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　　多米熱熔鉆床廠家:什(shen)么(me)是尺寸公(gong)差(cha)?什(shen)么(me)是幾何(he)公(gong)差(cha)?二者到底有什(shen)么(me)區別?

      尺(chi)寸(cun)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)與(yu)幾(ji)何(he)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)管(guan)控(kong)(kong)的(de)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)不(bu)(bu)同(tong)，尺(chi)寸(cun)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)管(guan)控(kong)(kong)的(de)是長(chang)度(du)(du)，幾(ji)何(he)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)管(guan)控(kong)(kong)的(de)則是形(xing)狀(zhuang)及(ji)(ji)位(wei)置關系(xi)。因此，尺(chi)寸(cun)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)和幾(ji)何(he)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)并無優劣之(zhi)分，結合(he)使(shi)用(yong)這兩種(zhong)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)，可(ke)(ke)以(yi)實現高(gao)效的(de)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)表(biao)示。此外(wai)，尺(chi)寸(cun)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)及(ji)(ji)幾(ji)何(he)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)分別以(yi)不(bu)(bu)同(tong)的(de)測(ce)(ce)(ce)量(liang)設備及(ji)(ji)檢測(ce)(ce)(ce)方法測(ce)(ce)(ce)量(liang)。例(li)如，尺(chi)寸(cun)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)會使(shi)用(yong)油標、卡尺(chi)、千分尺(chi)等測(ce)(ce)(ce)量(liang)兩點間的(de)距離(li)，但是幾(ji)何(he)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)會利用(yong)真(zhen)圓(yuan)度(du)(du)測(ce)(ce)(ce)量(liang)儀。三坐標測(ce)(ce)(ce)量(liang)儀檢測(ce)(ce)(ce)真(zhen)圓(yuan)度(du)(du)及(ji)(ji)中心軸的(de)位(wei)置，根(gen)據(ju)指定的(de)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)范圍可(ke)(ke)能會被(bei)判定為(wei)不(bu)(bu)合(he)格(ge)。言之(zhi)，根(gen)據(ju)尺(chi)寸(cun)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)會被(bei)判定為(wei)合(he)格(ge)，根(gen)據(ju)幾(ji)何(he)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)則不(bu)(bu)合(he)格(ge)。因此，我們可(ke)(ke)以(yi)認(ren)為(wei)尺(chi)寸(cun)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)管(guan)控(kong)(kong)與(yu)幾(ji)何(he)公(gong)(gong)(gong)(gong)(gong)(gong)(gong)差(cha)(cha)(cha)管(guan)控(kong)(kong)基本上不(bu)(bu)存在相關性。這種(zhong)思考方式就(jiu)是獨立(li)原則。