| Flexible coordinate measuring system based on multi-lateration laser tracking interferometery principle is a effective method to detect 3-D coordinate of large tool's eharacteristic points, and possible to get high accuracy. The paper describe a method using fuur beam laser tracking interferometer, so we can use the system's hardware redundant ability to accomplish system self-calibration and losing information recover. This method is different from triangulation method and spherica approach in depending on the angle detection, it just need length detecting information to determine 3-D coordinate. |
