压力容器2018，Vol.35Issue(5)：73-77,5.DOI:10.3969/j.issn.1001-4837.2018.05.012
水浸相控阵超声线阵列检测聚焦法则设置
Focal Law Setting in Water Immersion Phased Array Ultrasonic Testing
康达 1张宏 2马兆光 1宋佳斌 2林珊珊1
作者信息
- 1. 北京动力机械研究所,北京 100074
- 2. 中国航天科工集团第三研究 院无损检测中心,北京100074
- 折叠
摘要
Abstract
In phased array ultrasonic testing,the focal law is the core for realizing beam steering and focu-sing,which has direct bearing on the effective beam coverage and final ultrasonic testing results.Because of the coupling water layer and workpiece under test are heterogeneous medium,there is certain difficulty in the setting of the focal law.To solve the above difficulties,the focal law setting of water immersion phased array ultrasonic testing was studied using the aluminum alloy test piece with a flat bottom hole of 5～50 mm depth and diameter of 0.8 mm,and the setting principle of the focal law corresponding to dif-ferent depth range was obtained.Besides,the effective coverage of the phased array focusing beam in the direction of wall thickness was achieved.Furthermore,this method can also be extended to the application of water immersion phased array ultrasonic testing of many materials.关键词
水浸超声/相控阵超声/线阵列/聚焦法则Key words
water immersion ultrasonic testing/phased array ultrasonic testing/linear array/focal law分类
机械制造引用本文复制引用
康达,张宏,马兆光,宋佳斌,林珊珊..水浸相控阵超声线阵列检测聚焦法则设置[J].压力容器,2018,35(5):73-77,5.
