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传统直线狭缝的优点是读数方便,缺点是只能检测φ200min×50。平面波透镜在横向85mm范围内的输出波形差。研究中使用高精度平面波透镜φ200mm×50°,在透镜输出面180mm范围内均匀布置200根光纤,光纤用铝板固定。在光纤输入端面与炸药透镜间充入氩气增强发光,用SJZ高速转镜式相机,转速15万转,记录光纤输出端信号。当透镜底面输出波出差范围为φ30,φ60,φ90,φ120,φ150,φ180mm时,波形差为0.031,0.034,0.034,0.041,0.052,