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《理化检验-物理》编辑部 你们好！ 我是《理化检验-物理》杂志忠实的朋友.现有两个问题向你们请教:1.怎样确定测量仪器的精度(即仪器的选择)?例如某个长度尺寸为55±0.5mm,选什么样精度的量具比较合适?测量结果保留几位有效数字?再举个例子,规定某一产品的破坏荷重值为16.4kN,可以用分度值为0.2kN和0.5kN等多个量程,哪个更合适?2.测量数据如何记录?即怎样经济而有效地获得待测参数的真实值?
Physical and Chemical Testing - Physics Editorial Department Hello! I am a loyal friend of Physics and Chemistry - Physics magazine, and there are two questions to ask you: 1. How to determine the accuracy of the measuring instrument (ie, the instrument’s choice)? For example, if a certain length is 55 ± 0.5mm For example, the damage load value of a certain product is 16.4kN, which can be divided into several ranges such as 0.2kN and 0.5kN, and which one is more Appropriate? 2. How to record the measured data? That is, how to obtain the true value of the measured parameter economically and effectively?