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Passive Inclination Sensor Based on a Patch Antenna with a Reconfigurable Water Load.

Zhuoran Yi¹, Zihan Xia¹, Xianzhi Li²

¹Department of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, China.

Sensors (Basel, Switzerland)

|October 26, 2024

Summary

This summary is machine-generated.

This study introduces a novel, low-cost inclination sensor for structural health monitoring using a reconfigurable water-load patch antenna. It accurately detects structural tilt by measuring changes in resonant frequency, offering a practical alternative to traditional sensors.

Keywords:

health monitoring historical building inclination detection passive patch antenna water load

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Area of Science:

Electrical Engineering
Materials Science
Civil Engineering

Background:

Continuous structural health monitoring is crucial for historical building safety and value preservation.
Traditional inclination sensors face limitations due to cost and wiring complexity, hindering widespread application.

Purpose of the Study:

To propose and validate a low-cost inclination sensor for structural health monitoring.
To leverage a reconfigurable water-load patch antenna for inclination detection.

Main Methods:

Theoretical investigation of the relationship between dielectric properties and inclination.
Electromagnetic simulation using High-Frequency Structure Simulator (HFSS 15) for design optimization.
Experimental validation of the antenna sensor's performance.

Main Results:

The proposed sensor demonstrates a strong correlation (0.9771) between inclination and resonant frequency variation.
Achieved a sensitivity of 7.92 MHz/° for inclination detection.
Simulation and experimental results confirm the sensor's accuracy and sensitivity.

Conclusions:

The reconfigurable water-load patch antenna sensor offers a viable, cost-effective solution for structural inclination monitoring.
The sensor's performance indicates significant potential for real-world applications in structural health monitoring.