Discussion on Method of Determination of Phased-Array Beam Steering Limits
摘 要
理论分析了ASTM E2491中对超声相控阵声束偏转极限角度的测试方法的实质,提出了相控阵声束偏转极限角度的声压下降的测试方法,并通过试验验证了所提方法的可行性,与理论吻合较好。
Abstract
By theoretical analysis, the essence of determination of phased array beam steering limits in ASTM E2491 was discussed. A dB drop method was therefore proposed and the new method was feasible and corresponding with the theory better as shown by a series of experiments.
中图分类号 TG115.28
所属栏目 试验研究
基金项目 质检公益性行业科研专项(200910268)
收稿日期 2011/12/11
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备注强天鹏(1951-),男,研究员级高级工程师,多年致力于无损检测新技术的研究与推广。
引用该论文: QIANG Tian-Peng,SUN Zhong-Bo,XIAO Xiong,ZHENG Kai,LIU Xiao-Rui. Discussion on Method of Determination of Phased-Array Beam Steering Limits[J]. Nondestructive Testing, 2012, 34(6): 21~24
强天鹏,孙忠波,肖雄,郑凯,刘晓睿. 超声相控阵角度偏转极限测试方法探讨[J]. 无损检测, 2012, 34(6): 21~24
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参考文献
【1】ASTM E 2491: 2008Standard Guide for Evaluating Performance Characteristics of Phased-Array Ultrasonic Testing Instrucments and Systems: Annexes A2[S].
【2】Ginzel E, Johnson D. Phased-Array Resolution Assement Techniques[ED/DB]. http://www.ndt.net/article/v13n07/ginzel.pdf, www.ndt.net, 2008.
【3】krautkrmer J, Krautkrmer H. Ultrasonic Testing of Materials[M]. Berlin, Spring:1990.
【2】Ginzel E, Johnson D. Phased-Array Resolution Assement Techniques[ED/DB]. http://www.ndt.net/article/v13n07/ginzel.pdf, www.ndt.net, 2008.
【3】krautkrmer J, Krautkrmer H. Ultrasonic Testing of Materials[M]. Berlin, Spring:1990.
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