正常天平的中央刀口到两端刀口的距离总有微小的差别,测量时会出现微小的误差.如果两臂长度相差悬殊,则为不等臂天平,这种天平虽然底板可以调水平、横梁也能调节成水平平衡,但测量时却有较大的误差. 例题利用一架不等臂天平和与它配套 There is always a slight difference between the center knife edge of the normal balance and the knife edge at both ends. There will be a slight error in the measurement. If the length of the two arms differs greatly, it is an unequal arm balance. Although the floor can adjust the level, the beam also Can be adjusted to level balance, but there is a large error in the measurement. Example uses an unequal arm balance and its matching