Theoretic research on effective viewing field of spin vision measurement system

The spin vision measurement system based on a two-CCD vision sensor is widely used in the wind tunnel experiments. The math-model of vision measurement system is established, and the computing formula for the size of the effective viewing field is derived by using the geometric imaging theory. The effective viewing field is studied in detail, which considers the size of airplane model and the measuring accuracy of attitude parameters. And the relationships among structural parameters of this system and parameters of CCD itself are analyzed. Finally, using the self-programming emulating package, the simulation results are obtained, which have an important meaning on structure design of the spin vision measurement system.