基于弱磁成像的电缆腐蚀非破坏性测试的实验和定位方法
Yujie Wu1,2, Runchuan Xia1,2, Yuanzheng Feng1,2
1State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China.
Sensors (Basel, Switzerland)
|February 27, 2026
概括
这项研究引入了一种新的弱磁成像方法,用于精确检测和量化钢丝电缆中的腐蚀. 该技术准确地测量了腐蚀的轴长和周边宽,有助于结构完整性的评估.
科学领域:
- 工程 工程师 工程师 工程师
- 材料科学 材料科学 材料科学
- 非破坏性测试是指非破坏性测试.
背景情况:
- 准确识别平行钢丝缆的腐蚀程度对于结构完整性至关重要.
- 现有的方法在量化腐蚀严重程度时可能缺乏精度.
研究的目的:
- 开发和验证一种新的弱磁成像方法,用于在平行钢丝电缆中精确检测腐蚀.
- 为了建立磁信号特征和腐蚀参数之间的定量关系.
主要方法:
- 从腐蚀的平行线束中使用12通道的霍尔阵列收集弱磁信号.
- 分析了腐蚀强度对磁性泄漏信号分布 (Bx,Bz) 的影响.
- 开发了一种融合成像方法,结合了自适应值K和线性插值,通过3D有限元素建模验证.
主要成果:
- 在轴性腐蚀长度和Bz组件的峰值到谷底距离之间发现了强烈的线性关系 (R2 = 0.998).
- 在环形腐蚀宽度和Bz.的环形分布范围之间观察到正相关性.
- 适应性值K细分有效地划定了腐蚀边界,以准确定位.
结论:
- 拟议的弱磁成像方法能够准确地可视化和定量评估电缆腐蚀.
- 该技术为钢丝电缆的结构健康监测提供了可靠的技术支持.
- 这种方法提高了在关键基础设施中对腐蚀的非破坏性测试的精度.
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