Study On Straightess Testing System Of Super-Length Guideway

In this paper, the author discussed the design of comprehensive system, instrument and measurement in order to meet the need of the straightness measurement of super-length guideway testing and alignment system, development of super-length orbit straightness measurement system in detail. At first, the author analyzed some chief factors such as light beam drift and atmospheric turbulence that affect the precision of the laser collimation in brief. Then, the author studied the plan of the laser collimation generating nondiffracting beam and automatic level system with high precision. At last, the author completed the measurement of the straightness guideway by using CCD (Charge Coupled Device) as the receiver and computer imaging processing. The theory analysis and calculation show the project adopted in this paper improves the collimation precision of the beam and the accuracy of measurement greatly.