| 摘要 |
A method and a device for measuring the width of a workpiece (100), having a longitudinal direction, a first side having a first edge part and a second side having a second edge part, the edge parts being arranged substantially in the longitudinal direction. The method and device obtain a first measurement of the position of the first edge part (110) of the workpiece relative to a first laser position measuring system (200) arranged on the first side of the workpiece; a second measurement of the position of a second edge part (120) of the work piece relative to a second laser postion measuring system arranged on the second side of the workpiece is also obtained; the first measurement will be added to the second measurement to form a measurement sum; the measurement sum will be subtracted from a known distance between said laser position measuring systems, the result thus indicating the width of said workpiece. |
