Influence of Shear Vibration over Au-Au Electric Contact Phenomenon

Yu YONEZAWA  Noboru WAKATSUKI  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E86-C   No.6   pp.902-907
Publication Date: 2003/06/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Recent Development of Electro-Mechanical Devices (IS-EMD 2002))
Category: Contact Phenomena
Keyword: 
electric contact,  discharge phenomenon,  bridge phenomenon,  piezoelectric actuator,  shear vibration,  

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Summary: 
A LiNbO3 piezoelectric actuator controls the Au-Au contact gap. The control accuracy of the actuator is within the sub-micron range. Contact voltage, contact current, displacement of electrodes and driving voltage of the actuator were continuously and synchronously recorded by an A/D converter and send to a computer. The measured oscillograph data for 1500 contact operation were processed by the computer. Factors of discharge and bridge phenomena were derived at a contact operation. The delay time between displacement and driving signal of the actuator increased when one side of electric contact were vibrated. The resonance was seen in the actuator, and the dependency to the current and the amplitude was seen.