Measurement method for two opposite surfaces - on plate-shaped objects for their flatness, parallelism and spacing

摘要

Two reference planes parallel to each other are produced near the surfaces to be measured, one of them at any three points at the same distances from a surface to be measured. The distance of other points on the tested surfaces from the reference planes in measured and evaluated. The device comprises a bracket with fastening elements and a ball joint with a U-shaped support whose side walls are provided with parallel fixing plates for a laser light source, which have a circular hollow with conical lateral surface and magnets for the base plate holding.