| 超声相控阵无损检测仪器关键技术研究 |
| Research on Key Technologies of Ultrasonic Phased Array Nondestructive Testing Instrument |
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| 中文摘要: |
| 超声相控阵仪器作为无损检测关键设备之一，对材料内部缺陷分析、参数检测、失效评估等研究具有重要意义。本文从相控阵技术原理入手，分析编码激励、延时聚焦、数字信号快速处理、大数据传输与调度模块各关键模块工作机理，根据仪器检测性能指标要求，从仪器实时性、灵活性、精度等方面对关键技术进行深入研究，并通过实验验证各关键模块的实现效果。研究成果对于无损检测仪器的高精度化、高速化、高效率化，具有重要的实际应用价值。 |
| 英文摘要: |
| As one of the key equipment for non-destructive testing,ultrasonic phased array instrument is of great significance for internal defect analysis, parameter detection and failure evaluation of materials. This paper starts with the principle of phased array technology and analyzes the working mechanisms of key modules such as coded excitation, delayed focus, digital signal fast processing, big data transmission and dispatching module. According to the requirements of the instrument detection performance index, in-depth researches were conducted on the key technologies from the aspects of real-time, flexibility, and precision of the instrument, and experiments were carried out for verification of the implementation of key modules. The research results have important practical value for the high-precision, high-speed, and high-efficiency of nondestructive testing instruments. |
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| 中文关键词: 超声相控阵 编码激励 延时聚焦 数字信号快速处理 大数据传输与调度 |
| 英文关键词:Ultrasonic phased array Coded excitation Delayed focus Digital signal fast processing Big data transmission and scheduling |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2018.03.07 |
| 引用本文：刘桂雄，唐文明，李宇中.超声相控阵无损检测仪器关键技术研究[J].计测技术,2018,38(3):. |
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