▎ 摘　　要

NOVELTY - This utility model relates to multilayer graphene stain laser detection device, comprising the machine frame and set with the scanning mechanism on machine frame of the controller, operating mechanism, a photographing mechanism, image processor, sealing cover, blower, and vacuumizing, using polymerizable better and laser for scanning one by one with stronger precision and anti-wrong character, laser sensor collecting laser signal, has control unit analysis, the light-tight characteristics can convenient testing, to prevent interference with the other light but influence measuring result, two by two or two more than two of laser generator, generating the different laser, by scanning, the first time the flat laser, can comprise the faster scan speed, at the same time can prevent reducing the scanning time, the second one is scan position for scanning the first problem is found by locating, the location and, using a cylindrical laser by scanning, can implement for precise location, avoid repeat location and repeat.