Roll until the end of the page, drag and drop the thimble of the bigger visualization in vertical to fine approximation or the thimble of the smaller visualization in the horizontal to fast avance.
The resolution of the micrometer is obtained from the interaction between the 'micrometric screw', that is polished the spindle, and the screw of 'internal bushing'. Usually, in the micrometer in millimeter mode, the micrometric screw it has a input and its step is of 0.50mm (fifty hundredths of a millimeter, five tenths of a millimeter or half millimeter). This means that a complete turn (360°) of thimble, and the spindle, will produce an advance equivalent to the step (fifty hundredths of a millimeter), two complete turns will produce an advance of 1.00mm (one millimeter).
The resolution of this instrument is obtained because of the thimble perimeter, where it's minted fifty equidistant divisions. A complete turn will produce an advance of 0.50mm and the fifty divisions pass by the sleeve line. Thus, each division of thimble 'shows' the advance of 0.01mm (a hundredth of a millimeter), of spindle (resolution).
This simulator is a replic of the metrology instrument used in the metal mechanical area. In it's use, the value that appears between parentheses is obtained by interpolation. The human vision doesn't have enought accuracy to determine this meausure.
Frame, sleeve, thimble, reading line, fuse, meause faces, lock nut and ratchet are some of the components of the micrometer <- to know better them clic here.