Experimental research on principle of open magnetic circuit magnetostrictive guided wave sensor

DING Xiu-li; WU Xin-jun; SUN Peng-fei

doi:10.13873/J.1000-9787(2014)12-0017-03

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Experimental research on principle of open magnetic circuit magnetostrictive guided wave sensor

更新时间：2025-09-11

- Experimental research on principle of open magnetic circuit magnetostrictive guided wave sensor
- Vol. 33, Issue 12, Pages: 17-19(2014)
- 作者机构：
  
  华中科技大学机械科学与工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2014)12-0017-03
  CLC： TP212
- Published：2014
- 稿件说明：
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[1]丁秀莉,武新军,孙鹏飞.开放磁路式磁致伸缩导波传感器原理的实验研究[J].传感器与微系统,2014,33(12):17-19.

DING Xiu-li, WU Xin-jun, SUN Peng-fei. Experimental research on principle of open magnetic circuit magnetostrictive guided wave sensor[J]. 2014, 33(12): 17-19.
[1]丁秀莉,武新军,孙鹏飞.开放磁路式磁致伸缩导波传感器原理的实验研究[J].传感器与微系统,2014,33(12):17-19. DOI： 10.13873/J.1000-9787(2014)12-0017-03.

DING Xiu-li, WU Xin-jun, SUN Peng-fei. Experimental research on principle of open magnetic circuit magnetostrictive guided wave sensor[J]. 2014, 33(12): 17-19. DOI： 10.13873/J.1000-9787(2014)12-0017-03.

摘要

磁致伸缩导波技术具有单点激励即可实现长距离检测的优点

但在检测非铁磁性构件或端部外露构件时面临难题。在分析已有磁致伸缩导波传感器检测原理的基础上

提出首先利用磁致伸缩效应在铁磁性波导管中产生导波;然后通过端部将其传入构件实现检测的原理

构建了开放磁路式磁致伸缩导波传感器原理的研究实验平台。采用270 kHz的纵向模态导波

在长2800mm

壁厚2.5mm的Φ25mm低碳钢钢管上可检测出0.5mm深刻槽和Φ5mm的通孔缺陷

且在长2800mm

壁厚2.5mm的Φ25mm不锈钢钢管上可得到明显的端部回波信号

从而为该传感器进一步应用于非铁磁性或端部外露构件检测提供了依据。

Abstract

Magnetostrictive guided wave technology can realize long distance testing with single point excitation

however

it faces challenges when testing non-ferromagnetic components or components with exposed ends.On the basis of analyzing testing principle of existing magnetostrictive guided wave sensors

firsdy

propose using magnetostrictive effect to generate guided wave in ferromagnetic waveguide tube;and then transfers the wave to component to be tested

and also laboratory platform for principle research on open magnetic circuit magnetostrictive guided wave sensor is built.Longitudinal mode waveguide of 270 kHz is used to detect the notch with 0.5 mm thickness and through-hole defect of Φ5 mm in a 25 mm-diameter

2.5 mm-wall thickness

2800 mmlength low carbon steel pipe

and the sensor also can receive obvious end echo signal in a 25 mm-diameter

2.5 mm-wall thickness

2 800 mm-length stainless steel pipe

which provides basis for further application in detection of non-ferromagnetic or end-exposed component.

关键词

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references

基于磁致伸缩效应的超声应力波传感器设计与优化 [J]. 杨雅洁,周丽. 仪器仪表学报 . 2010(11)

基于磁致伸缩效应在钢绞线中激励接收纵向导波模态的试验研究 [J]. 刘增华,张易农,张慧昕,何存富,吴斌. 机械工程学报 . 2010(06)

非接触式磁致伸缩导波管道无损检测系统的研制 [J]. 武新军,徐江,沈功田. 无损检测 . 2010(03)

基于磁致伸缩效应的导波管道缺陷检测系统设计研究 [D]. 陈福梁. 浙江大学 2014

一种超声波导波同端激励与接收的超磁致伸缩换能器 [P]. 王晓煜,吴晶晶,谭晓东. 中国专利:CN102539540A,

一种声波无损检测用磁致伸缩换能器 [P]. 张洪平,赵栋梁,徐立红,杜兆富,王蕾. 中国专利:CN101526503,

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