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|Title: ||Myoelectric signal based lower arm prosthesis|
|Authors: ||Safuan Mohd|
|Advisors: ||R. Nagarajan, Prof. Dr (Advisor)|
|Keywords: ||Artificial joints|
Artificial arms -- Control
|Issue Date: ||Mar-2008 |
|Publisher: ||Universiti Malaysia Perlis|
|Department: ||School of Mechatronic Engineering|
|Abstract: ||This study is mainly on the control of the stepper motor by using the electromyographic
(EMG) signals. When a muscle is contracted, a feeble electric potential is produced.
Surface electrodes can sense this muscle activity potential when placed over the muscle.
The signal detected by the electrodes is amplified, processed, and then used as input to
the Basic Stamp Micro Controller. This Basic Stamp is a type of microcontroller which
gives an output to the stepper motor driver in accordance to the processed EMG input
signals. Then the driver will give an output to control the stepper motor. This stepper
motor will be acting as aluminum mechanical limb
The Electromyographic signal is a very small signal and because of that, amplifying this
signal is important before we could process it. This signal will be separated into two
range values to control the motor in two directions, clockwise and counter clockwise.
When we raise the hand, the muscle will produce EMG signal with certain magnitude and
then the mechanical arm raises (clockwise direction of the stepper motor) just like our
hand. After that, when we lower the hand and the muscle will produce EMG signal with
certain magnitude and the mechanical arm also follows (counter clockwise direction of
the stepper motor.).
The project also presents some experimental details in terms of controlling the stepper
motor using the Basic Stamp Microcontroller.|
|Description: ||Access is limited to UniMAP community.|
|Appears in Collections:||School of Mechatronic Engineering (FYP) |
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