Measurement of distributed strain and load identification using 1500 mm gauge length FBG and optical frequency domain reflectometry

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 7503, Issue , 2009, Pages

  Igawa, Hirotaka ^a   Murayama, Hideaki ^b   Nakamura, Toshiya ^a   Yamaguchi, Isao ^a   Kageyama, Kazuro ^b   Uzawa, Kiyoshi ^b   Wada, Daichi ^b   Ohsawa, Isamu ^b   Kanai, Makoto ^b   Omichi, Koji ^c  

^a JAPAN AEROSPACE EXPLORATION AGENCY   (Japan)

^b UNIVERSITY OF TOKYO   (Japan)

^c FUJIKURA LTD   (Japan)

Author keywords

Fiber optic distributed strain sensor; Load identification; Long gauge length FBG; Optical frequency domain reflectometry

Indexed keywords

APPLIED LOADS; ARBITRARY POSITIONS; BENDING LOAD; DISTRIBUTED STRAIN; DISTRIBUTED STRAIN MEASUREMENT; FBG SENSOR; GAUGE LENGTH; HIGH SPATIAL RESOLUTION; INVERSE ANALYSIS; LOAD IDENTIFICATION; LONG GAUGE LENGTH FBG; OPTICAL FREQUENCY DOMAIN REFLECTOMETRY; SIMPLY SUPPORTED BEAMS; STRAIN DISTRIBUTIONS;

DYNAMIC LOADS; FIBER BRAGG GRATINGS; FIBER OPTICS; FIBERS; FREQUENCY DOMAIN ANALYSIS; GAGES; IMAGE RESOLUTION; MONITORING; NATURAL FREQUENCIES; OPTICAL FIBERS; OPTICAL MATERIALS; REFLECTION; REFLECTOMETERS; SENSORS; STRUCTURAL HEALTH MONITORING;

STRAIN;

EID: 70449448557     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.834236     Document Type: Conference Paper

References (5)

1. H. Murayama et al. "Application of fiber-optic distributed sensors to health monitoring for full-scale composite structures", Journal of Intelligent Material Systems and Structures, 14(1), 3-13 (2003).
2. K. Hotate et al., "Distributed fiber Brillouin strain sensing with 1-cm spatial resolution by correlation-based continuous-wave technique", IEEE Photonics Technology Letters, 14 (2), 179-181 (2002).
3. T. Nakamura and H.Igawa, "Inverse analysis of distributed load using strain data (in Japanese)", Journal of the Japan Society for Aeronautical and Space Sciences, 56 (659), 566-572 (2008).
4. H. Igawa et al., "Distributed Measurements with a Long Gauge FBG Sensor Using Optical Frequency Domain Reflectometry (1st Report, System Investigation Using Optical Simulation Model)", Journal of Solid Mechanics and Materials Engineering, 2(9), 1242-1252 (2008).
5. B. Childers et al., " Use of 3000 Bragg grating strain sensors distributed on four eight-meter optical fibers during static load tests of a composite structure", Proc. of SPIE, 4332, 133-142 (2001).