Fiber Bragg grating (FBG) sensors used in coal mines

Fiber Optic Bragg-Grating Sensors

In-fibre Bragg gratings are sensor elements which are photo-written into optical fibre using intense ultra-violet laser beams and have the potential for the measurement of strain/deformation and temperature with applications reported including monitoring of highways, bridges, aerospace components and in chemical and biological sensors. The development of a fiber Bragg grating (FBG) measuring sy...

Self-Protected Sensor System Utilizing Fiber Bragg Grating (FBG)-Based Sensors

Low Cost Fiber Bragg Grating( FBG) Sensors for Structural Health Monitoring INITIAL PROJECT REPORT

Fiber Bragg Grating Sensors for Harsh Environments

Because of their small size, passive nature, immunity to electromagnetic interference, and capability to directly measure physical parameters such as temperature and strain, fiber Bragg grating sensors have developed beyond a laboratory curiosity and are becoming a mainstream sensing technology. Recently, high temperature stable gratings based on regeneration techniques and femtosecond infrared...

A Guide to Fiber Bragg Grating Sensors

Optical fiber sensors (OFS) appeared just after the invention of the practical optical fiber by Corning Glass Works in 1970, now Corning Incorporated, that produced the first fiber with losses below 20 dB/km. At the beginning of this era, optical devices such as laser, photodetectors and the optical fibers were very expensive, afforded only by telecom companies to circumvent the old saturated c...