Paper Title:
Application of Fiber Optic BOTDA Sensor for Fire Detection in a Building
  Abstract

Smart structures are to be possessed many functions to sense the external effects, such as seismic loads, temperature, and impact by some explosion, influenced on the safety of structures. This work was focused on the development of a sensing function of smart structures to get the temperature distribution on structures to detect fire occurrences. A fiber optic BOTDA (Brillouin Optical Time Domain Analysis) sensor system was developed to detect the fire occurrence by measuring the temperature distribution of a building’s exterior surfaces. This fiber optic sensor system was constructed with a laser diode and two electro-optic modulators, which made this system faster than systems using only one electro-optic modulator. The temperature distributed on an optical fiber can be measured by this fiber optic BOTDA sensor. An optical fiber, 1400 m in length, was installed on the surface of a building. Using real-time processing of the sensor system, we were able to monitor temperature distribution on the building’s surfaces, and changes in temperature distribution were also measured accurately with this fiber optic sensor.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
212-216
DOI
10.4028/www.scientific.net/KEM.321-323.212
Citation
I. B. Kwon, C. Y. Kim, D. C. Seo, "Application of Fiber Optic BOTDA Sensor for Fire Detection in a Building ", Key Engineering Materials, Vols. 321-323, pp. 212-216, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Huk Jin Yoon, Kwang Yong Song, Jung Seok Kim, Kwang Bok Shin, Seung Chul Kim
Abstract:In the conventional DCB test, test is usually conducted by observing the crack growth with a microscope, in this paper, new technique is...
2592
Authors: Kai Zhang, Yi Xin Zhang
Chapter 2: Frontiers of Building Materials
Abstract:During the measurement of a BOTDR system, it is significant to keep the extinction ratio of probe pulse uniform if constant sensing...
1200
Authors: Guo An Wang, Hao Zhang
Chapter 6: Engineering Material, Mechanical Engineering and Applied Mechanics
Abstract:In this paper, the new developed PPP-BOTDA based distributed optical fiber strain sensors are used to monitor wall thinning in pipeline....
1170
Authors: Hyuk Jin Yoon, Kwang Yong Song, Jung Seok Kim, Hee Seung Na
Chapter 2: Manufacturing Processes and Systems: Automation and Control
Abstract:A fiber optic sensor system based on stimulated Brillouin scattering is realized to measure the strain distribution along the fiber itself as...
484
Authors: Dong Dong Liu, Sheng Peng Wan, Di Peng, Yi Zhu Zhao
Chapter 2: Sensors, Measurement and Detection
Abstract:In the paper, we research frequency difference lock of two lasers. In the optical fiber Brillouin sensor, two beams of laser frequency...
905