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Compact piezoelectric stacked actuators for high power applications
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2000Small, hollow, multilayer actuators with a diameter of 3 mm were fabricated by the stacking method from piezoelectric hard lead zirconate titanate (PZT) ceramics. Langevin vibrators were also constructed with the hollow multilayer actuators. The performance capabilities of the actuator and Langevin vibrator samples were examined under high-power ...
K, Yao +4 more
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Analysis on coupled vibration of piezoelectric ceramic stack with two piezoelectric ceramic elements
The Journal of the Acoustical Society of America, 2019A longitudinally polarized piezoelectric ceramic stack with two piezoelectric ceramic elements is an important part of sandwich piezoelectric transducers. The three-dimensional coupled vibration of piezoelectric ceramic stack is analyzed. Since the longitudinal and radial dimensions of particular piezoelectric ceramic stacks are approximately equal ...
Xiangdi, Meng, Shuyu, Lin
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Simulation model of the piezoelectric stack actuator
Proceedings of the 13th International Carpathian Control Conference (ICCC), 2012Piezoactuators become a perspective component for micromechanics and active vibration control. The piezoactuator as a microdrive operates on the principle of the reverse piezoelectric effect. Mechanical properties of the piezoactuators are as follows: high frequency range of operation, small travel range and large applied force.
Jaroslav Los, Jaromir Zavadil, Jiri Tuma
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Actuators using piezoelectric stacks and displacement enhancers
SPIE Proceedings, 2015Actuators are used to drive all active mechanisms including machines, robots, and manipulators to name a few. The actuators are responsible for moving, manipulating, displacing, pushing and executing any action that is needed by the mechanism. There are many types and principles of actuation that are responsible for these movements ranging from ...
Yoseph Bar-Cohen +6 more
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Comparison of piezoelectric and electrostrictive actuator stacks
SPIE Proceedings, 1992Piezoelectrics have been around for decades as acoustic or sensing components. In the last few years, however, they have seen increasing use as means to provide motion and control in the micron realm, well below the resolution level of mechanical or electromechanical devices. Their high hysteresis (15 - 20%), however, was a problem in some systems, and
John Galvagni, Bharat S. Rawal
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Analytical solution of piezoelectric composite stack transducers
Journal of Intelligent Material Systems and Structures, 2013This article presents the dynamic analytical solution of piezoelectric composite stack transducers under external harmonic mechanical loads, which is based on the linear theory of piezoelasticity. The solution is obtained by using the displacement method.
Jianjun Wang, Zhifei Shi, Zhijun Han
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A novel linear motor with piezoelectric stacks
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, 2010A new type of linear motor based on non resonant vibration with piezoelectric stacks was investigated. The operation principle of the motor was studied basing on the output characteristic of the piezoelectric stack. The elliptical trajectory could be excited at driving top which was proved theoretically.
null Chen Xifu, null Huang Weiqing
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Ultrasonic Transducer with Stacked Porous Piezoelectric Ceramics
Japanese Journal of Applied Physics, 1993Stacked porons Pb(Zr, Ti)O3 (P-PZT) disks are applied to an ultrasonic transducer of 50 kHz to lower the resonance impedance in the thickness mode vibration. The stacked disk structure is composed of four adhered P-PZT disks. Each of them has a resonance frequency of 200 kHz in the thickness mode. The transducer with stacked P-PZT disks, evaluated
Koichi Mizumura +2 more
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Piezoelectric-stack pump for micro-reagents dispense
Proceedings of 2011 6th International Forum on Strategic Technology, 2011Microscale, fast, precise micro-reagents dispense is the key technology indispensable in life science, chemical experiments and other fields. A piezoelectric-stack pump prototype was developed to implement high-precision, microscale and automated reagents dispense. The structure, working process and assembly process of the piezoelectric-stack pump were
Xiang-bing Kong +4 more
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New energy harvester with embedded piezoelectric stacks
Composites Part B: Engineering, 2019Abstract Mechanical energy harvesters are designed to capture the ambient energy and transform it into usable electrical energy. Power harvesting from mechanical vibrations is the fundamental step toward providing self-powered smart systems in the developing wireless and portable electronic devices marketplace. This paper presents a new design and an
Alireza Keshmiri, Xiaowei Deng, Nan Wu
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