Jin-liang Li

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The shear piezoelectric constant value for d<inf>15</inf> has a higher value compared with constant d<inf>31</inf> or d<inf>33</inf>. Also, the value of the shear electromechanical coupling coefficient k<inf>15</inf> is bigger than that of k<inf>31</inf> or k<inf>33</inf>. A design for an ultrasonic motor based on the shear coefficients has the potential(More)
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