Title :
A study on the metal tube type ultrasonic motor (MTTUSM)
Author_Institution :
Jou Dept. of Mech. Eng., Cheng Shiu Univ., Kaohsiung, Taiwan
Abstract :
The main motivation of this study hopes to understand the characteristic of the metal tube type ultrasonic motor (MTTUSM) through simple components, different driving or operation ways, its characteristic includes the rotational speed, driving phase angle and the relation of operation time and temperature rise. And hopes it can be applied to drive the small-scale optics lens mould or precision fixed position system. According to the experimental results, the maximum rotational speed is 2,075 rpm under conditions of 140 Vp-p driving voltage, 62 kHz resonance frequency, 60deg phase angle and 0.5 mm thickness of piezoelectric ceramic slice. In addition, the speed that rising temperature is in direct proportion to the thickness of the piezoelectric ceramic and driving voltage. The temperature rises to 66.7degC from 20degC under conditions of 140 Vp-p driving voltage, 62 kHz, 90deg driving phase angle and piezoelectric ceramic of 12 mm*2 mm*0.5 mm size. At last, the MTTUSM is applied to push the optics lens, finds its biggest thrust is 420 mN under conditions of 140 Vp-p driving voltage, screw of M2 size and piezoelectric ceramic of 12 mm*2 mm*0.4 mm size.
Keywords :
piezoceramics; ultrasonic motors; driving phase angle; frequency 62 kHz; metal tube type ultrasonic motor; operation time; piezoelectric ceramic slice; precision fixed position system; rotational speed; size 0.5 mm; small-scale optics lens mould; temperature 20 C; temperature 66.7 C; temperature rise; voltage 140 V; Ceramics; Electrodes; Lenses; Optical films; Resonance; Resonant frequency; Rotors; Temperature; Voltage; Wheels; Driving Phase Angle; Driving Voltage; Metal Tube Type Ultrasonic Motor (MTTUSM); Optics Lens Mould; Rotational Speed;
Conference_Titel :
Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International
Conference_Location :
Besancon
Print_ISBN :
978-1-4244-3511-1
Electronic_ISBN :
1075-6787
DOI :
10.1109/FREQ.2009.5168254