Th is article introduces an Intelligent ax ial movement mon ito r developed by sing le chip techno logy, expounds its bas ic wo rk ing pr inciple, inc lud ingm easurem ent o f the output s igna l o f the senso r, input samp ling c ircuit, outpu t of the standard signa,l keyboa rd display ing system and e tc, and in the end, g ives a princip le draw ing o f the partial c ircu it and softw are flow ing draw ing .