Details
| Original language | English |
|---|---|
| Article number | 107568 |
| Journal | Optics and lasers in engineering |
| Volume | 166 |
| Early online date | 16 Mar 2023 |
| Publication status | Published - Jul 2023 |
Abstract
We analyse and evaluate the sensitivity and robustness of an eccentric fiber Bragg grating sensor micro-structured into a polymer optical fiber under different relative humidity, temperature, strain and torsion conditions. Relative humidity and temperature conditions are established with a climate test chamber and prepared salt solutions. Though made of polymer, the cross-sensitivity of the sensor to relative humidity is low, enabling usage in rapidly changing environment applications, e.g., for movement detecting gloves or in vehicles, but also in high moisture situations. We find a linear dependence on temperature, so that either bending or temperature can be measured separately from each other. After rotation of one end, the sensor measures torsion by observing the light intensity and the change of the full width at half maximum. Strain measurement shows multiple elastic strain regions before final plastic deformations occur. In the next step, the flexible sensor system will be implemented in a sensor glove to monitor finger movement and detect different hand gestures.
Keywords
- Fiber Bragg gratings, Fiber optics, Optical bend sensor, Polymer optical fiber, Strain sensor, Temperature sensor, Torsion sensor, UV excimer laser
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Optics and lasers in engineering, Vol. 166, 107568, 07.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Evaluation of polymer-based eccentric FBG bending sensor for humidity, strain, temperature and torsion
AU - Leffers, Lennart
AU - Roth, Bernhard
AU - Overmeyer, Ludger
N1 - Funding Information: Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation ( OV 36/43-1 )). B. Roth and L. Overmeyer acknowledge funding from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453).
PY - 2023/7
Y1 - 2023/7
N2 - We analyse and evaluate the sensitivity and robustness of an eccentric fiber Bragg grating sensor micro-structured into a polymer optical fiber under different relative humidity, temperature, strain and torsion conditions. Relative humidity and temperature conditions are established with a climate test chamber and prepared salt solutions. Though made of polymer, the cross-sensitivity of the sensor to relative humidity is low, enabling usage in rapidly changing environment applications, e.g., for movement detecting gloves or in vehicles, but also in high moisture situations. We find a linear dependence on temperature, so that either bending or temperature can be measured separately from each other. After rotation of one end, the sensor measures torsion by observing the light intensity and the change of the full width at half maximum. Strain measurement shows multiple elastic strain regions before final plastic deformations occur. In the next step, the flexible sensor system will be implemented in a sensor glove to monitor finger movement and detect different hand gestures.
AB - We analyse and evaluate the sensitivity and robustness of an eccentric fiber Bragg grating sensor micro-structured into a polymer optical fiber under different relative humidity, temperature, strain and torsion conditions. Relative humidity and temperature conditions are established with a climate test chamber and prepared salt solutions. Though made of polymer, the cross-sensitivity of the sensor to relative humidity is low, enabling usage in rapidly changing environment applications, e.g., for movement detecting gloves or in vehicles, but also in high moisture situations. We find a linear dependence on temperature, so that either bending or temperature can be measured separately from each other. After rotation of one end, the sensor measures torsion by observing the light intensity and the change of the full width at half maximum. Strain measurement shows multiple elastic strain regions before final plastic deformations occur. In the next step, the flexible sensor system will be implemented in a sensor glove to monitor finger movement and detect different hand gestures.
KW - Fiber Bragg gratings
KW - Fiber optics
KW - Optical bend sensor
KW - Polymer optical fiber
KW - Strain sensor
KW - Temperature sensor
KW - Torsion sensor
KW - UV excimer laser
UR - http://www.scopus.com/inward/record.url?scp=85163675084&partnerID=8YFLogxK
U2 - 10.1016/j.optlaseng.2023.107568
DO - 10.1016/j.optlaseng.2023.107568
M3 - Article
AN - SCOPUS:85163675084
VL - 166
JO - Optics and lasers in engineering
JF - Optics and lasers in engineering
SN - 0143-8166
M1 - 107568
ER -