Measurement of Crosshair Shift on Magnification Change in Field-Conditions

Abstract

Crosshair shift with changing magnification of VIS camera is investigated in this article. The shift is a real problem that can significantly worsen fire-control system performance. The main condition of this measurement is ability to perform it on mounted devices in real fire-control system in field condition, it means that the measurement is adjusted to be done with accessible equipment. To measure this shift it is important to design target image which enables the shift measurement. Inaccuracy of this measurement is also discussed. The theoretical solution of the problem is demonstrated on experimental measurement.