通过基于相位特征的平衡电磁场技术处理管道裂纹检测信号的处理方法
Wenxue Zheng1, Jiayin Li1, Yingxin Xiao2
1School of Information Science and Engineering, Shenyang University of Technology, Shenyang 110870, China.
The Review of scientific instruments
|December 11, 2023
概括
一种新的信号解调方法有效地消除了在管道裂检测过程中传感器震动的干扰. 该技术使用相位特征,以确保管道完整性的准确在线检查结果.
科学领域:
- 电磁主义 电磁主义
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
背景情况:
- 在线检查管道对于检测裂至关重要.
- 在电磁检查期间传感器倾斜震动会产生干扰信号,阻碍精确的裂检测.
- 现有的方法很难有效地区分裂纹信号与传感器引起的噪音.
研究的目的:
- 提出并验证一种新的信号解调方法,以消除管道裂检测中传感器震动的干扰.
- 分析裂纹和干扰信号的生成原理及其相位特征.
- 建立一个解调模型并确定有效消除干扰的最佳参数.
主要方法:
- 对裂纹检测信号和传感器震动干扰信号生成原理的分析.
- 基于裂纹和震动信号之间的相差的信号解调模型的开发.
- 模拟分析可行条件并确定参考信号阶段.
- 使用平台检测和拉动测试进行实验验证.
主要成果:
- 传感器震动信号和裂纹信号之间存在显著的相位差异 (碳钢管道在各种震动角度下为-4°).
- 拟议的方法成功地使用直角参考信号 (86°阶段) 实现了检测信号的解调.
- 该方法保留了原始检测信号的特征,并为不同的裂深度提供线性输出响应.
结论:
- 基于相位的信号解调方法有效地消除了在管道裂检测过程中传感器倾斜震动干扰.
- 这种技术提高了管道完整性评估在线检查的准确性和可靠性.
- 该方法提供了一个强大的解决方案,用于获得清晰的裂纹信号,从而实现精确的深度评估.
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