在天平修理过程中,都要经过调整臂差这一步。一般的调整方法是,先把悬挂系统摘去,拨动臂差螺丝,然后再看空秤与全载的平衡位置。经过反复多次调整,才能达到要求。这样比较麻烦、费事。我们根据对天平每调整一次臂差螺丝,它的空秤位置变化量与全载平衡位置变化量是成比例的这一规律,通过计算,可以求得空秤与 In the balance repair process, have to go through this step to adjust the arm difference. The general method of adjustment is to first pick the suspension system, dial the arm difference screw, and then look at the empty balance and full load balance position. After repeated adjustments in order to meet the requirements. This is more troublesome and costly. We adjust the arm according to the balance arm screws, its empty balance position changes and full load balance position change is proportional to the law, through the calculation, we can find the empty scale and