TY - GEN
T1 - Quantitative dynamic and distributed fiber-optic sensing has come of age
AU - Tur, Moshe
N1 - Publisher Copyright:
© International Workshop on Structural Health Monitoring. All rights reserved.
PY - 2019
Y1 - 2019
N2 - While the importance of static fiber-optic distributed quantitative sensing has been already recognized, appreciated and applied, adding full dynamic, real-time characteristics is of crucial importance, as it enables the use of distributed sensing in time-varying scenarios in multiple applications, such as: aerospace, civil engineering, transportation and more. For example, distributed load monitoring and damage detection in a flying platform must have dynamic capabilities due to the constant motion of the subsystems under investigation. Even 'static' applications, such as the distributed mapping of strain over a loaded long wing, require some dynamic performance. Otherwise, the accuracy of the supposedly 'static' measurements may be compromised by parasitic vibrations of the structure. Worse, testing personnel, losing their patience to wait until all vibrations die, will be reluctant to move to fiber-optic sensing. The paper outlines a few promising commercially available technologies for quantitative fiber-optic dynamic and distributed sensing of mainly strain but also temperature, suitable for general SHM applications. It also discusses relevant specifications, with emphasis on the required sampling rates for the temporal bandwidth of a given application and mention a wish-list for a more widespread use of the technology.
AB - While the importance of static fiber-optic distributed quantitative sensing has been already recognized, appreciated and applied, adding full dynamic, real-time characteristics is of crucial importance, as it enables the use of distributed sensing in time-varying scenarios in multiple applications, such as: aerospace, civil engineering, transportation and more. For example, distributed load monitoring and damage detection in a flying platform must have dynamic capabilities due to the constant motion of the subsystems under investigation. Even 'static' applications, such as the distributed mapping of strain over a loaded long wing, require some dynamic performance. Otherwise, the accuracy of the supposedly 'static' measurements may be compromised by parasitic vibrations of the structure. Worse, testing personnel, losing their patience to wait until all vibrations die, will be reluctant to move to fiber-optic sensing. The paper outlines a few promising commercially available technologies for quantitative fiber-optic dynamic and distributed sensing of mainly strain but also temperature, suitable for general SHM applications. It also discusses relevant specifications, with emphasis on the required sampling rates for the temporal bandwidth of a given application and mention a wish-list for a more widespread use of the technology.
UR - http://www.scopus.com/inward/record.url?scp=85074421156&partnerID=8YFLogxK
U2 - 10.12783/shm2019/32096
DO - 10.12783/shm2019/32096
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AN - SCOPUS:85074421156
T3 - Structural Health Monitoring 2019: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring
SP - 36
EP - 45
BT - Structural Health Monitoring 2019
A2 - Chang, Fu-Kuo
A2 - Guemes, Alfredo
A2 - Kopsaftopoulos, Fotis
PB - DEStech Publications Inc.
T2 - 12th International Workshop on Structural Health Monitoring: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT), IWSHM 2019
Y2 - 10 September 2019 through 12 September 2019
ER -