Thin-film piezoelectric bimorph actuators with increased thickness using double Pb[Zr,Ti]O3layers

2015 ◽  
Vol 25 (5) ◽  
pp. 055001 ◽  
Author(s):  
Jun-Ichi Inoue ◽  
Kensuke Kanda ◽  
Takayuki Fujita ◽  
Kazusuke Maenaka
Keyword(s):  
Thin Film ◽  
Piezoelectric Bimorph ◽  
Bimorph Actuators

Electromechanical Characteristics of Exponentially Tapered Piezoelectric Bimorph Actuators

2010 ◽  
Vol 49 (7) ◽  
pp. 07HD08 ◽  
Author(s):  
Jungsoon Kim ◽  
Moojoon Kim ◽  
Huiuk Lee ◽  
Kanglyel Ha
Keyword(s):  
Piezoelectric Bimorph ◽  
Bimorph Actuators

Design of an Innovative Piezoelectric Jacquard Selection Mechanism

2013 ◽  
Vol 459 ◽  
pp. 402-406
Author(s):  
Fu Jun Liu ◽  
Yan Hong Yuan
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Driving Force ◽  
Operating Frequency ◽  
Low Power Consumption ◽  
Small Displacement ◽  
Selection Mechanism ◽  
Piezoelectric Bimorph ◽  
Bimorph Actuators ◽  
Auxiliary Mechanism

Piezoelectric bimorph has the advantages of small size, low power consumption and high operating frequency. Meanwhile, it has the short-comings of small displacement of deformation and weak driving force applying to the load. Piezoelectric bimorph actuators can replace the previous electromagnetic needle selector successfully by means of displacement magnifying mechanism and other auxiliary mechanism. An innovative piezoelectric jacquard selection mechanism has been designed in the paper.

Design and Fabrication of Low-Voltage Twisting-Type Thermal Actuators for Micromirrors

2009 ◽  
Author(s):  
Dong Hyun Kim ◽  
Seungho Park ◽  
Ohmyoung Kwon ◽  
Young Ki Choi ◽  
Joon Sik Lee
Keyword(s):  
Thin Film ◽  
Analytical Model ◽  
Low Voltage ◽  
Theoretical Models ◽  
Thermal Actuators ◽  
Gold Thin Film ◽  
Actuation System ◽  
Commercial Code ◽  
Bimorph Actuators ◽  
Mems Process

A twisting-type micromirror that can be driven by two thermal bimorph actuators bending in opposite directions is designed from electro-thermo-mechanical theories and fabricated through a simple MEMS process. Each actuator consists of SiO2 and gold thin-film layers. A simplified analytical model has been built to optimize the performance of micromirrors. Operation of the actuation system agrees well with predictions from theoretical models and simulations using a commercial code.

scholarly journals Discrete Sliding Mode Control Design for Piezoelectric Actuator

2019 ◽  
Vol 3 (3) ◽  
pp. 492
Author(s):  
Van Huynh-Van ◽  
Phong Tran-Thanh
Keyword(s):  
Piezoelectric Actuator ◽  
Pid Controller ◽  
Sliding Mode ◽  
Sliding Mode Controller ◽  
Piezoelectric Bimorph ◽  
Creative Commons ◽  
Bimorph Actuators ◽  
Perturbation Estimation ◽  
Discrete Sliding Mode Control ◽  
Open Access Article

Piezoelectric bimorph actuators have been employed in several applications. In this paper, the piezoelectric actuator is discretized and its hysteresis function is studied, then a digital sliding mode controller is designed. Furthermore, a perturbation estimation technique is applied and an observer is no longer needed. In addition, simulations are performed also using the traditional PID controller in order to validate the proposed controller scheme performance.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited. 

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