衍射时差法超声探伤仪校准JJF 1447-2014
| 序号No. | 校准项目Calibration Item |
| 1. | 外观检查 Appearance Inspection |
| 2. | 接收器带宽Δf Receiver bandwidth |
| 3. | 发射脉冲上升时间Launch pulse rising time |
| 4. | 上表面盲区Upper surface blind area |
| 5. | 缺陷深度测量误差Defect depth measurement error |
| 6. | 缺陷高度测量误差Defect height measurement error |
| 7. | 缺陷长度测量误差Defect length measurement error |