POF vibration sensor based on speckle pattern changes

Rodŕıguez-Cobo, Luis; Lomer, Mauro; Galíndez, Carlos; López‐Higuera, J. M.

doi:10.1117/12.970625

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…In reality N is the number of photo detectors inside a CCD camera [6]. When the fiber is subjected to a disturbance, the expression of the intensity is [7]: -1922 -…”

Section: Theoretical Conceptmentioning

confidence: 99%

Intrusion Detection System based on Speckle Pattern change in Fiber Optic Sensors

Abdulkareem H. Dagher,

Shehab A kadhim

2022

cbej

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الغرض من هذا البحث هو تقديم نظام اقتحام مستشعرات الألياف الضوئية بناءً على مراقبة تغيير توزيع النمط (نمط البقع) في الألياف الضوئية متعددة الأوضاع. يمكن الكشف عن الاهتزازات ومعلماتها من خلال ملاحظة التباين في نمط بقعة الخرج من الألياف الضوئية متعددة الأوضاع. يتكون تنفيذ المستشعر من ألياف متعددة الأوضاع معزولة وحساسة للاهتزاز ، وملف جانبي لشعاع كاميرا CCD ، وجهاز كمبيوتر به خوارزميات محددة لمعالجة الإشارات. نظام التطفل بسيط وغير مكلف ويمكن تنفيذه لقياس الاهتزازات والحركة في مواقع الحماية.

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“…In reality N is the number of photo detectors inside a CCD camera [6]. When the fiber is subjected to a disturbance, the expression of the intensity is [7]: -1922 -…”

Section: Theoretical Conceptmentioning

confidence: 99%

Intrusion Detection System based on Speckle Pattern change in Fiber Optic Sensors

Abdulkareem H. Dagher,

Shehab A kadhim

2022

cbej

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“…The speckle patterns can also be obtained at the output of a multimode optical fiber, as proposed initially for multimode silica fibers [17], [18] and later for POF [19]. The speckle pattern in this fibers occurs due to interference among the different coherent modes propagating in the waveguide, with different phase velocities [20].…”

Section: Polymer Optical Fibers and Speckle Patternmentioning

confidence: 99%

Structural Health Monitoring Suitable for Airborne Components Using the Speckle Pattern in Plastic Optical Fibers

et al. 2017

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Structural health monitoring (SHM) is a key factor for the correct operation in large dimension structures. In this paper, we propose and demonstrate the application of a distributed optical sensor, suitable for SHM, based on the evaluation of the speckle pattern at the output of a polymer optical fibers, aiming to evaluate the damage imposed to airborne metallic and composite structures. We propose also several algorithms to analyze the speckle data and access the imposed mechanical perturbation. The maximum sampling frequency of this method is limited by the image acquisition devices, yielding to a value of 15 Hz in our case.

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“…На протязі останнього десятиліття було розроблено давачі на основі аналізу спекл-картин на виході багатомодових волокон, зокрема для вимірювання тем-ператури [4], деформації [5,6], коливання акустичних хвиль та вібрації [7,8]. Такі давачі використовують як кварцові так і полімерні оптичні волокна (ПОВ).…”

Section: вступunclassified

Researching of modulation of radiation intensity in multimode polymer fiber under selective excitation of modes

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2014

EEJET

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POF vibration sensor based on speckle pattern changes

Cited by 12 publications

References 5 publications

Intrusion Detection System based on Speckle Pattern change in Fiber Optic Sensors

Intrusion Detection System based on Speckle Pattern change in Fiber Optic Sensors

Structural Health Monitoring Suitable for Airborne Components Using the Speckle Pattern in Plastic Optical Fibers

Researching of modulation of radiation intensity in multimode polymer fiber under selective excitation of modes

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