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Specialty: Physics
Source: Sensors and Actuators A: Physical
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Total 43 results found since Jan 2013.
Hysteresis compensation-based robust output feedback control for long-stroke piezoelectric actuators at high frequency
Publication date: Available online 7 January 2021Source: Sensors and Actuators A: PhysicalAuthor(s): Mohammad Salah, Ashraf Saleem
Source: Sensors and Actuators A: Physical - January 8, 2021 Category: Physics Source Type: research
A parasitic type piezoelectric actuator with the asymmetrical trapezoid flexure mechanism
This study shows a meaningful idea of the utilization of the asymmetrical trapezoid flexure mechanism for the design of novel piezoelectric actuators.Graphical Abstract
Source: Sensors and Actuators A: Physical - February 19, 2020 Category: Physics Source Type: research
A novel XYZ micro/nano positioner with an amplifier based on L-shape levers and half-bridge structure
Publication date: Available online 4 December 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Yanling Tian, Yue Ma, Fujun Wang, Kangkang Lu, Dawei ZhangAbstractThis paper presents the design, modeling, and experimental validation of a novel XYZ micro/nano positioner driven by piezoelectric actuator (PEA). To achieve a large motion stroke, compact structure and good decoupling performance, a novel displacement amplifier including L-shape levers and half-bridge (LSLHB) is proposed. By utilizing a concave input mechanism for location restriction between PEA and flexible mechanism, the motion coupling caused by the inc...
Source: Sensors and Actuators A: Physical - December 5, 2019 Category: Physics Source Type: research
Design and experimental performance of an inertial giant magnetostrictive linear actuator
Publication date: Available online 29 November 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Jingtao Zhou, Zhongbo He, Zhiyong Shi, Jinlong Song, Qingzhu LiAbstractIn order to meet the requirements of large stroke and high precision linear displacement, an inertial impact type giant magnetostrictive linear actuator was designed according to the principle of the inchworm motion. The stepwise cumulative displacement motion can be realized by applying a sawtooth wave signal to the excitation coil. The superimposed flexible hinge effectively improves the force of the system. The equivalent stiffness is calculated by ...
Source: Sensors and Actuators A: Physical - December 1, 2019 Category: Physics Source Type: research
Design of an H-shaped linear piezoelectric motor for safety and arming device
Publication date: Available online 22 October 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Dong Sun, Yu-juan Tang, Jiong Wang, Xin-jie WangAbstractIn this contribution, an H-shaped piezoelectric motor based safety and arming device that is driven by the hybrid of symmetrical first longitudinal mode and second bending mode is proposed, designed and experimental investigated. The proposed system operates based on the concept of self-moving and show potential infield of fuse system with different calibers. The actuating mechanism is that the four driving feet contact with the guides alternately and push the motor t...
Source: Sensors and Actuators A: Physical - October 23, 2019 Category: Physics Source Type: research
Enhancing out-of-plane stroke in piezoelectrically driven micro-lens actuator with residual stress control
Publication date: Available online 16 October 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Ssu-Han Chen, Aron Michael, Chee Yee KwokAbstractThis paper presents the fabrication and characterization of a high performance piezoelectrically driven micro-lens actuator. The fabrication method involves controlling the residual stresses in the structure to predefine the initial deflection of the actuator, resulting in a larger actuation stroke. The residual stress control exploits the unique properties of ultra-high vacuum e-beam evaporated film to form thick tensile polysilicon as the actuator structural layer. This is...
Source: Sensors and Actuators A: Physical - October 17, 2019 Category: Physics Source Type: research
A Review on MEMS based Micro Displacement Amplification Mechanisms
Publication date: Available online 13 October 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Sohail Iqbal, Afzaal MalikAbstractThis paper provides a comprehensive review on the design and development of micro displacement amplification mechanisms. Micro displacement amplification mechanisms are gaining importance in MEMS applications where motion precision, reliability, accuracy, and compactness are needed. These displacement amplification mechanisms improve the sensitivity of micro-sensors and voltage stroke ratio of micro actuators. There advantages have opened doors for new and improved micro devices with unpre...
Source: Sensors and Actuators A: Physical - October 14, 2019 Category: Physics Source Type: research
Actively controlling the contact force of a stick-slip piezoelectric linear actuator by a composite flexible hinge
Publication date: Available online 11 September 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Feng Qin, Liya Tian, Hu Huang, Jiru Wang, Tianwei Liang, Xinyu Zu, Hongwei ZhaoAbstractStick-slip piezoelectric actuators have been widely employed in those fields where both large working stroke and high positioning accuracy are required. However, the problems of backward motion and relatively low load capability limit their applications, and these two problems are usually contradictory. Attempted to solve these two problems at the same time, in this study, a composite flexible hinge was designed to actively control the...
