| Abstract: |
Laser trackers are now the tool of choice for large scale coordinate metrology. They are transportable allowing reconfigurable production facilities at a lower capital cost than large CMMs. Trackers now include absolute distance measuring (ADM) capability in addition to traditional (HeNe) interferometry as the ranging sensor and some systems can use the passive reflectance of the workpiece instead of cooperative targets. Recently, a new standard, ASME B89.4.19 Performance Evaluation of Laser Based Spherical Coordinate Measurement Systems, has standardized performance specifications and testing procedures. This talk will discuss the ASME standard and include several test results illustrating laser tracker capabilities. |
