摘要
本自动检验仪是光、机、电、算相结合的非接触式高速自动测量弹壳长度和底部直径的仪器。在子弹壳生产线上测量精度为0．02mm，测量速度为250件／分。本文介绍了光学系统的设计，包括光路的选择；光源和有关参数的选取和计算。更重要的是导出了在远心光路中，物体沿轴向移动时，在原象平面位置上光斑直径的表达式；讨论了，投影物镜的放六倍数β，光束孔径角u与CCD节距的关系。
The tester in question is an optical-mechanical-electronic-computerized combination for the fast and automatic measurement of bullet shells' length and base dtameter. The ddriensional accuracy is 0. 02mm and measurement speed is 250 pieces min' Selection of the optical path for the system, choice and calculation of the light source and parameters are described' It is pointed out that the expressiun of D gives the dtameter of spot in the original image plane where the object moves for an axial displacement in a telecentric optical path' The relationships between the displacement J, the amplification factor β of the projection objective, aperture angle u of light beam and CCD pitch are discussed'
出处
《兵工学报》
EI
CAS
CSCD
北大核心
1997年第3期260-264,共5页
Acta Armamentarii
