Strain measurement based on SMS fiber structure sensor and OTDR

Hatta, Agus Muhamad; Permana, H. E.; Setijono, Heru; Kusumawardhani, Apriani; Sekartedjo,

doi:10.1002/mop.27903

Cited by 13 publications

(14 citation statements)

References 8 publications

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“…In this paper, we propose a novel configuration based on the SMS fiber structure and an optical time domain reflectometer (OTDR)-based interrogation technique for a long-range displacement measurement. The use of the OTDR as an interrogator for the SMS fiber structure strain and temperature sensor was proposed previously, and the capability of quasi-distributed or multi-point measurement was demonstrated [11,12]. In our configuration, the SMS fiber structure was installed on a flexible plate between two permanent poles.…”

Section: Introductionmentioning

confidence: 97%

Long-range displacement sensor based on SMS fiber structure and OTDR

et al. 2015

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This paper presents a long-range displacement measurement method by using a singlemulti-single mode (SMS) fiber structure, attached to a flexible plate between two permanent poles and the optical time domain reflectometer (OTDR)-based interrogator. The SMS fiber structure sensors are prepared with two different configurations, i.e. straight and sinusoidal configurations. It is demonstrated that the displacement sensor can perform a displacement measurement with a range from 0 mm to 150 mm with a resolution of 0.159 mm. The sinusoidal configuration provides a better sensitivity than the straight configuration. The proposed sensor offers a low cost, and it can be implemented for quasi-distributed displacement measurement which is suitable for civil structure monitoring.

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Section: Introductionmentioning

confidence: 97%

Long-range displacement sensor based on SMS fiber structure and OTDR

et al. 2015

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“…Devices that use core diameter mismatch (CDM) such as single‐mode‐multimode‐single‐mode (SMS) fibers have been just suggested as fiber sensors in response to their simple manufacturing and inexpensive cost . These SMS sensors are developed by splicing a piece of multimode fiber (MMF) between two single mode fibers (SMFs) …”

Section: Introductionmentioning

confidence: 99%

“…25 Devices that use core diameter mismatch (CDM) such as single-mode-multimode-single-mode (SMS) fibers have been just suggested as fiber sensors in response to their simple manufacturing and inexpensive cost. [26][27][28][29] These SMS sensors are developed by splicing a piece of multimode fiber (MMF) between two single mode fibers (SMFs). 27,30,31 This work proposes an SMS fiber strain sensor and a simple power meter-based interrogation technique, since only the optical power changes as strain is applied in this sensor.…”

Section: Introductionmentioning

confidence: 99%

“…[26][27][28][29] These SMS sensors are developed by splicing a piece of multimode fiber (MMF) between two single mode fibers (SMFs). 27,30,31 This work proposes an SMS fiber strain sensor and a simple power meter-based interrogation technique, since only the optical power changes as strain is applied in this sensor. The SMS sensor has already been described for vibration and curvature measurements.…”

Section: Introductionmentioning

confidence: 99%

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Strain sensing based on a core diameter mismatch structure

Fernandes

Giraldi

Sousa

et al. 2019

Micro & Optical Tech Letters

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In this paper, it is proposed and experimentally investigated a sensor structure based on a core diameter mismatch technique for strain sensing. An uncoated short section of multimode fiber is spliced between two standard single mode fibers forming the sensor structure, called the SMS (single‐mode‐multimode‐single‐mode) sensor. The proposed SMS sensor, in the strain analysis, generates destructive or constructive interference patterns as load or strain are applied, changing the power of the optical signal only, without varying the wavelength. The sensor configuration offers several motivating attributes, such as easy fabrication, low‐cost, high‐efficiency and high sensitivity, moreover allows interrogation of the optical signal using the transmitted or reflected total optical power. The results and these advantages indicate that the proposed SMS sensor device is suitable for strain measurement, which is helpful in a broad range of applications, for instance, structural health monitoring.

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“…Finally, a significant function of the OTDR is to enable multiplexing [7][8][9] and remote sensing [8][9][10] interrogation. OTDR trace loss [8,[11][12][13] or reflection peak variation [7,10] are the most attractive techniques for interrogation when OTDR is used. In the case of the OTDR trace loss and considering multiplexing and remote sensing, there is a compromise between the number of sensors to be multiplexed and the distance between sensors since the loss introduced by the sensors will be a serious limitation to the system.…”

Section: Introductionmentioning

confidence: 99%

Fiber Loop Mirror Sensors Interrogated and Multiplexed by OTDR

Giraldi

Fernandes

Ferreira

et al. 2015

J. Lightwave Technol.

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In this work two techniques for interrogation and multiplexing of fiber loop mirror (FLM) intensity sensors based on Optical Time Domain Reflectometer (OTDR) are proposed. These configurations enable series and parallel FLM sensor interrogation. A fiber taper characterized as a displacement sensor was used as the intensity sensor. The OTDR parameters were optimized in order to obtain the best results. The optimized parameters were 100 ns pulse width and 10 dB input signal attenuation which permitted to attain ~18 dB dynamic range in the operating wavelength of 1550 nm. The results show a linear behavior for both configurations with similar slope, -15.3 dB/mm, in the normalized displacement range of 0.2 mm to 0.7 mm. It was also achieved a displacement resolution of 0.027 mm and 0.093 mm, for the series and parallel configurations, respectively. Sensors multiplexing are demonstrated for both configurations and the systems do not present crosstalk. Based on the experimental results, the best configuration is the parallel one. The proposed approach is a viable alternative for multiplexing and interrogation of remote fiber sensors. Index Terms-Optical fiber sensor, Fiber loop mirror, Sensor Interrogation, OTDR.The authors would like to thank CAPES (Project BEX 4463/13-7) and

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Strain measurement based on SMS fiber structure sensor and OTDR

Cited by 13 publications

References 8 publications

Long-range displacement sensor based on SMS fiber structure and OTDR

Long-range displacement sensor based on SMS fiber structure and OTDR

Strain sensing based on a core diameter mismatch structure

Fiber Loop Mirror Sensors Interrogated and Multiplexed by OTDR

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