Source: Sensors and Actuators A: Physical - September 13, 2019 Category: Physics Source Type: research
Self-support phenomenon and formation characteristics of dual synthetic jet
Publication date: Available online 6 September 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Zhiyong Liu, Zhenbing Luo, Qiang Liu, Xiong Deng, Wenqiang PengAbstractA formation criterion of dual synthetic jet (DSJ) is proposed. A DSJ actuator, featured by two cavities, one oscillatory diaphragm, and two exits is a real zero-net mass-flux actuator and has the superiority of higher energy utilization efficiency. However, self-support phenomenon which is unique to DSJ may result in weak jets or even no jets. Two-dimensional numerical simulations have been conducted to investigate the formation characteristics of DSJ....
Source: Sensors and Actuators A: Physical - September 7, 2019 Category: Physics Source Type: research
An in-plane, large-stroke, multipole electromagnetic microactuator realized by guideways stacking mechanism
Publication date: Available online 17 August 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Dong Han, Tadahiko Shinshi, Noriei Azuma, Shogo KadotaAbstractIn the application of cell phone cameras, it is essential to design optical image stabilizers with tiny size, in-plane motion and large stroke. Previously, small sized voice-coil actuators utilizing assembled magnets have been developed to achieve displacements up to 500 µm. Here, we propose a novel MEMS electromagnetic actuator employing a multipole permanent magnet with a finely pitched chessboard pattern and stacked multilayer Si-based guideways, enabling u...
Source: Sensors and Actuators A: Physical - August 18, 2019 Category: Physics Source Type: research
Double closed-loop control of a trans-scale precision positioning stage based on the inertial stick–slip driving
Publication date: Available online 8 August 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Bowen Zhong, Ziqi Jin, Jie Zhu, Zhenhua Wang, Lining SunAbstractThe piezoelectric-actuated inertial stick-slip device (PAISSD) has been applied extensively. However, it is difficult for the PAISSD to achieve nanometer positioning under large stroke. In addition, the speed of the PAISSD is unstable because of the inconsistent surface roughness and different abrasion. Toward solving these problems, this paper presents a method of double closed-loop control with the speed and the position. First, the position closed-loop method...
Source: Sensors and Actuators A: Physical - August 10, 2019 Category: Physics Source Type: research
A Novel Compression-Based Compliant Orthogonal Displacement Amplification Mechanism for the Typical Actuators Used in Micro-Grasping
Publication date: Available online 24 July 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Weilin Chen, Qinghua Lu, Xianmin Zhang, Baozhi He, Yunzhi Zhang, Qinghua ZhangAbstractTransforming movement orthogonally and enlarging grasping stroke simultaneously is a key issue in micro-grasping. In this paper, a novel compression-based compliant orthogonal single-stage displacement amplification mechanism (DAM) is proposed, which can not only realize orthogonal movement transformation and displacement amplification without requiring bidirectional symmetric input forces/displacements, but also obtain increasing displaceme...
Source: Sensors and Actuators A: Physical - July 30, 2019 Category: Physics Source Type: research
A Sandwich Piezoelectric Actuator with Long Stroke and Nanometer Resolution by the Hybrid of Two Actuation Modes
Publication date: Available online 8 July 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Jie Deng, Weishan Chen, Kai Li, Liang Wang, Yingxiang LiuAbstractA piezoelectric actuator operating at direct actuation mode and inertial actuation mode was proposed for linear driving with long stroke, nanometer resolution and high scan rate. Different from the previous piezoelectric actuators constructed with stacked flexure structures, the proposed actuator used a sandwich structure with high resonance frequency. The operating principle was discussed. The structure was designed by the assistance of theoretical analysis and ...
Source: Sensors and Actuators A: Physical - July 9, 2019 Category: Physics Source Type: research
Transformer Position Sensor for a Pneumatic Cylinder
Publication date: Available online 11 May 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Pavel Ripka, Mehran Mirzaei, Andrey Chirtsov, Jan VyhnanekAbstractA novel transformer-based sensor for a pneumatic cylinder enables measurements of the piston position to be made through a thick conductive cylinder. Unlike existing industrial solutions, which are mainly based on a moving magnet, our sensors do not require modifications to the parts inside the cylinder.Finite element analysis results are compared with measurements at various piston positions and excitation frequencies. Using a suitable model for the magnetic pr...
Source: Sensors and Actuators A: Physical - May 13, 2019 Category: Physics Source Type: research
Stepping Piezoelectric Actuators with Large Working Stroke for Nano-positioning Systems: A Review
Publication date: Available online 8 April 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Jianping Li, Hu Huang, Takeshi MoritaAbstractPrecision positioning systems with large working stroke (millimeter or more) and micro/nano-scale positioning resolution are widely required in both scientific research and industries. For this kind of applications, piezoelectric materials based actuators show unique advantages and have been widely employed. To overcome the demerit of the limited working stroke for single piezoelectric element, various stepping motion principles have been proposed in the past years, and accordingly...
Source: Sensors and Actuators A: Physical - April 10, 2019 Category: Physics Source Type: research
