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Table 3 Weight measurement precision evaluated by different indicators based on absolute (mean and standard deviation – SD), root mean square (RMS) and maximum (max.) errors.

From: An instrumented cylinder measuring pinch force and orientation

Theoretical
Mass tested (g) 100 200 300 400 500
Weight (N) 0.981 1.961 2.942 3.922 4.903
Empirical Weights
Mean (N) 0.991 1.982 2.968 3.948 4.924
SD (N) 0.014 0.015 0.025 0.030 0.031
Mean Error (N) 0.014 0.022 0.032 0.034 0.029
SD Error (N) 0.009 0.013 0.017 0.021 0.025
RMS Error (N) 0.017 0.026 0.036 0.039 0.038
Max Error (N) 0.035 0.057 0.088 0.082 0.165