Abstract
A recent increase in structural integrity requirements has lead to a higher demand for accurate heat flux and temperature readings of building material substrates. In the present work, simultaneous two parameter measurements of the average temperature and the temperature difference in concrete blocks are reported. To this end long period gratings (LPGs) were commissioned in a boron doped photosensitive optical fiber using a pulsed CO<sub>2</sub> laser. The average temperature and the temperature differences were shown to be a linear combination of the spectral shifts of the center wavelength and the changes in the variations in transmitted power <i>I</i><sub>c</sub> minimums. The sensitivity and cross-sensitivity coefficients of the sensitivity matrix are also reported.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Transactions on Instrumentation and Measurement
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
