A teeth-discretized electromechanical model of a traveling-wave ultrasonic motor

Chen, Ning; Ding, Fan

doi:10.5194/ms-11-257-2020

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…Commonly, the mechanical output quality can be tested using laser microdisplacement and force sensors [28]. The currents and voltages of ultrasonic transducers can be measured by Hall sensors and voltage transformers, respectively [29]. However, the high frequency and large power electrical parameters are difficult for dynamic detection and tracking, and an oscilloscope can play a positive role in direct measurement [30].…”

Section: Introductionmentioning

confidence: 99%

Measurement insights and error analysis of electronic parameters for ultrasonic transducers

Zhou,

Fan,

Tang

et al. 2024

Meas. Sci. Technol.

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Piezoelectric ultrasonic transducers with the function of energy conversation, as well as their numerous advantages, such as high-power density, quick response, flexible design, and service reliability, are involved in wide applications of industrial processing, precision driving, smart sensing, and medical services. The electromechanical equivalent circuit and Kirchhoff’s law indicate that mechatronics parameters are essential for performance evaluation, reliability analysis, and fault diagnosis of ultrasonic transducers. Importantly, the ultrasonic transducer is a time variant system, data of one single parameter collected from a certain test can’t match with the data of another single parameter acquired from a different test. So, a synchronous and precise online measurement of electronic parameters is encouraged for performance evaluation and optimization design of ultrasonic transducers. With the combination of virtual instrument technology, an asynchronous measurement system of electrical excitation parameters for the ultrasonic transducers of linear driving motors was established in this study. Furthermore, the systematic measurement methods and error theory, including the calculation methods and measuring circuits of electric signals, were illustrated. Experimental results proved that the proposed system and methods for measuring the input electronic power of ultrasonic transducer (e.g., effective value method for voltage and current, energy moment method for frequency, and spectrum analysis method for phase difference) are highly precise, quick responsive, robust, and reliable for ultrasonic transducers. The findings of this study provide valuable references and suggestions for efficient, accurate, and online performance evaluation of ultrasonic transducers, particularly for piezoelectric transducers utilizing ultrasonic high-voltage exciting signals.

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Section: Introductionmentioning

confidence: 99%

Measurement insights and error analysis of electronic parameters for ultrasonic transducers

Zhou,

Fan,

Tang

et al. 2024

Meas. Sci. Technol.

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show abstract

“…Piezoelectric motors have a variety of structures, but the mainstream of the academic circle divides them into inchworm piezoelectric motors [10][11][12], ultrasonic piezoelectric motors [13,14], and inertial impact piezoelectric motors [15][16][17][18][19]. The inertia impact piezoelectric motor uses the inertia impact of the stator vibration to generate micro displacement to realize the linear motion or rotation of the mover [20,21].…”

Section: Introductionmentioning

confidence: 99%

Research on variable stiffness asymmetrical resonant linear piezoelectric actuator based on multi-modal drive

He,

Yue,

Dou

et al. 2023

Smart Mater. Struct.

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In this paper, a linear piezoelectric motor with variable stiffness and asymmetric resonance is proposed, which is driven by a single harmonic signal. Working in the resonant state improve the output performance of the motor. Motor control is relatively simple and can realize reverse movement under the driving of second-order single harmonic signal. At the same time, the new motor can obtain different operating speed and step distance by changing the clamping position in front and back to meet the requirements of different loads and different working conditions and has strong applicability. By experiment, the first-order optimal operating frequency of the motor prototype at three different stiffness adjustment positions is 88 Hz, 90 Hz and 92 Hz respectively. Under the excitation of 240 Vp–p first-order resonance signal, the corresponding output speed of the motor prototype is 16.116 mm s−1, 20.457 mm s−1 and 25.015 mm s−1 respectively, and the corresponding displacement resolution is 0.18 mm, 0.22 mm and 0.27 mm respectively. When the stiffness adjustment positions is 2 mm, the maximum load of the motor prototype reaches 450 g. The second-order optimal operating frequency at the stiffness adjustment positions 1 mm is 601 Hz. Under the excitation of a 240 Vp–p second-order resonant signal, the reverse output speed of the motor prototype is 13.126 mm s−1, and the corresponding displacement resolution is 0.02 mm.

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Contact modeling and performance evaluation of ring type traveling wave ultrasonic motors considering stator teeth

Jiang

et al. 2021

Ultrasonics

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A teeth-discretized electromechanical model of a traveling-wave ultrasonic motor

Cited by 7 publications

References 13 publications

Measurement insights and error analysis of electronic parameters for ultrasonic transducers

Measurement insights and error analysis of electronic parameters for ultrasonic transducers

Research on variable stiffness asymmetrical resonant linear piezoelectric actuator based on multi-modal drive

Contact modeling and performance evaluation of ring type traveling wave ultrasonic motors considering stator teeth

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