Application

What does measuring straightness mean?

A line is a straight curve. We measure the "not straightness" or the curvature of something which looks straight from a distance. In engineering applications we measure and correct the straightness of machine components.

Typically we are dealing with a mixture of all of following deviations: Horizontal curvature, vertical curvature, Roll, Screw and Surface discontinuities. Depending on the measurement method chosen these deviations will be more or less visible and more or less separable. The chosen mechanical adaptation is often as important as the measurement technology. We are looking for practical methods and procedures for measuring, correcting and documenting the “not straightness” of long machine components like linear guides.

Examples of Straightness Measurement: