检验平板检测(ce)重合(he)度(du)(du)编辑(ji)测(ce)量不确定度(du)(du)分为三种 用(yong)水平仪或自准直仪检定平板平面(mian)度(du)(du)时，是按规定截面(mian)和检定点读取数据(ju)，

　　通过数(shu)据处理获(huo)取平(ping)(ping)面(mian)(mian)(mian)(mian)度(du)误差(cha)(cha)值(zhi)(zhi)。由(you)(you)于采用(yong)了多余观测，必(bi)然产生(sheng)重(zhong)(zhong)(zhong)复(fu)(fu)(fu)检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)点(dian)(dian)(dian)(dian)。所谓(wei)重(zhong)(zhong)(zhong)复(fu)(fu)(fu)检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)点(dian)(dian)(dian)(dian)是受(shou)检(jian)(jian)(jian)(jian)(jian)稳各截面(mian)(mian)(mian)(mian)的(de)(de)(de)(de)交(jiao)汇检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)点(dian)(dian)(dian)(dian)，如平(ping)(ping)板中(zhong)点(dian)(dian)(dian)(dian)是两(liang)条对角线(xian)、两(liang)条中(zhong)线(xian)4个(ge)截面(mian)(mian)(mian)(mian)的(de)(de)(de)(de)交(jiao)汇检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)点(dian)(dian)(dian)(dian)，这一点(dian)(dian)(dian)(dian)即(ji)为重(zhong)(zhong)(zhong)复(fu)(fu)(fu)检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)点(dian)(dian)(dian)(dian)。从理论(lun)上讲，重(zhong)(zhong)(zhong)复(fu)(fu)(fu)检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)点(dian)(dian)(dian)(dian)的(de)(de)(de)(de)平(ping)(ping)面(mian)(mian)(mian)(mian)度(du)值(zhi)(zhi)是不(bu)变的(de)(de)(de)(de)，即(ji)不(bu)同截面(mian)(mian)(mian)(mian)检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)到(dao)这一点(dian)(dian)(dian)(dian)平(ping)(ping)面(mian)(mian)(mian)(mian)度(du)值(zhi)(zhi)应(ying)相同。但是由(you)(you)于各个(ge)截面(mian)(mian)(mian)(mian)检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)时受(shou)到(dao)基准、环境、仪器(qi)和操作等因素(su)的(de)(de)(de)(de)影响，不(bu)可避免(mian)地带来检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)误差(cha)(cha)，致使(shi)重(zhong)(zhong)(zhong)复(fu)(fu)(fu)检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)点(dian)(dian)(dian)(dian)所得平(ping)(ping)面(mian)(mian)(mian)(mian)度(du)偏差(cha)(cha)值(zhi)(zhi)不(bu)重(zhong)(zhong)(zhong)合(he)。通常把不(bu)同截面(mian)(mian)(mian)(mian)重(zhong)(zhong)(zhong)复(fu)(fu)(fu)检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)点(dian)(dian)(dian)(dian)平(ping)(ping)面(mian)(mian)(mian)(mian)度(du)偏差(cha)(cha)值(zhi)(zhi)的(de)(de)(de)(de)差(cha)(cha)值(zhi)(zhi)值(zhi)(zhi)称为重(zhong)(zhong)(zhong)复(fu)(fu)(fu)检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)点(dian)(dian)(dian)(dian)平(ping)(ping)面(mian)(mian)(mian)(mian)度(du)的(de)(de)(de)(de)重(zhong)(zhong)(zhong)合(he)度(du)，简称重(zhong)(zhong)(zhong)合(he)度(du)。显然，重(zhong)(zhong)(zhong)合(he)度(du)表明重(zhong)(zhong)(zhong)复(fu)(fu)(fu)检(jian)(jian)(jian)(jian)(jian)定(ding)(ding)点(dian)(dian)(dian)(dian)(重(zhong)(zhong)(zhong)复(fu)(fu)(fu)点(dian)(dian)(dian)(dian))的(de)(de)(de)(de)平(ping)(ping)面(mian)(mian)(mian)(mian)度(du)偏差(cha)(cha)值(zhi)(zhi)符合(he)程度(du)(重(zhong)(zhong)(zhong)复(fu)(fu)(fu)误差(cha)(cha))