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Study on the Control Technology of MCU Self-sensing Actuator

Author: DongFang
Tutor: LinChengWu
School: Shenyang University of Technology
Course: Detection Technology and Automation
Keywords: Controlled shape memory alloy ANSYS Time division multiplexing Edge element method The autobiography sense actuator
CLC: TP273.5
Type: Master's thesis
Year: 2011
Downloads: 53
Quote: 0
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Abstract


Magnetic shape memory alloy (Magnetically Controlled Shape Memory Alloy, MSMA ) is a novel functional materials with shape memory function . Today, as a main component Ni-Mn-Ga MSMA often used for the solution of the sensors and actuators . In sensor applications , you can choose to use the magnetic permeability of the material as the basic elements of strain , stress field solver ; actuator applications , to observe the magnetic field changes by the MSMA material deformation and displacement . The materials compared with conventional magnetostrictive material deformation is 50 times or even greater , both shape memory effect and super - magnetostrictive phenomenon alloy , has a broad application prospects in the field of scientific research in the future . In this paper, based on the experimental test platform on the basis of the dual coil actuator autobiographical sense , experimental apparatus system to build a single-coil actuator autobiographical sense . Research from both forward and inverse characteristics controlled shape memory alloy outer characteristics , and in accordance with the experimental data measured using MATLAB to draw the characteristic curve of the material and provide a theoretical basis for future studies based on single-chip implementation of the autobiographical sense control technology . To further validate the structures the rationality and effectiveness of the model , with ANSYS simulation software to establish the finite element model of the the MSMA dual coil and single coil autobiography sense actuator using edge element method for analysis of the MSMA dual coil and single-coil self- sensing actuators under different excitation voltage is applied to three-dimensional static magnetic field . Derived the MSMA and silicon steel sheet under different excitation voltage is applied to the distribution of the magnetic flux density and magnetic field strength . Magnetic induction curve is drawn according to the simulation data , and establish a the dual coil autobiography sense actuator mathematical model to analyze the space magnetic field calculation of the excitation coil . Throughout the experimental procedure for performing signal separation of the single coil autosensing TDM Thought MIMOs thought signal decoupling of the dual coil actuator autosensing contrast , analysis of the execution signal autosensing output characteristics, and extract the sensor signals, and further demonstrate the practical value and application prospect of controlled shape memory alloy .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system > Computer control, computer control system
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