Distributed sensing applications of Rayleigh scattering in fiber optic cables

Duckworth, Gregory L.

doi:10.1364/aio.2013.am3b.3

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…This causes a phase shift in backscattered light, which is detected by the evaluation unit and subsequently analyzed. The application of this technology in automobile traffic has been demonstrated in [23], [24], the authors state that it is possible to monitor more traffic parameters (such as vehicle detection, direction, speed) using a single optical fiber.…”

Section: B Fiber Optic and Optical Sensorsmentioning

confidence: 99%

PDMS-FBG-Based Fiber Optic System for Traffic Monitoring in Urban Areas

et al. 2020

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This article introduces fiber Bragg grating (FBG) system for monitoring selected traffic flow parameters in urban areas. The system is able to monitor traffic density or speed of cars driving in single lane. The proposed system consists of five Bragg gratings encapsulated in Polydimethylsiloxane polymer and is characterized by easy and inexpensive installation in the milled upper layer of the road covered with an asphalt mixture. The results of first operational tests presented in this study include 3978 passing vehicles of various specifications. The system's vehicle detection success rate is 99.62%. And further, a mean absolute error 1.35 kph and a relative error 2.62% when measuring vehicle speed.

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Section: B Fiber Optic and Optical Sensorsmentioning

confidence: 99%

PDMS-FBG-Based Fiber Optic System for Traffic Monitoring in Urban Areas

et al. 2020

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“…Another technology under discussion today is the DAS (Distributed Acoustic Sensor). DAS technology [22,23] uses a single optical fiber to monitor multiple traffic variables, such as detecting a car, its direction, its speed, etc.…”

Section: Fiber Optic and Optical Sensorsmentioning

confidence: 99%

Portable Optical Fiber Bragg Grating Sensor for Monitoring Traffic Density

et al. 2019

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The paper examines the development of a portable sensor strip with fiber optic Bragg grating for monitoring urban traffic density up to 80 kph. It contains a 2.5-m-long and a 2-cm-high sensor created from a combination of silicone addition rubber (bicomponent addition silicone rubber) and Bragg grating placed inside a carbon tube. The design of the portable sensor permits traffic density and cars crossings to be monitored and detected in a single lane. The functionality of the sensor was verified in real traffic; the results of this study are based on the detection of 1518 vehicles of different types and sizes. According to the measurements, the sensor is characterized by a high detection rate of 98.946%.

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“…Distributed Acoustic Sensing (DAS) can detect and locate mechanical vibrations along long structures in real time, so is naturally suited for rail and train monitoring. In railway applications, various acoustic sources can reach the sensor fiber, allowing the detection of events like TPI (third party interference, including walking, digging and theft activities), vehicles, rock fall and many more [1,2,3].…”

Section: Introductionmentioning

confidence: 99%