Simultaneous 2D strain sensing using polymer planar Bragg gratings.
Rosenberger M, Eisenbeil W, Schmauß B, Hellmann R (2015)
Publication Language: English
Publication Status: Published
Publication Type: Journal article
Publication year: 2015
Journal
Publisher: MDPI
Book Volume: 15
Pages Range: 4264-72
Journal Issue: 2
DOI: 10.3390/s150204264
Abstract
We demonstrate the application of polymer planar Bragg gratings for multi-axial strain sensing and particularly highlight simultaneous 2D strain measurement. A polymer planar Bragg grating (PPBG) fabricated with a single writing step in bulk polymethylmethacrylate is used for measuring both tensile and compressive strain at various angles. It is shown that the sensitivity of the PPBG strongly depends on the angle between the optical waveguide into which the grating is inscribed and the direction along which the mechanical load is applied. Additionally, a 2D PPBG fabricated by writing two Bragg gratings angularly displaced from each other into a single polymer platelet is bonded to a stainless steel plate. The two reflected wavelengths exhibit different sensitivities while tested toward tensile and compressive strain. These characteristics make 2D PPBG suitable for measuring multi-axial tensile and compressive strain.
Authors with CRIS profile
Bernhard Schmauß
Professur für Hochfrequenztechnik mit dem Schwerpunkt Optische Hochfrequenztechnik und Photonik
Involved external institutions
Germany (DE)How to cite
APA:
Rosenberger, M., Eisenbeil, W., Schmauß, B., & Hellmann, R. (2015). Simultaneous 2D strain sensing using polymer planar Bragg gratings. Sensors, 15(2), 4264-72. https://doi.org/10.3390/s150204264
MLA:
Rosenberger, Manuel, et al. "Simultaneous 2D strain sensing using polymer planar Bragg gratings." Sensors 15.2 (2015): 4264-72.
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