Estimation of measurement uncertainty for length measurement with vernier calipers


Table 1. Results of measurement with analogue calipers

A B C D E F G H I J K
group G1 G3 G3 S1 G3 G1 G1 G2 S2 G1 G2
1 10.65 30.55 35.10 75.90 5.80 49.80 30.20 16.00 29.80 95.30 78.65
2 10.60 30.60 35.25 76.45 5.85 49.80 30.20 15.90 27.55 95.25 78.65
3 10.60 30.75 35.25 76.85 5.90 49.80 30.15 16.00 27.65 95.30 78.70
4 10.65 30.60 35.25 76.10 5.85 49.80 30.25 16.00 28.60 95.30 78.70
5 10.60 30.55 35.20 76.75 5.75 49.75 30.15 15.95 28.00 95.25 78.65
6 10.60 30.55 35.25 76.20 5.85 49.75 30.15 15.90 28.55 95.25 78.60
7 10.65 30.60 35.15 76.45 5.75 49.80 30.20 15.85 29.40 95.30 78.70
8 10.60 30.45 35.10 76.35 5.80 49.75 30.15 15.90 29.10 95.20 78.60
9 10.60 30.50 35.25 76.35 5.80 49.75 30.20 16.00 28.60 95.25 78.70
10 10.65 30.55 35.20 76.35 5.85 49.80 30.20 15.95 28.60 95.25 78.70
11 10.60 30.50 35.15 75.80 5.80 49.75 30.15 16.00 28.50 95.30 78.60
12 10.70 30.65 35.35 75.95 5.80 49.80 30.30 16.00 28.70 95.30 78.60
13 10.70 30.70 35.25 76.75 5.65 49.90 30.25 15.95 28.80 95.30 78.55
14 10.60 30.55 35.20 76.45 5.85 49.80 30.20 15.95 28.55 95.30 78.60
15 10.60 30.60 35.20 75.80 5.90 49.75 30.20 16.00 28.60 95.25 78.65
16 10.60 30.55 35.20 76.35 5.90 49.80 30.20 16.00 28.55 95.25 78.70
17 10.65 30.60 35.25 76.30 5.90 49.75 30.20 16.00 28.50 95.30 78.70
18 10.55 30.55 35.15 76.25 5.80 49.75 30.15 15.95 28.50 95.25 78.70
19 10.75 30.50 35.30 76.75 5.80 49.75 30.30 15.85 29.00 95.25 78.55
20 10.70 30.50 35.25 76.50 5.80 49.80 30.20 15.90 28.65 95.25 78.75
21 10.65 30.55 35.25 76.40 5.90 49.80 30.20 15.95 27.50 95.30 78.65
22 10.60 30.70 35.25 76.55 6.00 49.50 30.20 15.85 28.50 95.25 78.70
23 10.60 30.60 35.20 76.30 5.80 49.80 30.20 16.00 28.70 95.30 78.70
Mean value 10.63 30.58 35.22 76.34 5.83 49.77 30.20 15.95 28.56 95.27 78.66
standard deviation 0.05 0.07 0.06 0.29 0.07 0.07 0.04 0.05 0.53 0.03 0.05

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