Health monitoring with optical fiber sensors: from human body to civil structures

Pinet, Éric; Hamel, Caroline; Glišić, Branko; Inaudi, Daniele; Miron, Nicolae

doi:10.1117/12.715186

Cited by 29 publications

(26 citation statements)

References 29 publications

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“…These include single point, long gauge, quasi-distributed and distributed sensors [3]. The most common single point sensor technology is the Fabry-Perot configuration in which two partially reflecting surfaces face each other.…”

Section: Structural Monitoring For Bridge Safetymentioning

confidence: 99%

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Photonic sensor applications in transportation security

Krohn¹

2007

SPIE Proceedings

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Section: Structural Monitoring For Bridge Safetymentioning

confidence: 99%

“…The sensing point associated with a physical perturbation can be resolved to 1 meter on a 10 km length but accuracy is reduced as distance increases. The strain resolution is 20 microstain [3].…”

Section: Grating Lines Fibermentioning

confidence: 99%

Photonic sensor applications in transportation security

Krohn¹

2007

SPIE Proceedings

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“…As a consequence, only the leaders of the OFS companies are presently successful to penetrate this exclusive market Despite challenges associated with the reality of those markets, an increasing number of OFS starts to become commercial success stories. Although temperature OFS are certainly the most widely spread in the industry with well-known applications ranging from industrial process control, energy, civil engineering to medical [1,2], pressure measurement is probably the second most important physical parameter that is successfully addressed with OFS. Actually pressure OFS have gained new market shares only in the last past five years as new applications involving mainly medical disposable sensors are now commercialized.…”

Section: Introductionmentioning

confidence: 99%

Pressure measurement with fiber-optic sensors: commercial technologies and applications

Pinet

2011

SPIE Proceedings

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Mainly three technologies are presently commercially available for pressure measurement with fiber-optic sensors: intensity-based, fiber Bragg gratings and Fabry-Pérot. The first one is probably the simplest and the cheapest but it is limited to applications where having 2 fixed or up to 4 flexible fibers is not an issue, whereas the two other technologies require only one fiber. With generally low sensitivity to pressure and prohibitive cost for non multiplexed measurements, fiber Bragg grating pressure sensors are still limited to marginal applications. Fabry-Pérot technology is the best compromise offering at affordable price a great flexibility in terms of pressure ranges, high sensitivity and miniature size suitable for most applications including disposable medical devices.

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“…Fiber-optic interferrometric sensors have advantages common to other fiber-optic sensors like small size, immunity to electromagnetic interference and reliability 1 . In addition to this they have the added advantage of providing increased sensitivity 2 .…”

Section: Introductionmentioning

confidence: 99%

Continuous monitoring of plant growth using fiber-optic interferrometric sensing

Chatterjee

Grossman

2011

SPIE Proceedings

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Dendrometers, dendrographs and dry weight measurements have been successfully used for measurements of plant growth. These sensors have been used with Linear Variable Differential Transformer (LVDT) based data logging systems for continuous monitoring. In this paper the preliminary results for a prototype technique is presented as a proof of concept for the continuous monitoring of plant growth using an approach based on fiber-optic interferrometric sensing. The advantage of this sensing technique over the others is the ability to measure and analyze with very high sensitivities such as micron changes in dimensions allowing measurements over short time spans. The sensor was mounted on a Dracaena Sanderiana (Lucky Bamboo) shoot and the change in shoot length dimensions resulted in changes in the output signal display which is in the form of interferrometric fringes. The data acquisition is performed over a long duration using labVIEW based data logging. Filtered output of the data has been presented where an attempt has been made to relate the fringes to length changes. The sensing system is nondestructive and noninvasive and has been targeted to respond to changes in stem length due to changes in plant growth parameters. The objective is to provide a measurement system to do research in optimizing plant growth in greatly reduced time spans. This form of sensing application is also applicable for monitoring the growth of plants growing at much slower rates.

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Health monitoring with optical fiber sensors: from human body to civil structures

Cited by 29 publications

References 29 publications

Photonic sensor applications in transportation security

Photonic sensor applications in transportation security

Pressure measurement with fiber-optic sensors: commercial technologies and applications

Continuous monitoring of plant growth using fiber-optic interferrometric sensing

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