Table 1.

Experiment 1 (the weight is 0 kg).

Loading Force/N	0	21.238	166.261	196.797	207.097	213.386
Output Force 1/N	0.123	9.844	81.831	96.967	102.166	105.273
Output Force 2/N	0	11.168	82.192	97.25	102.394	105.469