Integrated Optical Deformation Measurement with TIR Prism Rods

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dc.identifier.uri Wolf, Alexander 2023-03-21T06:08:04Z 2023-03-21T06:08:04Z 2023
dc.identifier.citation Wolf, A.: Integrated Optical Deformation Measurement with TIR Prism Rods. In: Sensors 23 (2023), Nr. 2, 943. DOI:
dc.description.abstract In this paper, a novel optical measurement principle for deformation, especially torsion, is presented. A laser beam is guided via total internal reflection (TIR) in a prism rod. Every single reflection causes an increasing change in the beam path, which can be measured by its effect on the outcoupling position of the laser. With a diameter of the prism rod of 10 mm and a length of 120 mm, the system achieves torsion sensitivities between 350 µm/° and more than 7000 µm/°, depending on the actual torsion angle φ. A decency level of sensitivity is defined for comparison, which is exceeded by a factor of ~55 at φ=0. The presented principle of TIR prism rods can be adapted to measure different load cases. Using two laser beams, bending and torsion can be distinguished and combined load cases analyzed. The resulting system can be integrated into machine elements, such as screws, to perform condition monitoring on mechanically loaded components. eng
dc.language.iso eng
dc.publisher Basel : MDPI
dc.relation.ispartofseries Sensors 23 (2023), Nr. 2
dc.rights CC BY 4.0 Unported
dc.subject optical measurement eng
dc.subject integrated measurement eng
dc.subject prism rods eng
dc.subject deformation eng
dc.subject torsion eng
dc.subject condition monitoring eng
dc.subject total internal reflection eng
dc.subject decency level of sensitivity eng
dc.subject.ddc 620 | Ingenieurwissenschaften und Maschinenbau ger
dc.title Integrated Optical Deformation Measurement with TIR Prism Rods
dc.type Article
dc.type Text
dc.relation.essn 1424-8220
dc.bibliographicCitation.issue 2
dc.bibliographicCitation.volume 23
dc.bibliographicCitation.firstPage 943
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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