发明名称 |
System und Verfahren zum Vorspannen von piezoelektrischen Aktuatoren |
摘要 |
<p>A system for preloading piezoelectric actuators includes a fixture, a preloading mechanism configured to apply a mechanical force to a piezoelectric element supported by the fixture, and a sensor configured to sense an electrical property induced by the mechanical force in an electrical circuit having the piezoelectric element therein. A control device is coupled with the sensor and configured to generate a signal based on the sensed electrical property. A method of setting or testing preload includes applying a mechanical force to a piezoelectric element, and correlating an electrical property induced by the mechanical force with a magnitude of the mechanical force. Closed loop control allows preload to be set highly accurately.</p> |
申请公布号 |
DE112008003151(T5) |
申请公布日期 |
2010.10.14 |
申请号 |
DE20081103151T |
申请日期 |
2008.11.25 |
申请人 |
CATERPILLAR INC. |
发明人 |
VENKATARAGHAVAN, JAYARAMAN;LEWIS, STEPHEN R.;LOVE, WILLIAM;XU, ZHENLONG |
分类号 |
H01L41/08;F02M51/06;H01L41/22 |
主分类号 |
H01L41/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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