METHOD FOR MEASURING OUT-OFF-ROUNDNESS DEGREE Russian patent published in 2003 - IPC

FIELD: measuring processes and equipment. SUBSTANCE: method is realized due to using optical base created by means of optical cylinder whose one guiding circle is reference (5) and other (3) is formed by means of optical finder (2) rotating on tie rod (1) relative to measured article. Axis of optical finder passes through respective points of reference circle applied onto screen (4) arranged on side of article opposite relative to tie rod. Radiuses-vectors of measured article arranged inside measurement base are determined as sum of radius of reference circle and value measured from measurement base until points marked beforehand onto surface of body of revolution. Radiuses-vectors of body of revolution arranged outside measurement base are determined as difference between radius of reference circle and value measured from measurement base until points marked out beforehand onto surface of body of revolution. EFFECT: enhanced accuracy of measurement. 2 cl, 3 dwg