CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 11144 > Article
Open Access Paper
17 September 2019 A fiber optic ultrasonic sensing system for 2D temperature field monitoring using optically generated acoustic waves
Jingcheng Zhou, Xu Guo, Tong Ma, Cong Du, Yuqian Liu, Chengyu Cao, Xingwei Wang
Author Affiliations +
Proceedings Volume 11144, Photonics and Education in Measurement Science 2019; 111440W (2019) https://doi.org/10.1117/12.2531133
Event: Joint TC1 - TC2 International Symposium on Photonics and Education in Measurement Science 2019, 2019, Jena, Germany
Abstract
In this paper, we present a novel fiber optic ultrasonic sensing system to conduct a 2D temperature field monitoring. The fiber optic ultrasonic sensing system was used as an ultrasonic pyrometer to measure the temperature field. The ultrasonic pyrometer was based on the thermal dependence of the speed of sound in air. The speed of a sound wave traveling in a medium was proportional to the medium’s temperature. A fiber optic ultrasonic generator and a microphone were used as the ultrasonic signal generator and receiver, respectively. A carbon blackPolydimethylsiloxane (PDMS) material was utilized as the photoacoustic material for the fiber optic ultrasonic generator. A test was performed outside of a lab furnace, the testing area temperature range was from 26°C to 70°C. A 2D temperature field was mapped. The 2D temperature field map matched with the reference thermocouple results. This system could lead to the development of a new generation temperature sensor for temperature field monitoring in coalfired boilers or exhaust gas temperature monitoring for turbine engines.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Jingcheng Zhou, Xu Guo, Tong Ma, Cong Du, Yuqian Liu, Chengyu Cao, and Xingwei Wang "A fiber optic ultrasonic sensing system for 2D temperature field monitoring using optically generated acoustic waves", Proc. SPIE 11144, Photonics and Education in Measurement Science 2019, 111440W (17 September 2019); https://doi.org/10.1117/12.2531133
PROCEEDINGS
 7 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Ultrasonics
Fiber optics
Fiber optics sensors
Sensing systems
Temperature metrology
Acoustics
Receivers
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top