低頻壓電致動器驅動裝置設計

Design of Low Frequency Driving Circuit for Piezo-actuator

蔡明蒲(Ming-Pu Tsai)

指導教授 ： 宋家驥

國立臺灣大學/工學院/工程科學及海洋工程學研究所/碩士(2004年)

https://doi.org/10.6342/NTU.2004.01605

摘要

在本文中，針對以雙壓電晶體型(Bimorph)致動器為振動源的輸送裝置作為驅動研究對象，透過對壓電材料基本等效電路的探討，藉以了解在達到能量轉換的關鍵點上，致動器給予訊號驅動源哪一些限制，造成必v消耗的箝制。
另外，偏壓的加入在理論上即形成驅動訊號的改變，那麼壓電致動器的工作點也應有所相對應的改變，而此一改變在壓電致動器的運作上，可以有效放寬壓電材料在電場大小的使用限制，因此本文也將透過偏壓的機制的加入，提供偏壓給壓電致動器所用。最終將製作出壓電致動器所需的驅動訊號，並搭配必v放大與升壓而成的驅動器來提供足夠的驅動能力給予壓電式輸送裝置。

關鍵字

等效模型 ； 直流偏壓 ； 壓電致動器

並列摘要

Feeder system whose vibration source from Bimorph actuator is diving in this thesis. The basic equivalent Model of piezoelectric material will be discussed to show the key point about energy change between electric and mechanical.
Avoid the deploying of piezoelectric material, electric field have been limited in one–third coercive field traditionally. DC bias can change the work point of piezoelectric material. This skill can increase the electric voltage applied to piezoelectric material and it is really helpful to drive feeder system.
The goal is to fabricate a driving circuit to provide enough driving ability for feeder system.

並列關鍵字

DC bias ； Piezo-actuator ； Mason model

參考文獻

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