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流体超声波生成用于非破坏性测试
Benjamin Bühling1, Stefan Maack1, Christoph Strangfeld1
1Department 8 "Non-Destructive Testing", Bundesanstalt für Materialforschung und -prüfung, Unter den Eichen 87, 12205, Berlin, Germany.
Advanced materials (Deerfield Beach, Fla.)
|January 14, 2024
概括
一个新的流体超声波传感器产生高振幅的超声波爆发,用于空气合超声波测试 (ACU). 这种强大的非接触方法克服了当前非破坏性测试 (NDT) 技术的局限性,使其能够得到更广泛的工业应用.
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
- 机械工程 机械工程
背景情况:
- 空气合超声波测试 (ACU) 是一个有前途的非破坏性测试 (NDT) 方法.
- 目前ACU的采用是有限的,特别是在较低的超声波频率,因为在强大的设备上产生足够的信号幅度的挑战.
- 像接触测试和液体浸泡测试这样的现有方法具有更广泛的应用,但缺乏非接触能力.
研究的目的:
- 引入一种新的流体超声波传感器,旨在克服现有ACU设备的局限性.
- 为了证明这种新型传感器在为NDT应用中产生高振幅超声波爆发的能力.
- 评估流体传感器在推进工业ACU实施方面的潜力.
主要方法:
- 开发一种新型的空声源,利用可视化流体开关内的声波喷流中的流动不稳定性.
- 产生高达60kHz的超声波爆发,平均峰值压力为320Pa.
- 使用流体传感器对四种不同的材料进行非接触透过传输实验,并将结果与传统传感器进行比较.
主要成果:
- 流体超声波传感器成功地产生了适合NDT任务的超声波爆发.
- 传感器在对传统设备具有挑战性的环境中表现出了稳健的运行.
- 实验证实了传感器能够为非破坏性测试提供合适的声学信号.
结论:
- 流体超声波传感器为在ACU中生成高振幅超声波信号提供了一个可行的解决方案.
- 传感器的坚固设计和非接触性质为工业无线探测技术应用提供了显著的优势.
- 这一创新有可能加速在各个行业采用和实施空气合超声波测试.
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