How do geometry lasers work?
Systems consist of a laser, targets and data display. Lasers emit flat planes and/or lines that are aligned to a machine’s datum or to gravity (level). They provide a reference to measure other points using position-sensitive laser targets. The data display shows the deviations and provides alignment correction instructions in real time. Q: What geometric characteristics are measurable? A: Straightness, perpendicularity, flatness, parallelism and concentricity. Applications include: Roll shaft shoulders, Roll shaft parallelism, Weld Box location, Cutoff centering, Drive coupling and Sheave alignment. Q: How precise is laser measurement? A: The accuracy is within .00004″ in 5′ depending on the laser . This is equivalent to slicing the thickness of a sheet of paper 75 times. In Tube / Pipe mill environment laser alignments are performed to 300 foot overall distances in one setup with a repeatable accuracy reading to + / – 0.001″. Q: Why use a laser system? Optical methods seem to work we
