Fig. 9From: Interaction force estimation on a built-in position sensor for an electrostatic visuo-haptic displayResults of open-loop (a) and closed-loop (b) control for several target-force conditions: (1) 0.3 N square, (2) 0.6 N square, (3) 0.3 N single-sided sine, and (4) 0.6 N single-sided sineBack to article page