Electronic apparatus for checking the linear dimensions of mechanical workpieces

摘要

Apparatus for checking diameters of workpieces in a broad range of operation, including two arms moving with a scissorwise movement. The two arms carry relevant measuring heads and are coupled to coaxial shafts. A rotary transducer has two moving elements coupled to the coaxial shafts. A processing and control circuit includes pre-selectors for zero-setting the apparatus with reference to different diameters to be checked. The processing and control circuit provides a measurement signal depending on the output signals of the measuring heads and of the rotary transducer.