Design and testing of a low-cost electromyogram that uses a right leg driver circuit
- Resource Type
- Conference
- Authors
- Fortune, Benjamin C.; Stewart, Ashley; Hansenne, Eva; McKenzie, Lachlan; Chatfield, Logan; Pretty, Chris G.
- Source
- 2017 24th International Conference on Mechatronics and Machine Vision in Practice (M2VIP) Mechatronics and Machine Vision in Practice (M2VIP), 2017 24th International Conference on. :1-6 Nov, 2017
- Subject
- Computing and Processing
Robotics and Control Systems
Electromyography
Muscles
Electrodes
Electromagnetic interference
Signal to noise ratio
Ions
Legged locomotion
exoskeleton
electromyography
circuit
design
right leg driver
RLD
rehabilitation
- Language
This paper presents the design and testing of a low cost ($30 unisolated, $75 isolated) electromyogram (EMG) circuit. The circuit is designed to utilise a Right Leg Driver (RLD) circuit: the RLD removes coupled electromagnetic interference from the subject. The benefit inherent with the use of the RLD is that it removes interference in real time, without attenuating the bio-potential signal. The circuit has been successfully tested to record bio-potential signals from multiple able-bodied subjects. A signal recorded from one subject's bicep brachii during an isometric contraction had a SNR of 57.8 dB.