最近读了《计量技术》1978年第三期张彦同志写的《对内径百分表90°杠杆引起的示值误差分析》一文。觉得文章试图建立杠杆机构原始误差和内径表示值误差间的关系,指导调修工作,这一点是很必要的。但又感到文中对杠杆机构的简化、示值误差的计算以及由此产生的结论,有不够情确之处。故提出以下不成熟的看法,同作者讨论。 Recently read “measurement technology” 1978 third period Comrade Zhang Yan wrote “on the dial indicator 90 ° lever error analysis of indication,” a text. I think it is necessary to establish the relationship between the original error of the lever mechanism and the error of the inner diameter to guide the adjustment work. However, I feel that there is not enough certainty about the simplification of the leverage mechanism, the calculation of the indication error and the resulting conclusions. It is proposed the following immature views, with the author to discuss.