Title :
An artefact suppressing fast-recovery myoelectric amplifier
Author_Institution :
Dept. of Signal & Systems, Twente Univ., Enschede, Netherlands
fDate :
6/1/1999 12:00:00 AM
Abstract :
An amplifier for recording myoelectric signals using surface electrodes has been developed. The special features are suppression of stimulation artefacts and motion artefacts from electrodes. It is designed for recording of myoelectric signals from a muscle that is being stimulated with short impulses. The artifact suppression is achieved by using fast-recovery instrumentation amplifiers and having a nonlinear feedback loop for automatic compensation of changes in DC-offset.
Keywords :
amplifiers; biomedical electrodes; electromyography; medical signal processing; DC-offset changes; artefact suppressing fast-recovery myoelectric amplifier; automatic compensation; muscle stimulation; myoelectric signals recording; nonlinear feedback loop; short impulses; spinal cord lesion people; surface electrodes; Cutoff frequency; Electrodes; Electromyography; Feedback loop; Filters; Muscles; Pulse amplifiers; Resistors; Signal design; Switches; Artifacts; Electromyography; Equipment Design; Feedback; Humans; Signal Processing, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
