相控阵超声检测扇形扫描角度范围
Sectorial Scan Angle Range for Phased Array Ultrasonic Testing
摘 要
相控阵超声检测技术灵活、可靠、高效,适于特种设备焊缝的无损检测。针对相控阵超声斜入射脉冲横波检测特种设备的低碳钢材料焊缝时,扇形扫描角度范围存在问题,通过理论计算声波在有机玻璃楔块-钢界面的透射率,发现扇形扫描时声束的折射角度范围为38°～90°时可行,但考虑到声束偏转角度过大时有效声辐射口径变小等实际问题,建议扇形扫描中角度范围上限不大于75°。
扇形扫描
滑移界面
角度范围
Phased array ultrasonic testing
Sectorial scan
Sliding interface
Angle range
Abstract
Phased array ultrasonic testing technology is flexible,reliable,efficient and suitable for special equipment welds nondestructive testing. Sectorial scan angle range was investigated in this paper for phased array ultrasonic oblique incident pulse shear wave testing of special equipment welds made in low carbon steel. The theoretical calculation of ultrasound wave energy transmission coefficient through the plexiglass wedge-steel interface was carried out. We find that setting sector scan beam deflection angle range to 38 ° to 90 ° is feasible. When the beam deflection angle is too large,some actual problems will emerge such as effective acoustic radiation dimension comes small,so that upper limit of the sectorial scan angle of 75 ° is suggested.
中图分类号 TG115.28 DOI 10.11973/wsjc201511003
所属栏目 2015远东无损检测新技术论坛论文精选
基金项目 国家自然科学基金资助项目(11274091,11574072);河海大学中央高校基金资助项目(2011B11014);国家质检公益性行业科研资助项目(201010070)
收稿日期 2015/5/28
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备注姜学平(1983-),男,讲师,主要从事超声检测和声场成像测量,科研和教学工作。
引用该论文: JIANG Xue-ping,WANG Peng,ZHENG Hui,HAN Qing-bang. Sectorial Scan Angle Range for Phased Array Ultrasonic Testing[J]. Nondestructive Testing, 2015, 37(11): 10～12
姜学平,王鹏,郑晖,韩庆邦. 相控阵超声检测扇形扫描角度范围[J]. 无损检测, 2015, 37(11): 10～12
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参考文献
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【2】ASME-2013 Boiler and pressure vessel code(V): nondestructive examination［S］.
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【4】孙芳,曾周末,王晓媛,等. 界面条件下线型超声相控阵声场特性研究［J］. 物理学报,2011,60(9): 1-6.
【5】张碧星,王文龙.凹面相控阵聚焦声场在液固界面上的反射和折射［J］. 物理学报,2008, 57(6): 3613-3619.
【6】强天鹏,孙忠波,肖雄,等.超声相控阵角度偏转极限测试方法探讨［J］. 无损检测,2012,34(3),21-24.
【7】CHARLESWORTH C. Ultrasonic phased array testing in the power generation industry: novel wedge development for the inspection of steam turbine blades roots［D］. Conventry:University of Warwick,2011.
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