Ultrasonic Phased Array Imaging Testing by Total Focusing Method
-
摘要: 超声相控阵全聚焦法（TFM）是用全矩阵捕获模式（FMC）获取的数据来进行信号处理的，所有计算均以30帧/s的刷新率完成。与标准相控阵法相比，全聚焦法成像分辨力甚高，能优化缺陷的定位、定量、表征等，并可对形状复杂试件进行检测。综述了超声相控阵全聚焦法成像检测的典型工业应用，并作了相关讨论，以供国内同行借鉴。Abstract: The total focusing method (TFM) is a signal processing algorithm using data acquired in full matrix capture mode (FMC). All computations are achieved at a refresh rate up to 30 frames per second. In comparison with standard phased array techniques, this method can provide higher resolution, optimizing flaw location, measurement and characterization. Also, TFM can be used to image complex components. This article gives some typical cases of application of phased array TFM in industrial inspection and discussion on the relevant issues in order to provide references to domestic colleagues.
-
-
[1] BOULAVINOV A.Sampling phased array a new technique for signal processing and ultrasonic imaging[C]//7th ECNDT.Berlin:[s.n], 2006.
[2] JOBST M, CONNOLLY G.Demonstration of the application of the total focusing method to the inspections of steel welds[C]//9th ECNDT.Moscow:[s.n], 2010.
[3] 李衍. ASME标准新版中有关相控阵超声成像检测的要点评析第一部分:两种方法要求[J].无损检测,2015,37(7):6-9. [4] ASTM E2491 Guide for evaluating performance characteristics of phased-array ultrasonic testing instruments and systems[S].
[5] WOLFRAM A. High resolution phased array imaging using the total focusing method[C]//19th WCNDT. Munich:[s.n], 2016.
[6] MICHAEL B, STEFAN K. Practical application of total focusing for sizing of imperfections in welded joints[C]//19th WCNDT. Munich:[s.n], 2016.
[7] CHOO N, JIN K, CHOI W, et al. Ultrasound phased array imaging on curved surface for weld inspection of elbow pipe as a replacement for radiographic inspection[C]//19th WCNDT.Munich:[s.n],2016.
[8] BIRD C R. Ultrasonic phased array inspection technology for the evaluation of friction stir welds[J]. Insight, 2004, 46(1):31-36.
[9] 朱德才,王东,李予卫,等. 一种压水堆核电站主管道窄间隙自动焊焊缝的超声检测方法[J]. 无损检测,2014,36(5):58-61. [10] 王悦民,李衍,陈和坤. 超声相控阵检测技术和应用[M].北京:国防工业出版社,2014. [11] JEUNE L L,ROBERT S,DYMUS P. Adaptive ultrasonic imaging with the total focusing method for inspection of complex components immersed in water[J]. Ultrasonics, 2014, 61:673-684.
[12] ROBERTI S, OLIVIER C. Real-time inspection of complex composite structures with a self-adaptive ultrasonic technique[C]//18th WCNDT.Durban:[s.n],2012.
[13] 李衍. 柔性相控阵换能器用于形状不规则工件的超声检测[J]. 无损探伤,2013,37(5):1-6.
计量
- 文章访问数: 22
- HTML全文浏览量: 3
- PDF下载量: 14
下载:
