I-three-coordinate, ebizwa nangokuthi i-dimension, ingumshini wokulinganisa ukunemba, okubizwa ngokuthi i-CMM.Kuyithuluzi lokulinganisa ukunemba elisebenzayo elakhiwe ngeminyaka yawo-1960.Kwavela ngenxa yobuchwepheshe obuphezulu bemishini yamathuluzi omshini othomathikhi kanye namathuluzi omshini we-CNC, kanye nesidingo semishini yokulinganisa esheshayo nethembekile yokucubungula izingxenye eziningi eziyinkimbinkimbi.

Njengamanje, ukulinganisa okudidiyelwe okuthathu sekusetshenziswe kabanzi ezimbonini ezahlukahlukene ezifana nokukhiqiza imishini, imboni yezimoto, imboni yezogesi, imboni ye-aerospace, njll., futhi isiphenduke imishini yokulinganisa enembayo ebaluleke kakhulu yokuhlolwa kwezimboni zesimanje nokulawulwa kwekhwalithi.Kumagaji ethu akhethekile angajwayelekile, ukulinganisa okudidiyelwe okuthathu kuyithuluzi lokuhlola elibalulekile.Ngemva kokuthola imidwebo yomkhiqizo wekhasimende futhi siklame uhlelo lwegeji oluhlangabezana nezidingo ezifanele zomkhiqizo futhi ikhasimende lanelisekile, kuyadingeka.Qala izinyathelo zokucubungula esigabeni sakamuva, khona-ke sidinga ukusebenzisa isilinganiso sethu sokuxhumanisa ezintathu, ngoba ukunemba kwedivayisi ngokwayo kuphezulu kakhulu, ngakho-ke yisebenzise ukuhlola ukunemba kwengxenye ngayinye yegeji yethu, ukuze igeji ngokwayo ibe ngaphezulu. iqinisekisa ukunemba kwamathuluzi ethu okuhlola.Ngokwesibonelo, ezinye isikhundla gage, flatness kanye profile yakhe zihlanganisa izingxenye ezithile zemoto.Sonke singathola usayizi wangempela ngokuthola isilinganiso sokuxhumanisa