{"id":{"repo_id":"oldenburg","oai_identifier":"oai:oops.uni-oldenburg.de:139"},"canonical_url":"https://search.dev.ndltd.org/etd/oldenburg/oai:oops.uni-oldenburg.de:139","repository":{"repo_id":"oldenburg","name":"Carl von Ossietzky Universität Oldenburg","base_url":"http://oops.uni-oldenburg.de/cgi/oai2"},"display":{"title":"Beitrag zur kontinuierlichen interferometrischen Untersuchung der Eigenschwingungsformen rotierender Bauteile","abstract":"The aim of this thesis is to investigate fundamental knowledge for continuous inspection of eigenmodes of rotating objects by means of an electronic speckle interferometer and an optical image derotator. The system suggested consists of a rotor, a derotator and an electronic speckle interferometer. Elimination of the rotation by the derotator enables measuring axial vibration interferometrically. For theoretical investigation of the derotator its function was modelled mathematically. A simulation software was developed and even the real properties of the systems components were implemented. This enabled the analysis of influences of specific quantities separately as well as the study of allowed tolerances. For experimental analysis of the system the electronic speckle interferometer itself was applied for measuring the behaviour of the geometrical relationship of the components. The experimental as well as the theoretical investigation result in complete understanding of the system and an optimised set-up was designed.","abstract_html":"The aim of this thesis is to investigate fundamental knowledge for continuous inspection of eigenmodes of rotating objects by means of an electronic speckle interferometer and an optical image derotator. The system suggested consists of a rotor, a derotator and an electronic speckle interferometer. Elimination of the rotation by the derotator enables measuring axial vibration interferometrically. For theoretical investigation of the derotator its function was modelled mathematically. A simulation software was developed and even the real properties of the systems components were implemented. This enabled the analysis of influences of specific quantities separately as well as the study of allowed tolerances. For experimental analysis of the system the electronic speckle interferometer itself was applied for measuring the behaviour of the geometrical relationship of the components. The experimental as well as the theoretical investigation result in complete understanding of the system and an optimised set-up was designed.","abstract_has_math":false,"creators":["Miesner, Jörn"],"institution":"Universität Oldenburg","degree_name":null,"degree_level":"thesis.doctoral","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2004,"date_issued":"2004-02-04","date_published":"2004-02-04","updated_at":"2026-07-27T20:27:13Z","subjects":["[Keine Schlagwörter von Autor/in vergeben.]"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://oops.uni-oldenburg.de/139","outbound_label":"Repository record","outbound_source":"source_url"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Miesner, Jörn"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:publisher","label":"Institution","values":["BIS der Universität Oldenburg"]},{"key":"dc:type","label":"Dc Type","values":["doctoralThesis"]},{"key":"thesis:degree_level","label":"Degree Level","values":["thesis.doctoral"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Universität Oldenburg"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["[Keine Schlagwörter von Autor/in vergeben.]"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The aim of this thesis is to investigate fundamental knowledge for continuous inspection of eigenmodes of rotating objects by means of an electronic speckle interferometer and an optical image derotator. The system suggested consists of a rotor, a derotator and an electronic speckle interferometer. Elimination of the rotation by the derotator enables measuring axial vibration interferometrically. For theoretical investigation of the derotator its function was modelled mathematically. A simulation software was developed and even the real properties of the systems components were implemented. This enabled the analysis of influences of specific quantities separately as well as the study of allowed tolerances. For experimental analysis of the system the electronic speckle interferometer itself was applied for measuring the behaviour of the geometrical relationship of the components. The experimental