A simple, inexpensive, and accurate way to measure relative segmental rotations resulting from torsional loadings locally is described. To measure these rotations, we fabricated a planar spatial linkage (open-loop kinematic chain) requiring only one rotational displacement transducer. This paper describes this device, defines its kinematics, and examines its accuracy.

Issue Section:
Technical Briefs
Topics:
Displacement, Kinematic chains, Kinematics, Linkages, Transducers
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