一种使用超声波分相阵列的替代雷利波激发方法.
Bhupesh Verma1, Pierre Bélanger1
1PULETS, Département de Génie Mécanique, École de technologie supérieure (ÉTS), 1100 Notre-Dame St. West, Montreal, Quebec H3C 1K3, Canada.
Ultrasonics
|August 12, 2023
概括
一种新方法使用分相阵列传感器产生超声波雷利波,克服了非破坏性测试 (NDT) 传统技术的局限性. 这种方法在材料检查中提供了更大的灵活性和效率.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 非破坏性测试 (NDT) 是一种非破坏性测试.
背景情况:
- 超声波雷利波对于各行各业的无线探测检查至关重要.
- 雷利波激发的常规技术面临着传输损失和有限的波导灵活性等挑战.
- 使用雷利波探测和测量表面裂是一个活跃的研究领域.
研究的目的:
- 引入使用常规超声波相位阵列传感器进行雷利波激发的替代方法.
- 解决技术的局限性,包括传输损失和角度依赖.
- 展示一种灵活而高效的方法,用于在各种材料中产生雷利波.
主要方法:
- 使用了传统的超声波相位阵列传感器,具有可控元件激发延迟.
- 根据传感器距离和雷利波速度估计的激发延迟.
- 通过实验测试和有限元 (FE) 模拟验证了该方法.
- 量化了产生的雷利波的定向性和光束分歧.
主要成果:
- 成功证明了雷利波的单向和选择性激发.
- 实验结果显示与FE模拟有很强的一致性.
- 拟议的方法在使用相同的相位阵列传感器的各种材料上被证明是有效的.
- 描述生成的波,以确认它们的性质是雷利波.
结论:
- 阶段阵列传感器方法为雷利波激发的技术提供了一个可行的替代方案.
- 这种新的方法提高了灵活性,并可能降低了在无核试验中的检查成本.
- 该方法在开发基于雷利波的先进检查技术方面具有重大潜力.
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