HUANG Wei-qing,YANG Cheng-long,SHEN Zhao-chen,et al.Design of V-shaped linear ultrasonic motor driven with low-voltage[J].Optics and Precision Engineering,2021,29(01):91-99.
HUANG Wei-qing,YANG Cheng-long,SHEN Zhao-chen,et al.Design of V-shaped linear ultrasonic motor driven with low-voltage[J].Optics and Precision Engineering,2021,29(01):91-99. DOI: 10.37188/OPE.20212901.0091.
Design of V-shaped linear ultrasonic motor driven with low-voltage
To solve the problem of the high driving voltage of traditional V-shaped linear ultrasonic motors, which results in a complex driving circuit and the disadvantage of structure miniaturization when matching with transformer driving, a low voltage driving V-shaped linear ultrasonic motor based on laminated piezoelectric ceramics was proposed. Based on the analysis of the working principle of the V-shaped linear ultrasonic motor, a V-shaped oscillator with laminated piezoelectric ceramics and a clamping device were designed. Finally, a prototype of the motor was fabricated, and the impedance and performance were measured. The experimental results show that the operating frequency of the motor is between 36 and 38 kHz while under a driving voltage of 50 Vpp and 37 kHz, the maximum output force of the motor reaches 25.8 N, and the maximum no-load velocity reaches 1.221 m/s.
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