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通过使用道磁电阻传感器进行磁测试来评估管道厚度

Jun Ito¹, Yudai Igarashi¹, Ryota Odagiri¹

¹Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba-yama, Aoba-ku, Sendai 980-8579, Miyagi, Japan.

Sensors (Basel, Switzerland)

|March 13, 2024

概括

一种新的磁测试 (MHT) 使用敏感传感器通过分析自然振动频率来测量管道厚度. 这种非破坏性测试方法实现了高精度,即使在水下,也能进行高效的检查.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
非破坏性测试是一种非破坏性测试.

背景情况:

像子测试这样的传统方法也有局限性.
可以改进磁流泄漏方法.
从管道振动中检测弱磁场是具有挑战性的.

研究的目的:

引入一种新的非破坏性检查方法:磁测试 (MHT).
演示MHT能够检测来自管道振动的弱磁场的能力.
评估MHT用于钢管壁厚度测量的准确性.

主要方法:

使用一个紧而高度敏感的道磁阻 (TMR) 传感器.
测量了不同壁厚的钢管的自然振动频率.
使用防水TMR传感器进行水下检查.
使用有限元法 (FEM) 分析用于磁场屏蔽和管道振动模拟的验证结果.

主要成果:

MHT精确评估了钢管壁厚度,精确度为几十微米.
使用防水TMR传感器进行的水下检查,可达到100微米以下的精度.
该方法在检测弱磁场时显示出高的信号噪声比.

结论:

磁测试 (MHT) 是管道厚度测试的一种优越的非接触式方法.
MHT提供快速而准确的非破坏性测试 (NDT) 功能.
这项技术支持未来无人驾驶,节省人力的长途管道检查系统.

关键词:

磁性子测试试验磁性子测试试验非破坏性测试是指非破坏性测试.管道管道管道管道管道管道管道管道管道管道管道管道道中的磁阻传感器.道中的磁电阻传感器.

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