?????ú±ê±ê×???×é???¨ISO?????ú?????¤???±?á?¨IEC?????ú??·¨??????×é???¨OIML?????ú?????????¨BIPM?????ú???????í?????????í?????á?¨IUPAP?????ú???????§?????????§?????á?¨IUPC?????°?ú?????????§?????á?¨IFCC??7???ú??×é????1993?ê?????????ú???¨???????§?ù±??????·?¨International Vocabulary of Basic and General Terms in Metrology??(?????ò????VIM?·)?????ú?ú???????????à??????1998?ê9??·?????JJF1001??1998???¨???????????°?¨???·?¨?????ò????JJF?·?ú????????????·???????????????±???????????×??·?????÷?????÷??×??·????×??·???????ù???·?????¨???????÷??±??????????????????????á???????????????±±???×???????????

????1?? ×??·??

????????????????accuracy(?????????????????÷?????á???????????????????÷???????????±?????????á???±??±í???????á????±??????????????????????????±???????????÷?±???¨???????????÷???????ü???????????????ù????????????×??·???ù???????¨??????????·??¨???????ò????×??·?????ó?????ó???????????·?¨?????????????í???????????????¨?????¨?????????ó???¨?????????á????±??????????????????????????????¨??????????×??·???ò???????ù???¨??????????????±í?????????????????????????÷???????ó??????7??8mA???????¨????±í??????????????????7??8mA???????????????????????????÷??×??·??????7??8mA?ò????7??8mA???ò??????????7??8mA???±???????????÷???????ó???¨fiducial error of a measuring instrument?????ó??0??01?±?¨1???????ù?ù°????????????÷??±ê×??ò?ì?¨???????????÷??×??·????1??????????×??·????1??????·?×??·????1????×?????1????????????

????2?? ×??·??????

????????VIM?·?°??JJF?·????×??·???????¨accuracy class???????????÷·??????¨?????????ó?????ó??±????????¨?????????????????÷????±?????±??? ???¨order???????¨class?????????§??????????????????????????????·?JJG1027??91???????ó???°???????í?·???????÷?·??????????°????????·?¨???ó???ù??·?????????????????°????????÷?????ó???ó???ù??·????????¨???????·?¨?????¨?????????ó?????¨????°ü?¨?÷?????????ó???¨????????????JJF?·?????????????é??·?????·?????±ê×???????·?????·???????±ê×????????????ò??·?????????????????±í????±????????ó???¨?à??×??ó???í?ó????????????·????????????????????÷·?????????±??ò??±??????¨????×??????????÷??×??·????

????3?? ×??·?????¨??????

????°?×??·?????????????ó???ò?????ó???ò???·?¨???????í?ó?????????????÷???ü?????????????????????¨?????÷?????????????ó?????à???ó????±ê×????·?¨??u?????????·?¨??U??U?????????????÷???????????????÷???????ó??p??×??ó???í?ó?????????ó?????????????????±???ù??????????????????????????????????????×??·????????????????×???????????????×??·????7??8mA??????????7??8mA???ó??????°ü???ò×?k=2?????????·?¨????????k=3?????????·?¨??????×??ó???í?ó???????????ó?????ù???÷?·???ò???????????????¨???????????????÷???ü?????????ì?????????ò±??????÷????????????????????????????????????×??·????

?????±?°?ó??×??·?????????é????????±é????????×?????????????±?????????????????×??·???????????¨??????????·¨?????????é???????×???????????????§??