2016年4月13日星期三

Fiber Optic Sensors: Fundamentals and Applications

Fiber optic sensing technology has evolved over 60 years of development and commercialization. While many applications are for point sensors, the most rapid expansion has been for distributed fiber optic sensor systems, which will be the focus of the presentation.

Distributed fiber optic sensing systems fall into two categories: quasi-distributed (multipoint) systems and continuous systems. The technologies associated with these systems will be covered in detail, including Bragg grating and interferometric methods, as well as Raman, Brillouin and Rayleigh scattering. These sensing concepts can be used to measure strain, temperature, vibration, pressure, acoustic emission, electric and magnetic fields, chemical detection and other parameters. The availability of this sensor capability has been used in a range of applications including oil and gas exploration and extraction, industrial monitoring, homeland security and military surveillance, and smart structures.

A very important point that is understated is that fiber optic sensing systems have enabled smart oil and gas wells that are allowing North America to gain energy independence. The technology has not yet reached maturity and will likely expand and create many new applications and commercialization opportunities. A brief overview of the market will be presented.



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