Translator Disclaimer
Paper
23 May 2005 Dynamic temperature measurements with a Bragg grating sensor
Author Affiliations +
Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623587
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium
Abstract
We investigated the use of a fibre Bragg grating as a temperature sensor under dynamic conditions. Simulations indicated that the time response of the device is determined by heat conduction from the surface of the cladding to the fibre core where the grating is located. These calculations also indicated that the time response could be improved by nearly an order of magnitude through thinning of the cladding by chemical etching. The sensor was tested experimentally by moving it at different rates through a fast flowing column of heated air. Without etching, the temperature in the fibre core reached 98% of its equilibrium value within 0.9 seconds. This was confirmed experimentally. According to calculations, it should be possible to reduce the response time to 0.1 seconds if the cladding diameter is 20 μm.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Japie van Wyk, Pieter L. Swart, J. A. van Rooyen, and Anatoli A. Chtcherbakov "Dynamic temperature measurements with a Bragg grating sensor", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623587
PROCEEDINGS
4 PAGES


SHARE
Advertisement
Advertisement
Back to Top