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