在测量声学非线性参数时对系统非线性进行补偿
Jiung Yoo1, Dong-Gi Song2, Kyung-Young Jhang3
1Department of Mechanical Convergence Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea.
Ultrasonics
|October 8, 2024
概括
本研究引入了一种新的方法,通过减少系统非线性来改善声学非线性测量. 该技术提高了对和化等材料的超声波测试的可靠性.
科学领域:
- 材料科学 材料科学 材料科学
- 非破坏性测试 不破坏性测试
- 声学 声学 在声学方面
背景情况:
- 声学非线性参数对于材料表征至关重要.
- 使用PZT传感器的传统透过传输方法存在系统非线性问题,影响测量准确度.
- 接收到的第二波元件被传感器诱导的非线性污染了.
研究的目的:
- 提出和验证一种用于减少声学非线性测量的系统非线性的一种新方法.
- 通过最小化传感器诱导的工件来提高超声波测试的可靠性.
- 准确确定材料的声学非线性参数.
主要方法:
- 引入了一种新的技术,涉及到发射和接收传感器之间的直接接触,而无需样本.
- 该方法通过使用 (Al6061-T6) 和不同厚度的化样本进行实验验证.
- 测量使用通过传输设置进行.
主要成果:
- 提出的方法显著减少了系统非线性偏移在第二波测量.
- 发现第二波的大小与样品厚度成正比,偏移较小.
- 该方法的有效性在不同的传感器设置中保持不变.
- 对于Al6061-T6和化的非线性参数的比率与文献价值一致.
结论:
- 这种新方法有效地减轻了声学非线性测量的系统非线性.
- 这种技术提高了超声波材料表征的可靠性和准确性.
- 经过验证的方法为精确的声学非线性参数确定提供了强大的解决方案.
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