Fiber Optic Sensors In Structural Health Monitoring

The first fiber optic sensor a closed loop fiber gyro was invented to replace mechanical spinning gyros on the delta rocket in 1978.

Fiber optic sensors in structural health monitoring.

Both original research papers and review articles describing the current state of the art in this research field are welcome. Fibre optic methods for structural health monitoring john wiley sons inc. Conception of such foss originated from fiber optic communications. This special issue will focus on the current state of the art of optical sensors for structural health monitoring shm covering recent technological improvements in new devices sensors and emerging applications.

Nowadays optical fiber sensors are widely used in different structural health monitoring systems 46 47 48 49 50 51. Structural health monitoring shm can be understood as the integration of sensing and intelligence to enable the structure loading and damage provoking conditions to be recorded analyzed localized and predicted in such a way that nondestructive testing becomes an integral part of. Development of fiber optic methods for shm based on short gauge longgauge and distributed sensors can be found in the following books. Smart structural health monitoring of composite materials with optical fiber sensors is becoming more and more important especially in the aviation industry.

The following provides a brief review to the most widely used shm sensors for structural monitoring. Fiber optic sensing allows for highly accurate robust and continuous structural health monitoring predicting and preventing equipment failure and structural damage to infrastructure. Fiber optic sensor technology is being developed to provide existing and future aircrafts with shm capability due to its unique superior characteristics. Wiley new york ny usa.

The latest advances in research on sensor technology for structural health monitoring has been resulted in various types of shm sensors. Unaffected by electro magnetic fields and resistant to extreme temperatures and stress fiber optic sensors can be used even in the most harsh environments. Structural health monitoring shm based on advanced sensor technology is potentially a cost effective approach to meet operational requirements and to reduce maintenance costs. An introduction for engineers and scientists.

This paper presents an overview of hybrid fiber optic sensing systems based on scattering techniques fiber bragg gratings interferometric techniques and polarimetric methods in structural health monitoring.