{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/78693"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/78693","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Development of a Modular Electromyography System","abstract":"The design of current electromyography (EMG) systems focuses on specific applications. One design focuses on the use of bipolar electrodes to monitor a single muscle group. Several of these electrodes can then be used to monitor different muscles on the body simultaneously. Another design places many electrodes in an array on a limb or over a single muscle. One cannot be used for the other. Additionally the design of an EMG system must account for several sources of noise that can be orders of magnitude larger than the EMG signal itself. The goal of this work was to design an active EMG electrode that could be used as bipolar electrodes or in an electrode array. Two electrodes were designed and tested. One design only worked in bipolar and the other did not possess the desired noise immunity. Explanations to the behavior of the electrodes are presented along with possible modifications the the electrodes to achieve the desired performance.","abstract_html":"The design of current electromyography (EMG) systems focuses on specific applications. One design focuses on the use of bipolar electrodes to monitor a single muscle group. Several of these electrodes can then be used to monitor different muscles on the body simultaneously. Another design places many electrodes in an array on a limb or over a single muscle. One cannot be used for the other. Additionally the design of an EMG system must account for several sources of noise that can be orders of magnitude larger than the EMG signal itself. The goal of this work was to design an active EMG electrode that could be used as bipolar electrodes or in an electrode array. Two electrodes were designed and tested. One design only worked in bipolar and the other did not possess the desired noise immunity. Explanations to the behavior of the electrodes are presented along with possible modifications the the electrodes to achieve the desired performance.","abstract_has_math":false,"creators":["Peterson, Andrew Jay II"],"institution":"Virginia Tech","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Electrical Engineering","degree_department":"Electrical and Computer Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":["Stilwell, Daniel J.","Asbeck, Alan T."],"committee_members":["Baumann, William T."],"year":2017,"date_issued":"2017-08-10","date_published":"2017-08-10","updated_at":"2026-07-22T22:20:20Z","subjects":["Electromyography","EMG","surface EMG","EMG signals","EMG system design"],"languages":[],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["vt_gsexam:12600"],"render_values":[{"text":"vt_gsexam:12600","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10919/78693","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.committeechair","label":"Committee Chair","values":["Stilwell, Daniel J.","Asbeck, Alan T."]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Baumann, William T."]},{"key":"dc:contributor.department","label":"Department","values":["Electrical and Computer Engineering"]},{"key":"dc:creator","label":"Author","values":["Peterson, Andrew Jay II"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2017-08-11T08:00:22Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2017-08-11T08:00:22Z"]},{"key":"dc:date.issued","label":"Date","values":["2017-08-10"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Tech"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Electromyography","EMG","surface EMG","EMG signals","EMG system design"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["vt_gsexam:12600"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/78693"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The design of current electromyography (EMG) systems focuses on specific applications. One design focuses on the use of bipolar electrodes to monitor a single muscle group. Several of these electrodes can then be used to monitor different muscles on the body simultaneously. Another design places many electrodes in an array on a limb or over a single muscle. One cannot be used for the other. Additionally the design of an EMG system must account for several sources of noise that can be orders of magnitude larger than the EMG signal itself. The goal of this work was to design an active EMG electrode that could be used as bipolar electrodes or in an electrode array. Two electrodes were designed and tested. One design only worked in bipolar and the other did not possess the desired noise immunity. Explanations to the behavior of the electrodes are presented along with possible modifications the the electrodes to achieve the desired performance."]},{"key":"dc:description.abstractgeneral","label":"General Abstract","values":["Electromyography or EMG is the measurement of the electrical activity produced by muscles when moving or lifting. These measurements are taken by metal electrodes placed on the surface of the skin. To properly measure the electrical activity precise measurement circuits have to be used and steps have to be taken to reduce any interference. EMG systems are typically setup in one of two layouts. The first layout is a few electrodes are used to monitor a muscle but many different muscles can be monitored simultaneously. The second is to place many electrodes that are close to each other to monitor a single muscle. In either layout there are many types of interference that can effect the data and must be accounted for in the systems design. In this work two electrodes were designed. The goal was to produce an electrode that would function in either layout. After testing both of the electrodes it was determined that both of the electrodes work but not as well as desired. Several future steps and design modifications are presented."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["ETD"]},{"key":"dc:title","label":"Title","values":["Development of a Modular Electromyography System"]}]}],"canonical_facts":{"dc:contributor.committeechair":["Stilwell, Daniel J.","Asbeck, Alan T."],"dc:contributor.committeemember":["Baumann, William T."],"dc:contributor.department":["Electrical and Computer Engineering"],"dc:creator":["Peterson, Andrew Jay II"],"dc:date.accessioned":["2017-08-11T08:00:22Z"],"dc:date.available":["2017-08-11T08:00:22Z"],"dc:date.issued":["2017-08-10"],"dc:description.abstract":["The design of current electromyography (EMG) systems focuses on specific applications. One design focuses on the use of bipolar electrodes to monitor a single muscle group. Several of these electrodes can then be used to monitor different muscles on the body simultaneously. Another design places many electrodes in an array on a limb or over a single muscle. One cannot be used for the other. Additionally the design of an EMG system must account for several sources of noise that can be orders of magnitude larger than the EMG signal itself. The goal of this work was to design an active EMG electrode that could be used as bipolar electrodes or in an electrode array. Two electrodes were designed and tested. One design only worked in bipolar and the other did not possess the desired noise immunity. Explanations to the behavior of the electrodes are presented along with possible modifications the the electrodes to achieve the desired performance."],"dc:description.abstractgeneral":["Electromyography or EMG is the measurement of the electrical activity produced by muscles when moving or lifting. These measurements are taken by metal electrodes placed on the surface of the skin. To properly measure the electrical activity precise measurement circuits have to be used and steps have to be taken to reduce any interference. EMG systems are typically setup in one of two layouts. The first layout is a few electrodes are used to monitor a muscle but many different muscles can be monitored simultaneously. The second is to place many electrodes that are close to each other to monitor a single muscle. In either layout there are many types of interference that can effect the data and must be accounted for in the systems design. In this work two electrodes were designed. The goal was to produce an electrode that would function in either layout. After testing both of the electrodes it was determined that both of the electrodes work but not as well as desired. Several future steps and design modifications are presented."],"dc:description.degree":["Master of Science"],"dc:format.medium":["ETD"],"dc:identifier.other":["vt_gsexam:12600"],"dc:identifier.uri":["http://hdl.handle.net/10919/78693"],"dc:publisher":["Virginia Tech"],"dc:rights":["In Copyright"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:subject":["Electromyography","EMG","surface EMG","EMG signals","EMG system design"],"dc:title":["Development of a Modular Electromyography System"],"dc:type":["Thesis"],"thesis:degree_discipline":["Electrical Engineering"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Virginia Polytechnic Institute and State University"]},"updated_at":"2026-07-22T22:20:20Z"}