Smart Concrete Using Optical Sensors Based on Bragg Gratings Embedded in a Cementitious Mixture: Cure Monitoring and Beam Test DOI Creative Commons
Edson Rufino de Souza,

Patrick Pinheiro,

Francisco Antônio Bezerra Coutinho

et al.

Sensors, Journal Year: 2024, Volume and Issue: 24(24), P. 7998 - 7998

Published: Dec. 14, 2024

Smart concrete is a structural element that can combine both sensing and capabilities. In addition, smart monitor the curing of concrete, positively impacting design construction approaches. if process not well developed, may develop cracks in this early stage due to shrinkage, decreasing mechanical strength. paper, system measurement using fiber Bragg grating (FBG) sensors for monitoring was developed evaluate autogenous shrinkage strain, temperature, relative humidity (RH) single system. Furthermore, K-type thermocouples were used as reference temperature sensors. The results presented maximum strains 213.64 με, 125.44 173.33 με FBG4, FBG5, FBG6, respectively. Regarding humidity, measured 98.20 %RH, which reached before 10 h. case, recorded 63.65 °C 61.85 by FBG2 thermocouple, Subsequently, specimen with FBG strain sensor embedded underwent bend test simulating beam behavior. transform simple structure like into structure, sensors’ signal maintained entire applied load cycles compared superficially positioned. test, measurements 85.65 123.71 56.38 on FBG7, FBG8, FBG3, respectively, FBG3 also strain. Therefore, confirm proposed cited parameters throughout concrete.

Language: Английский

ZnOHF-ZnO nanomaterial-coated macro-bend fiber triethylamine gas sensor working at room temperature DOI
Yannan Wang, Zhijia Liao, Jin Li

et al.

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 411, P. 135733 - 135733

Published: April 3, 2024

Language: Английский

Citations

8
Stretchable, adhesive, conductive hydrogel initiated by liquid metal complex for multi-functional sensing DOI

Yuecong Luo,

Qiannian Yang,

Minzhang Chen

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153674 - 153674

Published: July 3, 2024

Language: Английский

Citations

8
High performance three-dimensional graphene nanomaterials for environmental remediation–water purification, gas separation, gaseous pollutant sensing DOI Creative Commons
Ayesha Kausar

Essential Chem, Journal Year: 2025, Volume and Issue: 2(1), P. 1 - 20

Published: March 3, 2025

Language: Английский

Citations

0
Noise reduction and background correction of overlapped UV absorption spectra based on EWT-ASG and airPLS DOI
Shiqi Zhang, Boqiang Fan,

Kun You

et al.

Optics Communications, Journal Year: 2025, Volume and Issue: unknown, P. 131910 - 131910

Published: May 1, 2025

Language: Английский

Citations

0
Integrated Breath Analysis Technologies: Current Advances and Future Prospects DOI
Oluwagbemiga Aina,

Nadia Zine,

Guy Raffin

et al.

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 181, P. 118048 - 118048

Published: Nov. 12, 2024

Language: Английский

Citations

2
Highly-selective and temperature-compensated toluene sensor based on MOF-actuated optical WGM microresonator DOI
Mingyue Wang, Yingxuan Liu,

Yutong Sun

et al.

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: unknown, P. 136838 - 136838

Published: Oct. 1, 2024

Language: Английский

Citations

1
Pt/MOF-5 film-coated optical micro-nano fibre hydrogen sensor with humidity and temperature compensation functions DOI
Kun-Shan Yang,

Kui-Hua Ding,

W. T. Geng

et al.

Journal of Modern Optics, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 9

Published: Nov. 17, 2024

In this paper, a composite fibre structure based on thin-core (TCF), Fibre Bragg grating (FBG), and micro-nano (MNF) is proposed to achieve simultaneous sensing of humidity, temperature, hydrogen concentration by coating different functional films. Based surface plasmon resonance (SPR), TCF Au/PVA film are combined relative humidity (RH) measurement. Pt/MOF-5 coated the MNF in-situ growth method. Its refractive index (RI) changed absorbing hydrogen. temperature detection, FBG realizes compensation. above mechanisms, it shown that has RH sensitivity 0.38 nm/%RH, −0.0497 nm/°C, 0.541 nm/%. The 0.0106 which accurately compensates for crosstalk. This provides good application prospect accurate measurement concentration.

Language: Английский

Citations

0
Smart Concrete Using Optical Sensors Based on Bragg Gratings Embedded in a Cementitious Mixture: Cure Monitoring and Beam Test DOI Creative Commons
Edson Rufino de Souza,

Patrick Pinheiro,

Francisco Antônio Bezerra Coutinho

et al.

Sensors, Journal Year: 2024, Volume and Issue: 24(24), P. 7998 - 7998

Published: Dec. 14, 2024

Smart concrete is a structural element that can combine both sensing and capabilities. In addition, smart monitor the curing of concrete, positively impacting design construction approaches. if process not well developed, may develop cracks in this early stage due to shrinkage, decreasing mechanical strength. paper, system measurement using fiber Bragg grating (FBG) sensors for monitoring was developed evaluate autogenous shrinkage strain, temperature, relative humidity (RH) single system. Furthermore, K-type thermocouples were used as reference temperature sensors. The results presented maximum strains 213.64 με, 125.44 173.33 με FBG4, FBG5, FBG6, respectively. Regarding humidity, measured 98.20 %RH, which reached before 10 h. case, recorded 63.65 °C 61.85 by FBG2 thermocouple, Subsequently, specimen with FBG strain sensor embedded underwent bend test simulating beam behavior. transform simple structure like into structure, sensors’ signal maintained entire applied load cycles compared superficially positioned. test, measurements 85.65 123.71 56.38 on FBG7, FBG8, FBG3, respectively, FBG3 also strain. Therefore, confirm proposed cited parameters throughout concrete.

Language: Английский

Citations

0