Measuring Method on the Relative Position between the Rack and the Missile with T-Drawbar

Abstract

In order to load a missile with T-drawbar into the rack fixed in a fighter plane automatically and quickly, the relative position between the rack and the T-drawbar must be measured. The principle of the relative position measuring method is introduced, the parameters calculating equations are derived, and the precisions are analyzed. The measuring system is composed of lens, planar array CCDs, lasers, and cooperative objects. By analyses, the system can measure the relative position information including X, Y and Z between the drawbar and the rack. The precisions of length are 7.8mm in X, and 1.2mm in Y and Z.