ACTUATOR 2016 Manuscript B3.2


Author: Hubert Borgmann
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Pages: 4
Language: English
Publication date: 01/06/2016
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Manuscript B3.2 published in Conference Proceedings ACTUATOR 2016
An Ultrasonic Motor Using Side-Push of Centre-Attached Eyelets on an Octagonal Piezoelectric Plate

B. Koc, Physik Instrumente (PI) GmbH & Co. KG, Karlsruhe, Germany

Abstract:
An octagonal piezoelectric plate, on which two alumina eyelets are attached symmetrically at the center of the two main surfaces, was used as the vibrator of a piezoelectric resonance motor. The electrodes that are dividing the two main surfaces into two regions are arranged at 90 degrees to each other. Two alumina rods are attached at both ends of a U-shaped slider, which is used as the sliding element. A hula-hoop motion is generated when two signals (one driving the top and the other driving the bottom electrodes) with 90 degrees out of phase drive the vibrator. The hula-hoop motion is transferred to the slider through frictional coupling as the side surfaces of the both eyelets are contacted tangentially to the alumina rods on the U-shaped slider. When the test motor was driven by 160 Vp-p square waveform signal at its first in plane mode that is about 68 kHz, it can supply a force of 20 N. Independent driving method also improves speed-control voltage nonlinearity significantly at low speed region.
El vendedor asume toda la responsabilidad de esta entrada.
Hubert Borgmann, MESSE BREMEN,
Project Manager ACTUATOR, International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, and Editor of the ACTUATOR Conference Proceedings (www.actuator.de)
Project Manager ITHEC, International Conference and Exhibition on Thermoplastic Composites, Bremen, Germany, and Editor of the ITHEC Conference Proceedings (www.ithec.de)

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