SUPPLEMENTARY METROLOGY POSITION COORDINATES DETERMINATION SYSTEM FOR USE WITH A ROBOT

A supplementary metrology position coordinates determination system is provided for use with a robot. A first accuracy level defined as a robot accuracy (e.g., for controlling and sensing an end tool position of an end tool that is mounted proximate to a distal end of a movable arm configuration of the robot) is based on using position sensors (e.g., encoders) included in the robot. The supplementary metrology position coordinates determination system includes an imaging configuration, XY scale, image triggering portion and processing portion. One of the XY scale or imaging configuration is coupled to the movable arm configuration and the other is coupled to a stationary element (e.g., a frame above the robot). The imaging configuration acquires an image of the XY scale, which is utilized to determine metrology position coordinates that are indicative of the end tool position, with an accuracy level that is better than the robot accuracy.