Apparatus for measuring sheet-like workpieces, in particular flat glass panes or insulating glass elements

An apparatus for measuring a plate-shaped workpiece, comprising:

• a conveying device for conveying the plate-shaped workpiece in a conveying direction along a conveying path;
• first and second measuring devices including respective first and second drivers and respective first and second measuring rulers, each of the first and second drivers being selectively couplable to and decouplable from the plate-shaped workpiece, wherein, in a coupled state, each of the first and second drivers is moveable together with the plate-shaped workpiece in the conveying direction, and, in a decoupled state, is actively movable in a direction opposite to the conveying direction and is assigned to its respective one of the first and second measuring rulers, which extends in the conveying direction such that a position and/or a movement distance of each of the first and second drivers in the conveying direction is detectable,
• wherein the first and second measuring rulers are arranged to detect different regions of the conveying path of the plate-shaped workpiece in the conveying direction, and
• wherein the first and second drivers are couplable to decouplable from a main surface of the plate-shaped workpiece.