U.S. Navy fiber optic sensor technology

1997 ◽  
Author(s):  
Carl P. Jacobson
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Sensor Technology ◽  
Optic Sensor

An improving demodulation of interferometric fiber optic sensor technology

2013 ◽  
Author(s):  
Li Gao ◽  
Yong Li ◽  
Zhaorui Chu ◽  
Ming Wu ◽  
Nan Lin
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Sensor Technology ◽  
Optic Sensor

scholarly journals Multifunctional Extrinsic Fiber Optic Sensor to Measure Various Parameters of Liquids at the Operating Wavelength of 660nm Employing a U-Shaped Glass Rod as a Sensing Element

2019 ◽  
Vol 8 (2S3) ◽  
pp. 1418-1431
Keyword(s):  
Optical Fibers ◽  
Fiber Optic ◽  
Adiabatic Compressibility ◽  
Molar Refraction ◽  
Fiber Optic Sensor ◽  
Sensor Technology ◽  
Sensing Element ◽  
Optic Sensor ◽  
Operating Wavelength ◽  
Shaped Glass

Fiber Optic sensor technology has become more popular since early 1970’s during which the mechanism of losses from optical fibers was exploited to construct a new class of fiber optic sensors and systems. A novel fiber optic sensor has been developed by connecting a U-shaped glass element of specific dimensions between a light source of 660nm wavelength and an optical power detector by using a couple of PCS optical fibers of 200/230μm diameters of core and cladding respectively. The sensor can be employed to measure several parameters such as Refractive Index, Density, Viscosity, Ultrasonic Velocity, Molar Volume, Molar Refraction, Dielectric Constant, Acoustic Impendence, Adiabatic Compressibility, Viscous Relaxation Time, Intermolecular Free Length, Absorption Coefficient, Gibb’s Free Energy, Free Volume, Internal Pressure and their excess parameters of Toluene and tert-Butanol mixtures at 30℃ temperature and at the operating wavelength of 660nm

Application of fiber optic sensor technology in intelligent steel strands

1998 ◽  
Author(s):  
Jiaqi Chen ◽  
Heng Dai ◽  
Desheng Jiang ◽  
Dongya Sun
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Sensor Technology ◽  
Optic Sensor

The Development and the Use of Fiber Optic Sensors for the Structural Health Monitoring of Composite (GFRP) Structures

2002 ◽  
Author(s):  
Evageline Rivera ◽  
Dimos Polyzois ◽  
Douglas J. Thomson ◽  
Ningguang Xu
Keyword(s):  
Structural Integrity ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Fiber Optic Sensor ◽  
Sensor Technology ◽  
Promising Alternative ◽  
Interferometric Sensors ◽  
Optic Sensor ◽  
Composite Glass ◽  
Path Lengths

The development of a fiber optic sensor system for the long-term monitoring of composite glass fiber-reinforced polymer (GFRP) poles will be presented. There is a growing interest in developing techniques for evaluating and monitoring their structural integrity. In the past few years, fiber optic sensor technology has emerged as a promising alternative to conventional methods of monitoring such as strain gauges. Fiber optic sensors can be attached to or embedded in civil structures such as bridges, dams and buildings. They operate by responding to changes in temperature and strain on the structure. The long gauge fiber optic sensor measures the average strain between two points on a structure. Long gauges are interferometric sensors that involve phase matching two optical paths to create a maximum interference pattern at the photodetector. The strain is calculated using the distance in which the reference arm of the interferometer is moved in order to match the optical path lengths.

Fiber optic sensor technology: an overview

2000 ◽  
Vol 82 (1-3) ◽  
pp. 40-61 ◽  
Author(s):  
K.T.V. Grattan ◽  
T. Sun
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Sensor Technology ◽  
Optic Sensor
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