A high-temperature piezoelectric linear actuator operating in two orthogonal first bending modes

Chen, Jianguo; Chen, Zhijiang; Li, Xiaotian; Dong, Shuxiang

doi:10.1063/1.4790278

Cited by 22 publications

(18 citation statements)

References 22 publications

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“…These compounds are being investigated extensively as alternative to state-of-the-art Pb(Zr,Ti)O3 (PZT) for expanding the operation temperature of high sensitivity piezoelectric ceramics beyond 200 ºC, up to 400 ºC [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Point defect engineering of high temperature piezoelectric BiScO3–PbTiO3 for high power operation

Berganza

Pascual-González

Amorín

et al. 2016

Journal of the European Ceramic Society

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BiScO3-PbTiO3 is used as a model system of BiMO3-PbTiO3 perovskite solid solutions with enhanced electromechanical response at ferroelectric morphotropic phase boundaries, and high Curie temperature to demonstrate specific point defect engineering for high power operation. The objective is to obtain a range of piezoelectric ceramics comparable to hard Pb(Zr,Ti)O3 materials, optimized for the different applications. In this work, a comprehensive study of Mn substitution for Sc is provided. Care is taken to isolate the effects of the point defects from those of concomitant structural and microstructural changes that have been previously described after MnO2 addition.Results strongly suggest that Mn substitution results in the formation of (MnSc'-VOcomplexes that effectively clamp domain walls. This is the same mechanism responsible of hardening in Pb(Zr,Ti)O3. Indeed, Bi0.36Pb0.64Sc0.36-x MnxTi0.64O3 with x=0.02 is shown to be a high sensitivity piezoelectric with strongly reduced losses, suitable for high power operation between 200 and 400 ºC.

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Section: Introductionmentioning

confidence: 99%

Point defect engineering of high temperature piezoelectric BiScO3–PbTiO3 for high power operation

Berganza

Pascual-González

Amorín

et al. 2016

Journal of the European Ceramic Society

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“…A history of commercial success was achieved using circular traveling wave-based stators transmitting its energy to a rotor [6,7], with the capability of bidirectional movement. Standing-wave-based motors were also reported, with the requirement of legs to induce the movement of the rotor [8], as well as the proper mixing of two standing waves at the same frequency, with either a bending and a longitudinal mode [9] or two bending modes [10].…”

Section: Introductionmentioning

confidence: 99%

Motion of a Legged Bidirectional Miniature Piezoelectric Robot Based on Traveling Wave Generation

et al. 2020

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This article reports on the locomotion performance of a miniature robot that features 3D-printed rigid legs driven by linear traveling waves (TWs). The robot structure was a millimeter-sized rectangular glass plate with two piezoelectric patches attached, which allowed for traveling wave generation at a frequency between the resonant frequencies of two contiguous flexural modes. As a first goal, the location and size of the piezoelectric patches were calculated to maximize the structural displacement while preserving a standing wave ratio close to 1 (cancellation of wave reflections from the boundaries). The design guidelines were supported by an analytical 1D model of the structure and could be related to the second derivative of the modal shapes without the need to rely on more complex numerical simulations. Additionally, legs were bonded to the glass plate to facilitate the locomotion of the structure; these were fabricated using 3D stereolithography printing, with a range of lengths from 0.5 mm to 1.5 mm. The optimal location of the legs was deduced from the profile of the traveling wave envelope. As a result of integrating both the optimal patch length and the legs, the speed of the robot reached as high as 100 mm/s, equivalent to 5 body lengths per second (BL/s), at a voltage of 65 Vpp and a frequency of 168 kHz. The blocking force was also measured and results showed the expected increase with the mass loading. Furthermore, the robot could carry a load that was 40 times its weight, opening the potential for an autonomous version with power and circuits on board for communication, control, sensing, or other applications.

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“…The former mostly use a piezoelectric stator to excite a single vibration mode or two combined vibration modes to produce 1-DOF motion, and various types of 1-DOF USMs have been reported. [8][9][10][11][12][13][14] The latter normally use one piezoelectric stator containing multiple piezoelectric elements, or use multiple piezoelectric stators to excite two or more vibration modes to produce multi-DOF motion. 15 Nakamura et al proposed the first multi-DOF stick-type USM in 1998.…”

Section: Introductionmentioning

confidence: 99%

A two degrees-of-freedom piezoelectric single-crystal micromotor

Chen

Liu

et al. 2014

Journal of Applied Physics

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A two degrees-of-freedom (DOF) ultrasonic micromotor made of piezoelectric Pb(In 1/2 Nb 1/2 ) O 3 -Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 (PIN-PMN-PT) single crystal square-bar (dimensions 2 Â 2 Â 9 mm 3 ) was developed. The PIN-PMN-PT square-bar stator can generate standing wave elliptical motions in two orthogonal vertical planes by combining the first longitudinal and second bending vibration modes, enabling it to drive a slider in two orthogonal directions. The relatively large driving forces of 0.25 N and motion speed of 35 mm/s were obtained under a voltage of 80 V pp at its resonance frequency of 87.5 kHz. The proposed micromotor has potential for applications in micro robots, cell manipulators, and digital cameras as a two-DOF actuator. V C 2014 AIP Publishing LLC.

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A high-temperature piezoelectric linear actuator operating in two orthogonal first bending modes

Cited by 22 publications

References 22 publications

Point defect engineering of high temperature piezoelectric BiScO3–PbTiO3 for high power operation

Point defect engineering of high temperature piezoelectric BiScO3–PbTiO3 for high power operation

Motion of a Legged Bidirectional Miniature Piezoelectric Robot Based on Traveling Wave Generation

A two degrees-of-freedom piezoelectric single-crystal micromotor

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