天平分度值变化的原因及调修天平经过一段时间使用后，就会出现分度值偏大或偏小、空载与全载或左盘与右盘的分度值相差过大等不正常现象。为了保证天平精度，有必要进行重新调整，变化的原因及调整方法有以下几个方面。１．由于长期使用，刀刃磨损变钝，或由于使用不慎而... Causes of balance index changes and repair balance after a period of use, there will be large or small indexing value, no-load and full load or left and right disc index value difference is too large and not normal phenomenon. In order to ensure the accuracy of the balance, it is necessary to readjust it. The reasons for the changes and the methods of adjustment are as follows. 1. Due to long-term use, blade wear blunt, or due to careless use ...