Open AccessDesign Considerations for Improved Noise Rejection in Surface EMG Systems
Author(s) -
Eduardo Rubio,
Omar Gutiérrez-Navarro,
Ivonne Bazán Trujillo
Publication year - 2019
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.b2922.078219
Subject(s) - noise (video) , instrumentation amplifier , converters , electronic engineering , instrumentation (computer programming) , signal (programming language) , amplifier , interference (communication) , computer science , power (physics) , electrical engineering , front and back ends , engineering , physics , operational amplifier , cmos , voltage , artificial intelligence , channel (broadcasting) , quantum mechanics , image (mathematics) , programming language , operating system
Bioelectric signals are distorted by unwanted electric noise interference. This paper focuses on techniques that can be applied to surface electromyographic systems design to improve the signal-to-noise ratio. Three case studies are presented in this manuscript: Effects of the front-end instrumentation amplifier gain, use of dc-dc converters for single-supply operation, and dedicated hardware for 60 Hz power line noise rejection. Results show that the quality of the signal is highly improved when the suggested techniques are applied.