
Human Peripheral Nervous System Controlling Robots
■
295
0.6
0.5
0.4
0.3
0.2
0.1
–0.1
0
05
Position tracker control
Position tracker control
Position tracker control
EMG control
X-axis position (m)X-axis velocity (m/s)
X-axis acceleration (m/sec
2
)
EMG control
EMG control
10 15
0510
Time (s)
Time (s) Time (s)
Time (s)
15 0 5 10 15
7.5 8 8.5 9 9.5 10
2 150
100
50
0
–50
–100
–150
1.5
1
0.5
–0.5
–1
–1.5
0
Figure 11.7 Comparison of robot performance using EMG-based control and a
position tracker. Top left figure: The robot end-effector position at the X robot
axis. Top right figure: a detailed view of the robot end-effector position. Control
using a position tracker proved to be very jerky, ...