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1. 发明授权

US08324784B2 Method for tuning a resonant frequency of a piezoelectric component 有权
标题翻译：调谐压电元件谐振频率的方法
公开(公告)号：US08324784B2
公开(公告)日：2012-12-04
申请号：US12970633
申请日：2010-12-16
申请人： Guenter Engel , Michael Huainig , Markus Puff , Thomas Wippel
发明人： Guenter Engel , Michael Huainig , Markus Puff , Thomas Wippel
IPC分类号： H01L41/08
CPC分类号： H01L41/083 , H01L41/0471 , H01L41/0926 , H02N2/0015 , H02N2/008 , H03H9/17 , H03H2009/02196
摘要： A method for tuning a resonant frequency of a piezoelectric component is disclosed. The piezoelectric component includes a transducer extending in three spatial directions. The resonant frequency depends on an extension in at least one of the spatial directions and/or on a material-dependent elasticity modulus. The transducer includes a layered structure with at least two first electrodes and at least one second electrode, which is disposed between the two first electrodes. In the method, a DC voltage is applied to at least one of the at least two first electrodes and the at least one second electrode, so that a change of the resonant frequency results due to a change to the extension in the one spatial direction and the elasticity modulus. A control voltage with an excitation frequency is applied, the excitation frequency substantially corresponding to the modified resonant frequency. This generates a vibration of the piezoelectric component.
摘要翻译：公开了一种用于调谐压电元件的谐振频率的方法。压电元件包括在三个空间方向上延伸的换能器。谐振频率取决于空间方向中的至少一个和/或材料依赖弹性模量上的延伸。换能器包括具有至少两个第一电极和至少一个第二电极的分层结构，其设置在两个第一电极之间。在该方法中，DC电压被施加到至少两个第一电极和至少一个第二电极中的至少一个，使得谐振频率的变化是由于一个空间方向上的延伸的变化而导致的，并且弹性模量。施加具有激励频率的控制电压，激励频率基本上对应于修改的谐振频率。这产生压电元件的振动。

2. 发明申请

US20110169374A1 Method for Tuning a Resonant Frequency of a Piezoelectric Component 有权
标题翻译：调谐压电元件谐振频率的方法
公开(公告)号：US20110169374A1
公开(公告)日：2011-07-14
申请号：US12970633
申请日：2010-12-16
申请人： Guenter Engel , Michael Huainig , Markus Puff , Thomas Wippel
发明人： Guenter Engel , Michael Huainig , Markus Puff , Thomas Wippel
IPC分类号： H01L41/107
CPC分类号： H01L41/083 , H01L41/0471 , H01L41/0926 , H02N2/0015 , H02N2/008 , H03H9/17 , H03H2009/02196
摘要： A method for tuning a resonant frequency of a piezoelectric component is disclosed. The piezoelectric component includes a transducer extending in three spatial directions. The resonant frequency depends on an extension in at least one of the spatial directions and/or on a material-dependent elasticity modulus. The transducer includes a layered structure with at least two first electrodes and at least one second electrode, which is disposed between the two first electrodes. In the method, a DC voltage is applied to at least one of the at least two first electrodes and the at least one second electrode, so that a change of the resonant frequency results due to a change to the extension in the one spatial direction and the elasticity modulus. A control voltage with an excitation frequency is applied, the excitation frequency substantially corresponding to the modified resonant frequency. This generates a vibration of the piezoelectric component.
摘要翻译：公开了一种用于调谐压电元件的谐振频率的方法。压电元件包括在三个空间方向上延伸的换能器。谐振频率取决于空间方向中的至少一个和/或材料依赖弹性模量上的延伸。换能器包括具有至少两个第一电极和至少一个第二电极的分层结构，其设置在两个第一电极之间。在该方法中，DC电压被施加到至少两个第一电极和至少一个第二电极中的至少一个，使得谐振频率的变化是由于一个空间方向上的延伸的变化而导致的，并且弹性模量。施加具有激励频率的控制电压，激励频率基本上对应于修改的谐振频率。这产生压电元件的振动。

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