&lt;title&gt;Strain monitoring of a newly developed precast concrete track for high speed railway traffic using embedded fiber optic sensors&lt;/title&gt;

Crail, S; Reichel, D.; Schreiner, U.; Lindner, Eric; Habel, Wolfgang; Hofmann, Detlef; Basedau, Frank; Brandes, Klaus; Barner, Andreas; Ecke, Wolfgang; Schroeder, Kerstin

doi:10.1117/12.472627

Cited by 7 publications

(4 citation statements)

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“…After verification and improvement of performance parameters in the laboratory, the stability and reliability of the developed FBG sensors and measurement systems have been tested successfully in first field applications at Siemens (power generators), DaimlerChrysler (aircraft structures), Kayser-Threde (spacecraft, airship), and GESO companies (rock-bolts for mining and other geotechnical/civil structures), BAM (railway tracks 13 ).…”

Section: Applicationsmentioning

confidence: 99%

Potential low-cost optical fiber Bragg grating sensor systems for structural health monitoring and examples of their application

Willsch¹,

Ecke²

2002

SPIE Proceedings

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Section: Applicationsmentioning

confidence: 99%

Potential low-cost optical fiber Bragg grating sensor systems for structural health monitoring and examples of their application

Willsch¹,

Ecke²

2002

SPIE Proceedings

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“…Another use of interferometric sensors was described in [19,20]. The authors of [19] reflected on the use of an acoustic fiber-optic sensor to monitor railway infrastructure from a long distance on the basis of an interferometric connection.…”

Section: State-of-the-artmentioning

confidence: 99%

“…The authors of [19] reflected on the use of an acoustic fiber-optic sensor to monitor railway infrastructure from a long distance on the basis of an interferometric connection. The work in [20] described the implementation of optical sensors with a Fabry-Perot interferometer during the production of pre-stressed, pre-fabricated concrete, and steel sleepers. These sensors can be used to calculate the number of axles, as well as the direction and speed of a train with additional sensors.…”

Section: State-of-the-artmentioning

confidence: 99%

Use of Fiber-Optic Sensors for the Detection of the Rail Vehicles and Monitoring of the Rock Mass Dynamic Response Due to Railway Rolling Stock for the Civil Engineering Needs

et al. 2019

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The paper describes the original results of a comparative study of the standard seismic station vs. a novel interferometric sensor for civil engineering needs. The presented results showed that to implement seismic measurements using standard seismic stations, a method using a fiber optic interferometer may serve as an alternative. We presented time records and the frequency spectra obtained from experimental measurements of the dynamic response of the upper rock mass beneath passing tram vehicles (a total of 769 passes) over a period of five months of practical measurements under various climatic conditions. The fiber-optic sensor detected all phenomena at a 100% rate, and the recorded results were compared to the results from a standard seismic station. Both sets of results were recorded simultaneously and agreed significantly, especially in terms of frequency. With regard to time, all tram vehicle axles were detected in individual time records. With regard to frequency, the results detected in the bandwidth generally correlated to rail transport for individual types of tram vehicles.

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“…Preliminary data were obtained and the bridge would be monitored for the next few years. Crail et al [26] reported on utilizing fiber-optic sensors to monitor the condition of high speed track systems. Fiber-optic sensors were embedded in several levels and locations of the track system.…”

Section: Figure 12 Overview Of Taylor's Bridge [23]mentioning

confidence: 99%

State of the Art Review on Bridges Structural Health Monitoring (Tools and Inspection)

Khalil

Heiza

Nawawy

2016

The International Conference on Civil and Architecture Engineer

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Traditionally, modern nondestructive evaluation techniques have been utilized to test bridges. Numerous nondestructive test procedures are available for use on bridge components. A single nondestructive testing technique could not give the inspector all the information he needs to obtain. In this chapter, the methods that are being successfully used in bridge inspection are presented. The physical principles of these techniques are briefly outlined. The latest research on their use is briefly stated. Their advantages and disadvantages are stated. Visual inspection of structural elements in bridges is the most basic approach to nondestructive evaluation. There are many advantages to visual inspection that include: (1) it requires minimal equipment, (2) it is one of the easiest to conduct, and (3) it is less time consuming and more economical than the more advanced nondestructive evaluation methods. Most bridge cracking problems have been discovered visually. Visual inspection detects obvious surface discontinuities only in the accessible areas of bridges. Among the limitations of the visual inspection is the subjectivity of the results as the method relies primarily on the inspector capabilities. The size of the detected defect depends on several variables: inspector visual acuity, lighting conditions, surface preparation, and viewing angle [1 In the United States, visual inspection is a primary component of both routine and in-depth inspections. A recent study conducted by FHWA [ ]. Consequently, relying only on visual inspection may lead to dangerous consequences.

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<title>Strain monitoring of a newly developed precast concrete track for high speed railway traffic using embedded fiber optic sensors</title>

Cited by 7 publications

References 0 publications

Potential low-cost optical fiber Bragg grating sensor systems for structural health monitoring and examples of their application

Potential low-cost optical fiber Bragg grating sensor systems for structural health monitoring and examples of their application

Use of Fiber-Optic Sensors for the Detection of the Rail Vehicles and Monitoring of the Rock Mass Dynamic Response Due to Railway Rolling Stock for the Civil Engineering Needs

State of the Art Review on Bridges Structural Health Monitoring (Tools and Inspection)

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