A piezoelectric bimorph micro-gripper with micro-force sensing
A piezoelectric bimorph micro-gripper with micro-force sensing
复制标题
具有微力传感功能的压电双压电晶片微夹具
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
Xiadong Lv
中科院分区：
文献类型：
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作者：
Xinhan Huang;Jianhua Cai;Min Wang;Xiadong Lv
提出了一种具有微力传感功能的压电双晶片微夹持器。微夹持器采用双悬臂梁结构，由两片压电双晶片驱动。在压电双晶片的基座两侧粘贴两个应变片，通过传感双晶片自由端的变形，分别得到位移-电压关系和力-应变关系。因此，夹持器具有检测微小力的能力，当它被抓持微小零件。实验结果表明，该夹持器工作可靠、安全。它能满足微装配的要求。
A new piezoelectric bimorph micro-gripper with micro-force sensing is presented in the paper. The micro-gripper is based on the dual cantilevers structure and is driven by two piezoelectric bimorphs. Sticking two strain gauges on both sides of the base of the piezoelectric bimorph to sense free end transmutation of the bimorph, we can get displacement-voltage relationship and force-strain relationship respectively. As a result the gripper has the ability to detect micro-force when it is gripping micro-parts. The experiment results show that the gripper works reliably and safely. It is satisfied with the tasks of micro assembly.