金属圆棒超声螺旋扫查检测的合成孔径成像技术 |
李振杰, 蔡桂喜, 张博, 李经明, 李建奎 |
Synthetic Aperture Imaging Technology for Ultrasonic Spiral Scanning Detection of Metal Bars |
LI Zhenjie, CAI Guixi, ZHANG Bo, LI Jingming, LI Jiankui |
图5 钢制试样示意图 |
Fig.5 Schematic diagram of steel specimen (ϕ—diameter of the specimen) (a) transverse-hole artificial defect sample (b) polar diagram of each transverse hole position |
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