Analysis of a diamond-shaped mechanical amplifier for a piezo actuator

详细信息    查看全文

• 作者：Huixing Zhou and Brian Henson
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2007
• 出版时间：February, 2007
• 年：2007
• 卷：32
• 期：1-2
• 页码：1-7
• 全文大小：186 KB

文摘

Piezo actuators can produce high precision mechanical movement. The problem is that they can only produce very limited displacement. This paper firstly reviews the different mechanical amplifier mechanisms that increase the displacement of the piezo actuator. A mechanical analysis for one mechanism, the diamond shaped mechanical amplifier, is presented. The key design parameters of a prototype diamond amplifier for use in pneumatic valves are detailed. The results of testing the amplifier are given and compared with the theory. It is found that the displacement of the prototype amplifier does not deviate more than 7 % from the theoretical value.