Research On Surface Roughness Measuring Instrument Model T2000 Of Improvement On Computer

By lots of national and international standards have been renewed, many of out-of-date surface roughness measuring instrument can not meet needs for the new standards, but the part of mechanical drive device, sensor, drive box of measurements instrument is still useful, these can meet needs for the praticial measuring. If these measuring instruments can be improved on computer, add new some function, fulfill measuring high precial measuring, multil-parameters evaluating, so that save a lot of money.This paper utilizes measuring technology, electronic technology and computer technology, and HOMMEL T2000 surface roughness measuring instrument is improved on computer. The overall structure work plan of improvement on computer is put forward on the paper, fulfill the part of mechanical drive device, sensor, drive box of HOMMEL T2000 surface roughness measuring instrument; remove electric part of measuring instrument. Microcomputer is used as control precessing computer. Then the hardware structure and software program of surface roughness measuring instrument are designed. By VC++ programming measuring interface software design, data acquisition programming design, data processing programming design. After instrument transformation, throught experimental calibrations, accuracy measuring for the whole transformation measurement system and the degree of uncertainty analysis are carried out. Compared with Taylor S4C model profilometer, workkpiece measurement comparison experiments have been done.The transformation surface roughness measuring instrument has higher accuracy, friendly operation interface, and the measurement program is convenient to use. The properties of measuring instrument can compete with other similar products at home and abroad. The transformation surface roughness measuring instrument has been applied to production practice. Satisfactory results are obtained in practical application.