{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/106098"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/106098","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Fiber optic modal domain sensing of structural vibrations","abstract":"This paper investigates the application of single, low-moded, fiber optic sensors to the detection of structural vibration. Several laboratory vibration systems which demonstrate a range of component frequencies and dynamic range are analyzed in an effort to characterize the sensor's behavior. We compare frequency spectra of the sensor output with calculated frequency components of the structures to determine if the sensor is responding to the various structural harmonics. Specifically, we wish to demonstrate the dynamic range and frequency response of the sensing technique. Experimental results and observations are preceded by a brief review of sensor mechanisms in optical fibers and presentation of a theory describing the operation of the modal domain sensor.","abstract_html":"This paper investigates the application of single, low-moded, fiber optic sensors to the detection of structural vibration. Several laboratory vibration systems which demonstrate a range of component frequencies and dynamic range are analyzed in an effort to characterize the sensor's behavior. We compare frequency spectra of the sensor output with calculated frequency components of the structures to determine if the sensor is responding to the various structural harmonics. Specifically, we wish to demonstrate the dynamic range and frequency response of the sensing technique. Experimental results and observations are preceded by a brief review of sensor mechanisms in optical fibers and presentation of a theory describing the operation of the modal domain sensor.","abstract_has_math":false,"creators":["Ehrenfeuchter, Paul A."],"institution":"Virginia Polytechnic Institute and State University","degree_name":"M.S.","degree_level":"masters","degree_discipline":"Electrical Engineering","degree_department":"Electrical Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1986,"date_issued":"1986","date_published":"1986","updated_at":"2026-07-22T22:19:45Z","subjects":[],"languages":["en"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10919/106098","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Electrical Engineering"]},{"key":"dc:creator","label":"Author","values":["Ehrenfeuchter, Paul A."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2021-10-26T20:10:07Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2021-10-26T20:10:07Z"]},{"key":"dc:date.issued","label":"Date","values":["1986"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Polytechnic Institute and State University"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"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":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"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.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/106098"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This paper investigates the application of single, low-moded, fiber optic sensors to the detection of structural vibration. Several laboratory vibration systems which demonstrate a range of component frequencies and dynamic range are analyzed in an effort to characterize the sensor's behavior. We compare frequency spectra of the sensor output with calculated frequency components of the structures to determine if the sensor is responding to the various structural harmonics. Specifically, we wish to demonstrate the dynamic range and frequency response of the sensing technique. Experimental results and observations are preceded by a brief review of sensor mechanisms in optical fibers and presentation of a theory describing the operation of the modal domain sensor."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["M.S."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Fiber optic modal domain sensing of structural vibrations"]}]}],"canonical_facts":{"dc:contributor.department":["Electrical Engineering"],"dc:creator":["Ehrenfeuchter, Paul A."],"dc:date.accessioned":["2021-10-26T20:10:07Z"],"dc:date.available":["2021-10-26T20:10:07Z"],"dc:date.issued":["1986"],"dc:description.abstract":["This paper investigates the application of single, low-moded, fiber optic sensors to the detection of structural vibration. 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