Microstepping control of ultrasonic stepping motors

Chau, K. T.; Shi, Bin; Hu, Minqiang; Long, Jing; Fan, Ying

doi:10.1109/tia.2005.863898

Cited by 7 publications

(2 citation statements)

References 11 publications

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“…Therefore, it is necessary to adopt a new type of motor to improve the situation. As a prime mover, a rotating traveling wave ultrasonic motor (USM) offers low velocity, friction drive, self-locking, high-power density, high-position resolution, high positioning stiffness, and excellent electromagnetic compatibility [15,[21][22][23][24][25][26][27][28]. These unique characteristics have always attracted attention in the fields of aviation, medical care, robots, and precision driving [29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Design of Optoelectronic Tracking Platform Driven by Ultrasonic Motor with a Novel Limiter

Liang,

Pan,

Chen

2023

Micromachines

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A high-performance servo control system is the basis for realizing high-precision photoelectric tracking. With high position resolution and power-off self-locking, ultrasonic motors have a wide range of applications for high-precision positioning control. An optoelectronic tracking platform driven by two ultrasonic motors is proposed in this study. The shaft structure of the tracking platform is designed and modeled. The shaft structure is simplified, and a dynamic model is established to analyze the motion characteristics. The parameters of the limit mechanism are optimized based on the analysis. The shaft structure is built to verify the response characteristics of the tracking platform at different velocities. The results show that the proposed design can fully utilize the self-locking of ultrasonic motors for rapid automatic alignment of the axis system. The maximum response time is less than 55 ms. When the operating velocity is less than 70°/s, the positioning error is less than 0.055°, and the lower the speed, the smaller the positioning error.

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Section: Introductionmentioning

confidence: 99%

Design of Optoelectronic Tracking Platform Driven by Ultrasonic Motor with a Novel Limiter

Liang,

Pan,

Chen

2023

Micromachines

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show abstract

“…With the development in the field of nanofabrication, the precision table technology is imposing increasingly higher requirements for the stroke, speed, and accuracy of precision positioning systems, with the control accuracy required to be in the micrometer or even nanometer range [1][2][3]. With their advantages of simple structure, fast response, and high positioning accuracy, ultrasonic motors meet the requirements of precision positioning [4][5][6] and have a wide range of applications in precision instruments, aerospace, robotics, and biomedicine [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Research on Fast and Precise Positioning Strategy of an Ultrasonic Motor Based on the Ultrasonic Friction Reduction Theory

et al. 2022

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To address the problems of the large positioning error and long positioning time of the traditional positioning strategy, namely, the two-phase simultaneous power-off method (TPSPM), a new positioning strategy, called the first single-phase then two-phase power-off method (FSPTTPPM), based on the ultrasonic friction reduction theory, has been proposed in this work. This method realizes zero sliding displacement between the friction material and the stator during the torsional oscillation of the shaft by controlling the driving circle frequency and the duration of the single-phase power-off period, which reduces the deviation of the displacement reservation value. In order to verify the correctness of the driving mechanism, a test platform has been built, and two positioning strategies have been used for experimental verification. The following experimental results have been obtained: compared to TPSPM, FSPTTPPM has the advantages of higher positioning accuracy and short positioning time. In terms of the positioning accuracy, the relative errors of the displacement reservation values of FSPTTPPM and TPSPM vary with the initial angular velocity (0.24 to 1.18 rad/s) in the range of −0.4 to 0.1 and −0.8 to 0.8, respectively. In addition, the relative error of the displacement reservation value is closer to zero than that of TPSPM at the same initial angular velocity. In terms of the positioning time, when the initial angular velocity is greater than 0.7 rad/s, the positioning time of the FSPTTPPM is approximately 10 ms smaller than that of the TPSPM.

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Research on ultra-low speed driving method of traveling wave ultrasonic motor for CMG

et al. 2020

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Microstepping control of ultrasonic stepping motors

Cited by 7 publications

References 11 publications

Design of Optoelectronic Tracking Platform Driven by Ultrasonic Motor with a Novel Limiter

Design of Optoelectronic Tracking Platform Driven by Ultrasonic Motor with a Novel Limiter

Research on Fast and Precise Positioning Strategy of an Ultrasonic Motor Based on the Ultrasonic Friction Reduction Theory

Research on ultra-low speed driving method of traveling wave ultrasonic motor for CMG

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