Extended Data Fig. 4: Experimental setup for initial curvature and twist characterizations.
From: Ultra-sensitive and resilient compliant strain gauges for soft machines
a, The characterization of initial torsion (and linear extension). b, The response to normal pressure. c, The characterization of initial curvature, where d represents the diameter of the PVC pipe used in the experiment. The inset shows the geometric relationship between the measured force, Fm and the force in the flexible connector, F (equal to Fmcosθ).
