Touch screen glass membrane radian measurement method and system

The invention belongs to the technical field of radian measurement, and provides a touch screen glass membrane radian measurement method and system. The radian measurement method comprises the following steps that A. film projection is performed on the standard designed radian, and a first arc is generated; B. the radian cross section of a touch screen glass membrane is amplified and projected to a projector, and a second arc is generated; C. alignment and correction are performed on the first arc and the second arc, and the radian difference of the first arc and the second arc is calculated; and D. whether the radian of the touch screen glass membrane meets the requirements is judged according to the radian difference of the first arc and the second arc. With application of the radian measurement method, whether the radian of the touch screen glass membrane meets the requirements is judged according to the radian difference of the first arc and the second arc; and whether the second arc deviates relative to the first arc is directly seen with the naked eyes so that whether the radian of the touch screen glass membrane meets the requirements can be further verified, and the effect of accurately measuring the radian of the touch screen glass membrane can be realized.