Title: Double-vibrating mode driving piezoelectric ceramic ultrasound wave electric machine small wave differential controlling method
Application Number: 200610040476 Application Date: 2006.05.17
Publication Number: 1848654 Publication Date: 2006.10.18
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02N2/00,H02N2/06,H02N2/14
Applicant(s) Name: Hefei Polytechnic Univ. Address: 230009
Inventor(s) Name: Xu Congyu, Yu Xiaofen
Attorney & Agent: he meisheng
Abstract:
     A method for controlling wavelet differential motion of piezoelectric ceramic ultrasonic motor driven by double vibration mode includes providing wavelet voltage with frequency of 39.6 KH2 in N number of periods, making peak value of at least one period be greater then dead zone, using said voltage as a driving element and controlling sliding block speed by changing its output rate, dividing said voltage to be two paths and adding them on two sets of electrodes on said motor in differential way, controlling voltage D-value of said electrodes so as to control amplitude of vibration mode for changing oval motion trail of driving head.
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