Reference body for testing of optical or tactile measuring sensors for surface measurement of measuring objects, has outer form realized by ring body at axis to form inner cylinder, where body exhibits recess adjacent to inner cylinder

摘要

The reference body (1) has an outer form realized by a ring body (3) at a central axis (7) with defined inner dimension (d1) and outer dimension to form a defined inner cylinder (z1), where the ring body exhibits a recess (5) adjacent to the inner cylinder. The recess is arranged relative to a position along the center axis adjacent to an upper side (10) of the reference body. The ring body has a defined inner dimension different from the inner dimension of the axis to form another inner cylinder, where the reference body is made of metallic material.