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基于改进的频率响应的非接触式超声波材料识别
Huanchao Du1, Zhiyu Chen1, Ying Liu1
1Xi'an University of Posts and Telecommunications, No. 618, Chang'an District, Xi'an 710121, China.
Ultrasonics
|October 22, 2025
概括
本研究介绍了一种非接触式超声波方法,用于使用简单的探针进行材料识别. 它在识别合金方面实现了100%的准确性,为各种应用提供了低成本的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 声学 声学 在声学方面
- 信号处理 信号处理
背景情况:
- 准确且具有成本效益的材料识别在各个行业至关重要.
- 现有的非接触式方法往往在准确性或复杂性方面面临限制.
- 开发用于快速和可靠的材料表征的新技术是一个持续的挑战.
研究的目的:
- 提出一种新的非接触式超声波材料识别方法.
- 通过使用先进的信号处理技术来提高识别准确性.
- 建立一个低成本和广泛适用的物体识别解决方案.
主要方法:
- 使用现成的超声波探针进行非接触式信号采集.
- 应用频域过 (带宽,隙) 并为初始信号处理提出改进的频率响应 (IFR).
- 采用经验模式分解 (EMD) 进行时间域过,从内在模式函数 (IMF) 提取信息作为特征.
- 通过将概率密度函数与重复测试中的信息值相匹配,开发特定材料特征模板.
主要成果:
- 在四个相同尺寸的合金板上实现了100%的识别准确性.
- 证明了联合频率和时间域过方法的有效性.
- 验证了拟议方法的可行性,以准确识别材料.
结论:
- 拟议的非接触式超声波方法通过简单,低成本的设备提供高识别精度.
- 该技术整合了IFR信号和来自EMD的信息,为材料表征提供了强大的方法.
- 由于这种方法的效率和成本效益,它对各种物体识别应用具有显著的潜力.
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