LAP measurement systems measure outer diameter, out-of-roundness, length and straightness of tubes.

They may be used for longitudinal seam welded, spiral welded or seamless tubes. Measurement of diameter in two or three axes also yields precise ovality readings. The result of this is that a greater percentage of the tubes being produced meet the specification that are required by the customers. Producing to tighter specifications also increases the yield ratio. LAP measurement systems for final inspection of tubes before shipment provide essential data for quality assurance.