可曲的分相阵列超声传感器用于在曲的表面上进行成像
Shizhen Yin1,2,3, Han Zhang4,5, Fangfang Shi5,6
1State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China.
ACS nano
|February 20, 2025
概括
这项研究介绍了一种新型可曲相阵列超声传感器 (PAUT),具有恒定度保存设计,用于在曲表面进行改进的非破坏性测试. 这一创新通过保持一致的元素间距来确保准确的超声波成像.
科学领域:
- 非破坏性测试是一种非破坏性测试.
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 灵活的阶段阵列超声传感器 (PAUT) 对于各种应用中的非破坏性测试至关重要.
- 可伸缩的PAUT在复杂的曲线上表现出色,但在可变元素音调和实时音调测量方面却存在困难.
- 可曲的PAUT提供了更实用的工程解决方案,尽管在音调变化方面存在局限.
研究的目的:
- 推出一款具有创新性的可曲PAUT,采用恒定点保存 (CPP) 设计.
- 为了应对曲面应用的柔性PAUT中可变元素距离的挑战.
- 为了提高超声波束方向和聚焦不均表面的精度.
主要方法:
- 开发了一种灵活的12x12形复合材料元素阵列,与结合.
- 实施了恒定音位保存 (CPP) 设计,以保持统一的元素音位.
- 每个压电元件的内置个别支和匹配块.
主要成果:
- CPP 设计允许传感器适应不同的曲率,同时保持恒定的元素距离.
- 启用了精确的渐进时间延迟,用于精确的超声波束方向和聚焦.
- 实验脉冲回声检查和部门扫描显示了高质量的成像能力.
结论:
- 具有CPP设计的新型可曲PAUT有效地克服了传统柔性PAUT的局限性.
- 这项技术可以在复杂的曲面上进行准确的非破坏性测试.
- 该设计提高了高级应用程序的检测性能和成像质量.
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