Design and Evaluation of a Fiber-Optic Grip Force Sensor with Compliant 3D-Printable Structure for (f)MRI Applications

Table 1

Complete grip force sensor characteristics for the force ranges 800 N and 500 N.

Application	Sensitivity (mV/N)	Nonlinearity (LS BFSL) (%)	Nonrepeatability (%)	Hysteresis (%)	Resolution (N)	Accuracy (RMS) (%)
800 N	0.843 ± 0.003	10.33 ± 0.10	0.76 ± 0.38	0.72 ± 0.38	2.219 ± 0.008	5.99
500 N	0.978 ± 0.005	2.37 ± 0.22	1.02 ± 0.50	0.85 ± 0.09	1.911 ± 0.009	1.57