轻敲位移是指在同一检定点上增压或减压,轻敲表壳后所引起的指针位置移动。轻敲表壳前后两次示值读数之差叫轻敲位移。 检查轻敲位移的目的是观察指针跳动或位移情况,了解各部位装配是否良好,各活动环节是否灵活。 轻敲位移产生的原因有: (l)游丝张大或缩小的程度不够或游丝两 Tapping displacement refers to the same test point on the pressure or decompression, tapping the case caused by the pointer position to move. Tapping the case before and after the difference between the two indication reading tapping displacement. The purpose of checking the tapping displacement is to observe the beat or displacement of the pointer, to know whether the assembly of each part is good and whether the activities are flexible. Tap the displacement of the reasons are: (l) gossamer Zhang large or narrow enough or gossamer two