Self-referenced temperature sensor based on a polymer optical fiber macro-bend

Tapetado, A.; Pinzón, Plinio Jesús; Zubía, Joseba; Pérez, Isabel; Vázquez, Carmen

doi:10.1117/12.2059297

Cited by 5 publications

(10 citation statements)

References 8 publications

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“…Some self-reference techniques [29], [30] use a modulated optical signal at a low frequency for improving the resolution but at the expense of increasing the cost and the complexity of the system. POF sensor reported in [6] uses a selfreferencing technique that needs a dummy sensor. The main drawbacks to use a dummy sensor are the fact that the reference signal and the sensing signal follow different paths and the need to add an additional sensor.…”

Section: Discussionmentioning

confidence: 99%

“…A thermal isolated stage is performed for supporting the fiber sensor. Setting a fixed distance between the sensor and the hot plate prevents possible changes in the refractive index of the cladding due to the contact with other materials [6]. The temperature of the hot plate is controlled with a controller unit.…”

Section: Experimental Set-up and Measurementsmentioning

confidence: 99%

“…Therefore, the measured wavelength dependence of the sensor is in good agreement with theory. Specific simulations for a single wavelength using the ray tracing theory are reported in [6]. …”

Section: Experimental Set-up and Measurementsmentioning

confidence: 99%

“…Other techniques to measure the temperature with macrobend sensors have been developed using silica [5], [7], [15], [16] or POF [6] but with other self-referencing technique that needs two different physical paths for the reference and sensing signals. The main advantage of using POF fiber instead of glass fiber is the larger diameter of the former, making the sensor less fragile and easier to handle, reducing development and maintenance cost.…”

Section: Introductionmentioning

confidence: 99%

“…The sensor system is based on the ratio of the output transmittances at two different wavelengths in a single macrobend sensor to avoid possible errors related to undesired optical power fluctuations [17]. Using a single macrobend loop instead of a dummy fiber-optic sensor as in [6], provides a robust temperature sensor independent of the repeatability of the manufacturing process and the different physical path loss evolution of other self-referencing techniques.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Polymer Optical Fiber Temperature Sensor With Dual-Wavelength Compensation of Power Fluctuations

Tapetado

Pinzón

Zubía

et al. 2015

J. Lightwave Technol.

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Abstract:The design and development of a plastic optical fiber macrobend temperature sensor is presented. The sensor can op-erate in a temperature range from −55 to 70 °C and has a linear response versus temperature with a sensitivity of 8.95·10−4 °C−1. The sensor system uses the ratio of transmittance at two wave-lengths to implement a selfreferencing technique in order to avoid undesirable power fluctuations influence. The transmittance ratio precision is 0.1%. An analysis has been developed to find the two wavelengths which ratio offers the highest linearity and sensitiv-ity response. Experimental results are successfully compared with theoretical approaches.

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Section: Discussionmentioning

confidence: 99%

Section: Experimental Set-up and Measurementsmentioning

confidence: 99%

Section: Experimental Set-up and Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Polymer Optical Fiber Temperature Sensor With Dual-Wavelength Compensation of Power Fluctuations

Tapetado

Pinzón

Zubía

et al. 2015

J. Lightwave Technol.

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Temperature compensated-refractive index sensor based on Mach-Zehnder interferometer plastic optical fiber

Yulianti¹,

Putra²,

Fianti³

et al. 2023

International Conference on Applied Computational Intelligence and Analytics (Acia-2022)

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Intensity-Based Optical Systems for Fluid Level Detection

Vázquez

Montero²

2012

EEENG

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Abstract:In this work different patented optical sensing solutions are reviewed, mostly for their application of measuring fluid level within tanks, containers or bio-mass boilers in condominiums, thus providing an intrinsically safe sensing sce-nario within harsh and hazardous environments, due to the passive nature of light. In general, the intensity modulation of the light is very attractive since it is simple in concept, reliable, and can produce optical sensors which offer a wide range of applications at lower costs, thus facilitating their final commercialization and market spread. The optical sensing solu-tions discussed in this work include a fiber-optic sensor for fluid detection/level with intrinsic self-referencing property thus solving one of the main drawbacks when using intensity-based sensors, namely the undesirable and unexpected opti-cal power fluctuations when operating. Moreover, a low-cost intensity-based POF sensor for fuel level measurements in paramotoring and powered paragliding is presented. It features a very simple and a very low-cost solution for these sports, attending the increasing demand of new and more sophisticated embedded sensors in the flight instrumental. Going on from this, a fiber-optic fluid level sensor for a range greater than 2m is described. The system uses a single lens and a sin-gle fiber but being possible to increase the measuring safety area by optical multiplexing. Finally, a fluid level sensor based on a Light Dependent Resistor (LDR), which includes a temperature control scheme, is presented. Its final embodi-ment design is also shown and described.

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Self-referenced temperature sensor based on a polymer optical fiber macro-bend

Cited by 5 publications

References 8 publications

Polymer Optical Fiber Temperature Sensor With Dual-Wavelength Compensation of Power Fluctuations

Polymer Optical Fiber Temperature Sensor With Dual-Wavelength Compensation of Power Fluctuations

Temperature compensated-refractive index sensor based on Mach-Zehnder interferometer plastic optical fiber

Intensity-Based Optical Systems for Fluid Level Detection

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