Research On The Controlling System Of Measuring Typical Fragment Frontal Area

When cannonball has blasted, ships of fragments are anomalistic. When fragment flying, its flying attitude is free rolling. So when we study its flying attitude, its attitude in any direction is thought equiprobable.On the basis of precept of fragment average frontal area measuring system, controlling system total precept of fragment average frontal area is analyzed and designed in this paper. The principles of CCD, driving motor, photoelectric coder and position sensor are selected. control subsyetems are designed according to the high position precision of camera, focusing and rotation angle. By testing, measurement accuracies meet the requirements.