ArticleSensors (Basel, Switzerland)2021
Study of a Long-Gauge FBG Strain Sensor with Enhanced Sensitivity and Its Application in Structural Monitoring.
Article in Sensors (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Review of Multi-Scale Bridge Monitoring: An Information-Centric Framework Integrating Ground-Penetrating Radar, Distributed Optical-Fibre Sensing, and Satellite Remote Sensing for Bridge Digital Twins.Sensors (Basel, Switzerland) · 2026Review
- Long-Gauge Fiber Optic Sensors: Strain Measurement Comparison for Reinforced Concrete Columns.Sensors (Basel, Switzerland) · 2025Article
- Research on FBG Tactile Sensing Shape Recognition Based on Convolutional Neural Network.Sensors (Basel, Switzerland) · 2024Article
- Spacecraft Segment Damage Identification Method Based on Fiber Optic Strain Difference Field Reconstruction and Norm Calculation.Sensors (Basel, Switzerland) · 2023Article
- Micro-Image Strain Sensing Method for Displacement and Strain Measurement in One United Sensor.Sensors (Basel, Switzerland) · 2022Article
- Application of FBG Sensor to Safety Monitoring of Mine Shaft Lining Structure.Sensors (Basel, Switzerland) · 2022Article
- Temperature-Compensated Multi-Point Strain Sensing Based on Cascaded FBG and Optical FMCW Interferometry.Sensors (Basel, Switzerland) · 2022Article
- Application of a Single Cell Electric-SRR Metamaterial for Strain Evaluation.Materials (Basel, Switzerland) · 2021Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
A long-gauge fiber Bragg grating (FBG) strain sensor with enhanced strain sensitivity is proposed, which is encapsulated with two T-shaped metal blocks. Its fabrication method is described briefly, and the strain sensitivity can be flexibly adjusted through changing its packaging method. A series of experiments are carried out to study the packaging and its sensing properties. The experimental results show that the strain and temperature sensitivity coefficient of the sensor are three times larger than the common FBG sensors. The linearity coefficients of the FBG sensor are larger than 0.999, and the relative error of the repeatability of all sensor samples is less than 1%. Through the stability test on the actual bridge, it is revealed that the long-term stability of the sensor is excellent, and the maximum error is less than 1.5%. In addition, the proposed FBG strain sensors are used to conduct a shear strengthening experiment on a reinforced concrete (RC) beam to verify its working performance. The experimental results show that the strain change and crack propagation of the RC beam are well monitored by the sensors during the loading process.
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