MSMA传感器的优化设计及试验特性研究 *

doi:10.11985/2021.01.006

电气工程学报 ›› 2021, Vol. 16 ›› Issue (1): 42-47.doi: 10.11985/2021.01.006

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MSMA传感器的优化设计及试验特性研究 ^*

鲁军(), 李园君(), 常强()

沈阳理工大学自动化与电气工程学院沈阳 110159

收稿日期:2020-07-30 修回日期:2020-08-25 出版日期:2021-03-25 发布日期:2021-03-25
作者简介:鲁军,男,1965年生,博士,教授。主要研究方向为智能材料与智能控制系统。E-mail：lujunst@126.com
李园君,女,1995年生,硕士研究生。主要研究方向为智能检测与信息处理。E-mail：1737336100@qq.com
常强,男,1995年生,硕士研究生。主要研究方向为智能检测与信息处理。E-mail：861117844@qq.com
基金资助:
* 国家自然科学基金(51377110);辽宁省科学技术基金资助项目(20170540774)

Study on Optimal Design and Experimental Characteristics of MSMA Sensor

LU Jun(), LI Yuanjun(), CHANG Qiang()

School of Automation and Electrical Engineering, Shenyang Ligong University, Shenyang 110159

Received:2020-07-30 Revised:2020-08-25 Online:2021-03-25 Published:2021-03-25

摘要/Abstract

摘要：

基于磁控形状记忆合金(Magnetically controlled shape memory alloy,MSMA)的逆效应原理,研制了一种以MSMA材料为核心器件,能够将机械力转换为电磁信号的传感器。结合磁路设计的基本原理以及ANSYS有限元分析软件,以增大气隙的磁感应强度及感应电压值,减小励磁功率为优化目标,选取永磁体型号、永磁体厚度、聚磁头长度和气隙长度为优化变量,实现对传感器结构的优化设计与仿真研究。优化后的传感器磁场分布更加均匀,整体性能得到提高。试验表明传感器输出感应电压的计算结果与试验结果变化趋势一致,数值基本吻合,验证了传感器结构优化的正确性及合理性。

关键词: MSMA传感器, 优化设计, 结构仿真, 试验研究

Abstract:

Based on the inverse effect principle of magnetically controlled shape memory alloy (MSMA), a kind of sensor that uses MSMA material as the core device is developed, which can convert mechanical force into electromagnetic signal. Combined with the basic principle of magnetic circuit design and ANSYS finite element analysis software, in order to increase the magnetic induction intensity of the air gap and induced voltage value, reduce the excitation power, the optimal design and simulation of the sensor structure were realized via modefying paraments including the permanent magnet size, permanent magnet thickness, length of the polymer head and length of the air gap. The magnetic field distribution of the optimized sensor is more uniform and the overall performance is improved. The experimental results show that the change trend of the sensor output induced voltage is consistent with the experimental results, and the values are basically consistent, which verifies the correctness and rationality of the sensor structure optimization.

Key words: MSMA sensor, optimal design, structural simulation, experimental study

中图分类号:

TM359

鲁军, 李园君, 常强. MSMA传感器的优化设计及试验特性研究 ^*[J]. 电气工程学报, 2021, 16(1): 42-47.

LU Jun, LI Yuanjun, CHANG Qiang. Study on Optimal Design and Experimental Characteristics of MSMA Sensor[J]. Journal of Electrical Engineering, 2021, 16(1): 42-47.

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优化变量	优化原值	优化设计
气隙长度/mm	4.5	3.5
永磁体型号	N45	N52
永磁体长度/mm	4	2.2
聚磁头长度/mm	>5.75	5.75

偏置磁场/mT	试验值/mV	计算值/mV
300	110.6	110
350	120	115.9
400	120.5	118.7
450	130.4	120
500	140	134.5
550	145	140

激振力幅值/Hz	试验值/mV	计算值/mV
0.55	174.6	174.0
0.60	180.0	177.0
0.65	185.8	180.4
0.70	193.0	189.2
0.75	200.1	190.0
0.80	210.0	210.0

激振力频率/Hz	试验值/mV	计算值/mV
150	128.0	120.0
200	135.5	130.9
250	140.0	139.7
300	146.0	147.0
350	153.0	153.6

MSMA传感器的优化设计及试验特性研究 ^*

Study on Optimal Design and Experimental Characteristics of MSMA Sensor

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