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所谓不等臂天平,即天平两臂的长度不等.如果仍按等臂,将待测物体放在天平左盘,将砝码放在右盘,待天平平衡后,右盘中的砝码的质量并不等于左盘中物体的质量.那么,采用什么样的方法使用不等臂天平,才能消除或减小测量误差呢?现分析讨论如下. 一、不等臂天平的测量误差设天平横梁左、右两臂长度分别为L1、L2,待测物体质量为M,当待测物
The so-called inequality arm scale, that is, the length of the two arms of the balance is not equal. If you still press the arm, place the object to be measured on the left plate of the balance, place the weight on the right plate, and wait for the balance to balance the weight of the right plate. The quality is not equal to the mass of the object in the left panel. Then, what kind of method is used to use the unequal arm balance to eliminate or reduce the measurement error? The analysis is discussed as follows. I. Measurement error of the inequality scale The lengths of the left and right arms of the beam are L1 and L2 respectively, and the mass of the object to be measured is M, when the object to be measured is