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

Figure 6

Characteristics of the grip force sensor determined in a force sweep from zero to 800 N for both, before (blue) and after (red) 800 N long-term load: transfer function, absolute nonlinearity, sensitivity, absolute resolution, and absolute nonrepeatability. Except for the transfer function, all characteristics are visualized as a function of a maximum force range, on which the characterization is based. Depending on the required force range for a specific application, the characteristics can be read off.