Linear ultrasonic motor with wheel-shaped stator

Shi, Yunlai; Zhao, Chunsheng; Huang, Weiqing

doi:10.1016/j.sna.2010.05.009

Cited by 55 publications

(16 citation statements)

References 8 publications

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“…Thus, numerous designs of USMs have been developed such as travelling wave motors, wobbling mode motors, shear mode disk rotary motor, and hybrid mode linear motors [367,513,515]. All these piezoelectric ultrasonic motors operating in friction drive mechanism at resonance exhibit quick response, high resolution in positioning, low profile, and high power density [513,516,517].…”

Section: Figure Of Merits (Fom) Of Piezoelectric Materials For Vmentioning

confidence: 99%

Advantages and challenges of relaxor-PbTiO3 ferroelectric crystals for electroacoustic transducers – A review

Zhang

Jiang

et al. 2015

Progress in Materials Science

671

339

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Relaxor-PbTiO3 (PT) based ferroelectric crystals with the perovskite structure have been investigated over the last few decades due to their ultrahigh piezoelectric coefficients (d33 > 1500 pC/N) and electromechanical coupling factors (k33 > 90%), far outperforming state-of-the-art ferroelectric polycrystalline Pb(Zr,Ti)O3 ceramics, and are at the forefront of advanced electroacoustic applications. In this review, the performance merits of relaxor-PT crystals in various electroacoustic devices are presented from a piezoelectric material viewpoint. Opportunities come from not only the ultrahigh properties, specifically coupling and piezoelectric coefficients, but through novel vibration modes and crystallographic/domain engineering. Figure of merits (FOMs) of crystals with various compositions and phases were established for various applications, including medical ultrasonic transducers, underwater transducers, acoustic sensors and tweezers. For each device application, recent developments in relaxor-PT ferroelectric crystals were surveyed and compared with state-of-the-art polycrystalline piezoelectrics, with an emphasis on their strong anisotropic features and crystallographic uniqueness, including engineered domain - property relationships. This review starts with an introduction on electroacoustic transducers and the history of piezoelectric materials. The development of the high performance relaxor-PT single crystals, with a focus on their uniqueness in transducer applications, is then discussed. In the third part, various FOMs of piezoelectric materials for a wide range of ultrasound applications, including diagnostic ultrasound, therapeutic ultrasound, underwater acoustic and passive sensors, tactile sensors and acoustic tweezers, are evaluated to provide a thorough understanding of the materials’ behavior under operational conditions. Structure-property-performance relationships are then established. Finally, the impacts and challenges of relaxor-PT crystals are summarized to guide on-going and future research in the development of relaxor-PT crystals for the next generation electroacoustic transducers.

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Section: Figure Of Merits (Fom) Of Piezoelectric Materials For Vmentioning

confidence: 99%

Advantages and challenges of relaxor-PbTiO3 ferroelectric crystals for electroacoustic transducers – A review

Zhang

Jiang

et al. 2015

Progress in Materials Science

671

339

View full text Add to dashboard Cite

show abstract

“…Furthermore, as two orthogonal vibrations with the same resonance frequency and a temporal phase shift of 90°can also form elliptical movement, combination of vibrations, such as longitudinal and bending vibrations [11][12][13][14], longitudinal and torsional vibrations [15][16][17], two orthogonal longitudinal vibrations [18][19][20][21][22][23][24], and two orthogonal bending vibrations [25][26][27][28][29], can be utilized for constructing piezoelectric motors. Recently, a new principle for linear driving was proposed by Lu et al, in which driving principle using ultrasonic vibration induced friction reduction was proposed and investigated; and the two exciting frequencies of the driving and friction reduction voltages need not to be the same [30].…”

Section: Introductionmentioning

confidence: 99%

A T-shape linear piezoelectric motor with single foot

et al. 2015

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“…Piezoelectric actuators of compound vibration mode have higher performance than single vibration mode. At present, piezoelectric actuators have been studied by researchers, and they have been applied into many fields of spaceflight, automation and so on [6] [7] [8] [9]. We study the compound vibration mode piezoelectric motor working in deep-sea environment.…”

Section: Introductionmentioning

confidence: 99%

Development of Deep-Sea Resonant Sandwich Linear Ultrasonic Motor

He¹,

Shi²,

Chen³

2018

JAMP

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A deep-sea resonant sandwich linear ultrasonic motor is proposed and designed. We determine the parameter of its structure by finite-element analysis. The piezoelectric actuator adopts compound vibration mode of fifth order bending vibration and second order longitudinal. The mode degeneracy of that is completed. We manufacture the prototype to measure the performance of it. We measure its vibration mode and resonant frequency. The velocity of prototype can reach 264.5 mm/s while the water pressure is 8 MPa and the voltage signal with frequency of 30.30 kHz and voltage amplitude of 150 V.

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Linear ultrasonic motor with wheel-shaped stator

Cited by 55 publications

References 8 publications

Advantages and challenges of relaxor-PbTiO3 ferroelectric crystals for electroacoustic transducers – A review

Advantages and challenges of relaxor-PbTiO3 ferroelectric crystals for electroacoustic transducers – A review

A T-shape linear piezoelectric motor with single foot

Development of Deep-Sea Resonant Sandwich Linear Ultrasonic Motor

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