Contact and non-contact profilometry is a measuring technique used to reconstruct the geometry of an object. Traditionally, contact profilometry has used a stylus with a force\/position sensor mounted on top to measure variations in the surface of the object. However, the use of laser scanners is becoming increasingly popular for the dimensional analysis of object geometry. <\/p>\n\n
This technique uses a laser beam projected onto the object to be measured and allows the profile to be reconstructed quickly and accurately.<\/p>\n\n
Laser scanning systems have been used to generate three-dimensional models of objects, and the technology is becoming increasingly common in digital reconstruction. A system based on laser scanners can acquire detailed information on objects, extending the limits of traditional techniques such as contact profilometry. <\/p>\n\n
The measuring process can be automated and gives accurate results even if the object to be measured is complex and awkward to handle manually.<\/p>\n\n
The use of laser scanners in reverse engineering offers great advantages over conventional instruments, such as the possibility of reconstructing complex shapes as well as regular ones, for example holes and slots, but also irregular surfaces such as curves and styling surfaces; consequently, there is less need to do without certain complex geometric features that would take a very long time to calculate using traditional mathematical methods.<\/p>\n\n\n\n