Fiber optic strain, temperature and shape sensing via OFDR for ground, air and space applications

Bos, J.; Klein, Justin; Froggatt, Mark E.; Sanborn, Eric; Gifford, Dawn K.

doi:10.1117/12.2025711

Cited by 13 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By utilizing four fibres with either three or four cores, each with a number of co-localised multiplexed FBG's, the direction of the bend at each FBG location could be determined and subsequently, the total shape of the pipe could be elucidated. Post 2000's, the developed methods have been widely used on various structures and applications [35,41]. One of the most practical and successful examples that has been used in industry is FOSS on surgical needles and catheters since 2010 [40,[42][43][44][45][46][47][48][49].…”

Section: Evolution Trendmentioning

confidence: 99%

Recent developments in fibre optic shape sensing

et al. 2018

View full text Add to dashboard Cite

This paper presents a comprehensive critical review of technologies used in the development of fibre optic shape sensors (FOSSs). Their operation is based on multi-dimensional bend measurements using a series of fibre optic sensors. Optical fibre sensors have experienced tremendous growth from simple bend sensors in 1980s to full three-dimensional FOSSs using multicore fibres in recent years. Following a short review of conventional contact-based shape sensor technologies, the evolution trend and sensing principles of FOSSs are presented. This paper identifies the major optical fibre technologies used for shape sensing and provides an account of the challenges and emerging applications of FOSSs in various industries such as medical robotics, industrial robotics, aerospace and mining industry.

show abstract

Section: Evolution Trendmentioning

confidence: 99%

Recent developments in fibre optic shape sensing

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Because these frequency variations are proportional to induced strain or change in temperature, a comparison between a previous state and the actual fibre's condition yields the strain or temperature changes, as for fibre Bragg grating (FBG) sensors. 8,9 The most common technique for distributed sensing is the method of optical time-domain reflectometry (OTDR).…”

Section: Introductionmentioning

confidence: 99%

Distributed internal strain measurement of the fluid-solid state coefficients of thermal expansion below the glass transition temperature during a composite manufacturing process

Poggetti

Dyson

Sánchez

et al. 2018

Journal of Composite Materials

View full text Add to dashboard Cite

The total distributed strain produced during a vacuum-assisted resin infusion moulding composite manufacture process is measured in real time by using optical fibre sensors embedded in three different layers of a thin 5-harness satin weave flat plate cured with low-viscosity epoxy resin/cycloaliphatic polyamine epoxy resin polymer matrix. We present and discuss the chemical reaction of the epoxy resin polymer matrix adhesive to show that under manufacturing conditions, well below the glass transition point, substrates gradually come into contact with and become covered with epoxy resin polymer matrix strongly bonded to their surfaces. The fluid dynamics of the reaction system under such conditions reduces to a Cauchy equilibrium found in stressed solids, which leads to a strength of materials argument to show that the embedded, distributed optical fibres can accurately measure the motion of the surrounding epoxy resin polymer matrix before the gel point. The same argument is applied to the embedded 5-harness satin carbon fibre weave and leads immediately to an extension of the composite laminate theory for the thermodynamic liquid phase before the glass transition temperature. The predictions of the modified composite laminate theory framework are found to be consistent with experiment.

show abstract

“…According to the survey conclusion conducted by Wang et al, the most direct phenomenon caused by corrosions is the reduction of the wall thickness of a pipeline, and, as a result, the hoop strain variation can reflect the change of wall thickness directly. Optical frequency domain reflectometry (OFDR) combined with high‐performance digital signal processors is used to measure distributed strain with millimeter scale resolution and microstrain measurement precision, providing an effective method for pipeline corrosion monitoring. In this paper, a new method based on OFDR technique is proposed to monitor pipeline internal corrosion, including corrosion localization and corrosion severity evaluation.…”

Section: Introductionmentioning

confidence: 99%

Pipeline internal corrosion monitoring based on distributed strain measurement technique

Jiang

Ren

Jia

et al. 2017

Struct Control Health Monit

View full text Add to dashboard Cite

Summary Pipeline corrosion is an important issue that threatens the pipeline safety operation; therefore, the corrosion monitoring is essential. Based on the optical frequency domain reflectometry technology, which features distributed strain measurement with high resolution and high precision, a new method of pipeline internal corrosion monitoring is proposed to simultaneously locate corrosion and to evaluate corrosion severity. To verify the effectiveness and accuracy of this method, a series of tests were conducted including uniform corrosion test and local corrosion tests. These test results demonstrate that the corrosion location and corrosion severity evaluation can be achieved via the proposed distributed strain measurement, providing a valuable approach for pipeline corrosion monitoring.

show abstract

Fiber optic strain, temperature and shape sensing via OFDR for ground, air and space applications

Cited by 13 publications

References 0 publications

Recent developments in fibre optic shape sensing

Recent developments in fibre optic shape sensing

Distributed internal strain measurement of the fluid-solid state coefficients of thermal expansion below the glass transition temperature during a composite manufacturing process

Pipeline internal corrosion monitoring based on distributed strain measurement technique

Contact Info

Product

Resources

About