Review of 8-mm Piezoelectric Motor Connection Methods.

Barben, C. L. ; Yerganian, S. S.

Technical Information Center Oak Ridge Tennessee

关键词: Piezoelectricity;    Evaluation;    Conductive epoxy;    Electrical connection methods;    Ring motors;   

RP-ID  :  DE2001756315

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

This report presents the design and evaluation of electrical connection methods for driving an 8-millimeter traveling wave piezoelectric ring motor. This proved to be a difficult problem because many of the electrical leads and the bonds attaching them to the PZT ceramic were subject to breaking due to resonant vibrations as the motor was run. Methods investigated to provide electrical leads to the PZT ceramic ring included discrete wires, custom-designed cables, and a fixed ceramic ring. Bonds to the ceramic ring were made using three conductive adhesives, thermosonically bonded gold jumper wires, and soldering. A scanning laser Doppler vibrometer was used to evaluate the resonance in the electrical leads. Finite element analysis was used to help guide the design of a new cable to eliminate the resonance problems.