Springing back

摘要

Springs that are used for the application of defined forces or travels must have characteristic force-deformation properties subject to an exacting tolerance. Two test-specific quantities are decisive for the precision test of a spring: the measured average values and the variations of the measured value. Both are usually subject to strict requirements; for statistical tests, acceptance or rejection of the entire test batch depends on those two test-specific quantities. To get reliable statements about the spring quality, the test system has to be optimised to comply with the technical prerequisites for spring tests.