数字状电流检测方法基于使用STM32的高速采样
Xiong Cao1, Erlong Li1, Zilan Yuan1
1School of Mechanical Engineering, Sichuan University, Chengdu 610065, China.
Micromachines
|June 27, 2024
概括
本研究介绍了用于表面缺陷分析的数字流非破坏性测试系统. 基于STM32的高速系统使用先进的信号处理精确检测钢板上的小缺陷.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 非破坏性测试是指非破坏性测试.
背景情况:
- 电磁旋流测试对于材料表面的非破坏性分析至关重要.
- 现有的方法面临着噪声干扰和精确缺陷识别的挑战.
研究的目的:
- 开发使用高速采样的数字旋流非破坏性测试 (NDT) 系统.
- 为了提高表面缺陷检测的准确性和实时可视化.
主要方法:
- 使用差分旋流线圈探头与差分桥和放大器来最大限度地降低噪音.
- 一个STM32微控制器处理高速信号采集.
- 通过以太网传输,在主机计算机上实现数字解调和处理 (平均,适配,异常值删除).
主要成果:
- 该系统实现了高达8.84 MHz的运行频率.
- 它成功地在钢板上发现了小到1毫米的表面缺陷.
- 实现了表面状况的实时图形可视化.
结论:
- 开发的数字旋流NDT系统提供高速,准确的表面缺陷检测.
- 集成STM32和先进的信号处理有效地克服噪音和增强缺陷的解决方案.
- 该系统为金属表面的实时NDT提供了可行的解决方案.
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