Page 330 - Control Theory in Biomedical Engineering
P. 330

80


                                              60

                                   80% PWM    40  20  Time (s)






                                              0
                                     1.5  1  0.5  0  Displacement (cm)

                                                        6.0 V
                                              120

                                              100
                                                        6.5 V
                                              80
                                   90% PWM    60  Time (s)


                                              40
                                                        7.0 V
                                              20

                                              0
                                                        7.5 V
                                      6  4  2  0
                                               Displacement (cm)
                                                           PWM.
                                              120
                                                           various
                                              100

                                              80           under
                                   100% PWM   60  40  Time (s)  tests



                                                           Displacement
                                              20
                                              0
                                      3  2  1  0  Displacement (cm)

                                                           16
                                                           Fig.
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