Friday, December 6, 2024

Carbon Fiber Composite Sensors For Traffic Monitoring

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The carbon fiber sensors monitor traffic and road conditions in real-time, generate electrical energy, and enhance structural health monitoring.

The fiber-reinforced plastic-based triboelectric sensors (FRP-TESs) can detect the vehicle, and simultaneously reinforce the surrounding infrastructure, allowing for real-time monitoring and reinforcement of road infrastructure. Credit: Nano Energy (2024). DOI: 10.1016/j.nanoen.2024.109818
The fiber-reinforced plastic-based triboelectric sensors (FRP-TESs) can detect the vehicle, and simultaneously reinforce the surrounding infrastructure, allowing for real-time monitoring and reinforcement of road infrastructure. Credit: Nano Energy (2024). DOI: 10.1016/j.nanoen.2024.109818

A research team affiliated with UNIST has achieved a breakthrough in traffic monitoring technology by unveiling advanced sensors made from carbon fiber composites. These sensors can monitor traffic and road conditions in real-time while also strengthening buildings and road structures. They enable applications such as traffic condition monitoring, traffic accident detection, and traffic accident prediction through real-time tracking of vehicle position, speed, and acceleration.

Experimental results revealed that the FRP, composed of carbon fibers, glass fibers, and epoxy, generated electrical energy as tires passed over it. Remarkably, even after subjecting the FRP-TES grid to 10,000 tire passes, no discernible voltage degradation was observed, and its mechanical properties exceeded those of conventional TES systems. Carbon fiber composites offer excellent mechanical properties, weighing about a quarter as much as iron while possessing ten times greater strength. These advantages make them ideal for widespread use in various applications, surpassing traditional iron-based materials.

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Experimental results revealed that the FRP, composed of carbon fibers, glass fibers, and epoxy, generated electrical energy as tires passed over it. Remarkably, even after subjecting the FRP-TES grid to 10,000 tire passes, no discernible voltage degradation was observed, and its mechanical properties exceeded those of conventional TES systems. Carbon fiber composites offer excellent mechanical properties, weighing about a quarter as much as iron while possessing ten times greater strength. These advantages make them suitable for widespread use in various applications, surpassing traditional iron-based materials.

Future research will focus on integrating the triboelectric mechanism of FRP with Structural Health Monitoring (SHM) using carbon fiber. This integration aims to develop intelligent infrastructure capable of both traffic monitoring and structural health monitoring.

Nidhi Agarwal
Nidhi Agarwal
Nidhi Agarwal is a journalist at EFY. She is an Electronics and Communication Engineer with over five years of academic experience. Her expertise lies in working with development boards and IoT cloud. She enjoys writing as it enables her to share her knowledge and insights related to electronics, with like-minded techies.

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