“ the combination of the scanning unit and software make this a truly powerful tool for any modelling application , ” continued hunter "結(jié)合了掃描裝置和軟件使這是一個(gè)真正強(qiáng)大的工具,任何模特兒應(yīng)用" ,繼續(xù)狩獵
Using the time taken for each individual pulse to be returned and the known value of the speed of light the system can accurately calculate the distance of the feature from the scanning unit 使用時(shí)間為每個(gè)脈沖產(chǎn)生與已知值的光速該系統(tǒng)可以準(zhǔn)確地計(jì)算距離的特點(diǎn),從掃描單元
According to the high precision and rotation stability requirement of negative scan unit of cylinder photography typesetting machine , the three levels of cylindrical gears transmission separately , the two - stage cylindrical gears - worm drive , and the worm drive was chosen through calculating its velocity ratio , the checking transmission precision , carrying on the movement precision analysis to the sweep unit , and computing overall transmission error 摘要針對(duì)圓筒型照相排版機(jī)底片掃描裝置要求傳動(dòng)精度高,轉(zhuǎn)動(dòng)平穩(wěn)的特點(diǎn),分別選擇三級(jí)圓柱齒輪傳動(dòng),雙級(jí)圓柱齒輪蝸桿傳動(dòng),蝸桿傳動(dòng)3種常見的傳動(dòng)方式,計(jì)算其傳動(dòng)比,驗(yàn)算傳動(dòng)精度,對(duì)掃描裝置進(jìn)行運(yùn)動(dòng)精度分析,計(jì)算總體傳動(dòng)誤差。