Fig. 4
From: A video based feedback system for control of an active commutator during behavioral physiology
Calibration of DC motor rotation. Single rotation (a) Trajectory segments of both CW and CCW direction are aligned to the onset of motor drive (n = 15 for CW, n = 16 for CCW). Single rotation takes approximately 2.6 s. After rotation, angular positions approach to pre-rotation level. b The mean angular difference of pre (−165 to 0 ms) and post (3.7 to 4.7 s) is depicted. Both CW and CCW direction shows nearly zero, indicating no significant angular change after rotation. The error bar indicates mean ± s.d