Patent ID: 7593117
Filing Date: 2009-09-22
Classification: G01B,G03H

Abstract:
1. A system for measuring a workpiece comprising: a plurality of measurement modules for being placed substantially around a circumference of said workpiece, wherein each of said measurement modules comprises at least one galvanometer, at least one mirror, and at least one optical displacement sensor, wherein said optical displacement sensors are for emitting a plurality of light beams towards said at least one mirror, said at least one mirror is for reflecting the emitted light beams onto the workpiece, said workpiece is for reflecting the mirror reflected light beams back towards said at least one mirror, said at least one mirror is for reflecting the workpiece reflected light beams towards said optical displacement sensors, and said optical displacement sensors are for receiving the mirror reflected light beams, wherein said measurement modules are for determining a measurement of said circumference of said workpiece based on said reflected light beams; an electronic control module, wherein said electronic module comprises at least one computer which is adapted to control said galvanometers and said at least one mirror, and is also adapted to communicate with said displacement sensors; and a moveable frame to which said measurement modules are attached, wherein said moveable frame is adapted to allow said measurement modules to be moved relative to the workpiece.