Optical fiber sensors embedded in concrete for measurement of temperature in a real fire test

Bueno, Antonio; Torres, Benjamín; Barrera, David; Calderón, Pedro A.; Lloris, José Manuel; López, María José; Sales, Salvador

doi:10.1117/1.3658760

Cited by 5 publications

(1 citation statement)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[7][8] In some other applications, the FBGs of special structures or novel materials are also proposed. A temperature sensor based on an optical fiber Bragg grating (FBG) can measure temperature by detecting the wavelength-shift of the reflection spectrum, 4-6 but it may be limited by high temperatures in some situations.…”

Section: Introductionmentioning

confidence: 99%

Cascade-able optical fiber delay-based temperature sensor system

Yang

Qiu

et al. 2015

Opt. Eng

View full text Add to dashboard Cite

A high-sensitivity temperature sensor based on optical fiber delay is proposed in this paper. The sensor system is designed and tested in a temperature range of 0°C to 100°C with increments of 5°C. The output delay difference is found to be linearly proportional to the temperature with an average fluctuation less than 0.1 ps. To achieve an overall low cost and practical detection, a simple detection system is developed to measure temperature, and a potential for high temperature sensitivity is shown by analyzing the system. As a result, this sensor system is proven to be feasible and practical, and temperature can be measured in a simple and economical way. Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 05/16/2015 Terms of Use: http://spiedl.org/terms

show abstract

Section: Introductionmentioning

confidence: 99%

Cascade-able optical fiber delay-based temperature sensor system

Yang

Qiu

et al. 2015

Opt. Eng

View full text Add to dashboard Cite

show abstract

Temperature monitoring experiment and numerical simulation of the orifice structure in an arch dam considering solar radiation effects

Wang

Zhang

Fan

et al. 2022

J Civil Struct Health Monit

View full text Add to dashboard Cite

Evaluation of new regenerated fiber Bragg grating high-temperature sensors in an ISO 834 fire test

Rinaudo

Torres

Payá-Zaforteza

et al. 2015

Fire Safety Journal

Self Cite

View full text Add to dashboard Cite

Abstract:Temperature, one of the most important parameters in building fires, is now mostly measured with hightemperature thermocouples, which have the typical drawbacks of electric sensors, such as their sensitivity to electrical and magnetic interference. Fiber optic sensors are an alternative to electric sensors and offer many advantages, although their use in fire engineering is somewhat limited at the present time. This paper presents a set of new fiber optic sensors for measuring high temperatures, based on Regenerated Fiber Bragg Gratings (RFBGs). The sensors were placed near the surface of two concrete specimens and then tested under ISO 834 fire curve conditions for one hour. We consider this an important step forward in the application of hightemperature fiber optic sensors in fire engineering, as the sensors were subjected to direct flames and temperature increments of the order of 200 ºC/min, similar to those in a real fire. The FBG sensors measured maximum gas temperatures of circa 970 ºC, in good agreement with those provided by thermocouples in the same position. The gas temperature measurements of the FOSs were also compared with the adiabatic temperatures measured by plate thermometers and concrete specimens surface temperatures calculated with numerical heat transfer models.

show abstract

Optical fiber sensors embedded in concrete for measurement of temperature in a real fire test

Cited by 5 publications

References 10 publications

Cascade-able optical fiber delay-based temperature sensor system

Cascade-able optical fiber delay-based temperature sensor system

Temperature monitoring experiment and numerical simulation of the orifice structure in an arch dam considering solar radiation effects

Evaluation of new regenerated fiber Bragg grating high-temperature sensors in an ISO 834 fire test

Contact Info

Product

Resources

About