as well as the theoretical investigation result in complete understanding of the system and an optimised set-up was designed.","In der vorliegenden Dissertation sind die Grundlagen erarbeitet worden, um mittels eines elektronischen Speckle-Interferometers (ESPI) und eines optischen Bildderotators rotierende Bauteile kontinuierlich auf Eigenschwingungsformen hin untersuchen zu können. Das vorgeschlagene System besteht aus einem Rotor, einem Derotator und einem ESPI. mit dem es möglich ist, die Drehbewegung des Rotors optisch aufzuheben und seine axialen Bewegungen bzw. Eigenschwingungsformen interferometrisch vermessen zu können. Zur theoretischen Untersuchung der Eigenschaften des Derotators wurde seine Funktion erstmals mathematisch modelliert und darauf aufbauend ein Simulationsprogramm entwickelt. In das Simulationsprogramm wurden auch die realen Eigenschaften der Systemkomponenten implementiert, um sie einerseits separat voneinander untersuchen zu können und andererseits ihre zulässigen Toleranzen im Gesamtsystem ermitteln zu können. Zur experimentellen Untersuchung der Eigenschaften des aus Rotor, Derotator und Interferometer bestehenden Systems wurde das vorhandene elektronische Speckle-Interferometer selbst als Messinstrument eingesetzt. Die parallel ausgeführten experimentellen und theoretischen Untersuchungen führten zum vollständigen Verständnis der Eigenschaften des Messsystems und zur Konstruktion eines optimierten Aufbaus."]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Beitrag zur kontinuierlichen interferometrischen Untersuchung der Eigenschwingungsformen rotierender Bauteile"]}]}],"canonical_facts":{"dc:creator":["Miesner, Jörn"],"dc:description.abstract":["The aim of this thesis is to investigate fundamental knowledge for continuous inspection of eigenmodes of rotating objects by means of an electronic speckle interferometer and an optical image derotator. The system suggested consists of a rotor, a derotator and an electronic speckle interferometer. Elimination of the rotation by the derotator enables measuring axial vibration interferometrically. For theoretical investigation of the derotator its function was modelled mathematically. A simulation software was developed and even the real properties of the systems components were implemented. This enabled the analysis of influences of specific quantities separately as well as the study of allowed tolerances. For experimental analysis of the system the electronic speckle interferometer itself was applied for measuring the behaviour of the geometrical relationship of the components. The experimental as well as the theoretical investigation result in complete understanding of the system and an optimised set-up was designed.","In der vorliegenden Dissertation sind die Grundlagen erarbeitet worden, um mittels eines elektronischen Speckle-Interferometers (ESPI) und eines optischen Bildderotators rotierende Bauteile kontinuierlich auf Eigenschwingungsformen hin untersuchen zu können. Das vorgeschlagene System besteht aus einem Rotor, einem Derotator und einem ESPI. mit dem es möglich ist, die Drehbewegung des Rotors optisch aufzuheben und seine axialen Bewegungen bzw. Eigenschwingungsformen interferometrisch vermessen zu können. Zur theoretischen Untersuchung der Eigenschaften des Derotators wurde seine Funktion erstmals mathematisch modelliert und darauf aufbauend ein Simulationsprogramm entwickelt. In das Simulationsprogramm wurden auch die realen Eigenschaften der Systemkomponenten implementiert, um sie einerseits separat voneinander untersuchen zu können und andererseits ihre zulässigen Toleranzen im Gesamtsystem ermitteln zu können. Zur experimentellen Untersuchung der Eigenschaften des aus Rotor, Derotator und Interferometer bestehenden Systems wurde das vorhandene elektronische Speckle-Interferometer selbst als Messinstrument eingesetzt. Die parallel ausgeführten experimentellen und theoretischen Untersuchungen führten zum vollständigen Verständnis der Eigenschaften des Messsystems und zur Konstruktion eines optimierten Aufbaus."],"dc:format.medium":["application/pdf"],"dc:publisher":["BIS der Universität Oldenburg"],"dc:subject":["[Keine Schlagwörter von Autor/in vergeben.]"],"dc:title":["Beitrag zur kontinuierlichen interferometrischen Untersuchung der Eigenschwingungsformen rotierender Bauteile"],"dc:type":["doctoralThesis"],"thesis:degree_level":["thesis.doctoral"],"thesis:institution_name":["Universität Oldenburg"]},"updated_at":"2026-07-27T20:27:13Z"}