反向刺激使NDE的超声波二进制编码能够使用自定义的线性测试系统进行NDE
Marius W Schäfer1, Sarah C L Fischer1
1Fraunhofer IZFP, Campus E3.1, Saarbruecken, 66123, Saarland, Germany.
Ultrasonics
|May 26, 2024
概括
这项研究引入了超声波测试的逆刺激,使超声波回声能够精确控制. 这种方法实现了二进制超声波回声生成与性能匹配的数字代码,增强非破坏性评估能力.
科学领域:
- 材料科学 材料科学 材料科学
- 非破坏性的评价
- 信号处理 信号处理
背景情况:
- 传统的超声波测试方法在复杂的材料方面存在局限性.
- 像雷达和医疗超声波中的编码刺激等技术提供了优化潜力.
- 扩展超声波测试能力需要先进的信号处理策略.
研究的目的:
- 探索超声波测试系统的逆刺激.
- 为了设计超声波回声来匹配目标代码序列.
- 展示一种用于增强超声波非破坏性评估的新方法.
主要方法:
- 设计并制造了一种定制的超声波测试系统.
- 通过脉冲和声刺激获得了系统的传输功能.
- 基于转移函数进行逆刺激,以塑造超声波回声.
- 分析了生成的回声的自动相关函数,并将其与原始代码序列进行了比较.
主要成果:
- 成功设计了超声波回声来匹配目标二进制代码序列.
- 证明反向刺激可以产生二进制超声波回声,其性能相当于数字代码.
- 验证了用于回声工程的定制超声波系统的有效性.
结论:
- 反向刺激是先进超声波测试的可行技术.
- 拟议的集成低压系统可以通过传输函数分析实现回声工程.
- 这种方法显著提高了超声波非破坏性评估的功能和应用.
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