测量次数 | 系统测值/10−3 mm | 绝对误差/10−3 mm | 相对误差/% |
1 | 132.12 | 0.02 | 0.000151 |
2 | 131.46 | 0.64 | 0.004845 |
3 | 132.94 | 0.84 | 0.006359 |
4 | 131.92 | 0.18 | 0.001363 |
5 | 131.36 | 0.74 | 0.005602 |
6 | 132.06 | 0.04 | 0.000303 |
7 | 131.36 | 0.74 | 0.005602 |
8 | 131.66 | 0.44 | 0.003331 |
9 | 132.46 | 0.36 | 0.002725 |
10 | 131.96 | 0.14 | 0.00106 |
平均值 | 131.93 |
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标准差σ | 0.505 |
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