| 摘要 |
The device has a cylindrical handle (2) and a measuring head (3) containing a cylindrical support element for two diametrica opposite test parts (31) at the surface or tooth to be measured. Radial movement of the test parts due to irregularities in the surface displaces a drive pin (33) arranged perpendicularly to the test parts in a central bore of the support element. The pin displacement is displayed using measurement callipers (5). The measuring head is arranged in the free end of an inner cylinder (4) fixed rigidly to the handle. The axial movement of measurement callipers against the cylindrical surface or tooth is measured using path callipers (7). A third cylinder (6) in a cylindrical chamber (21) formed between the handle and the inner cylinder slides against a spring (61) force, so that the displacement between the inner cylinder and the third cylinder can be measured using the path callipers. |
