Abstract
Our research aims to develop a new generation of ultrasensitive strain sensors with wireless communication of data and energy, low power consumption, and easy installation within structures to be used as in-situ measurement systems. The sensor has been developed based on RFID sensing technology that allows wireless data and power transmission by inductive coupling between the internal inductance of the sensor and the external readout coil. Microfabrication technology is used to fabricate the sensor by patterning a metallic LC circuit on a flexible substrate. Nano cracks are introduced to the electrode to create a piezoresistive effect that leads to a transmission line behavior of the capacitance electrodes. The sensor has been embedded with GFRP and CFRP, a bending test has been performed, and the sensor is used to measure the strain during the test. The sensor proves its ability to detect small strains in the composite structures due to the unconventional change in capacitance of the LC oscillator. This unconventional change in capacitance results in a large shift in resonance frequency, producing a sensitive wireless strain sensor with a Gauge factor of 50 for less than 1% strain.
Original language | English (US) |
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Title of host publication | Structural Health Monitoring 2023 |
Subtitle of host publication | Designing SHM for Sustainability, Maintainability, and Reliability - Proceedings of the 14th International Workshop on Structural Health Monitoring |
Editors | Saman Farhangdoust, Alfredo Guemes, Fu-Kuo Chang |
Publisher | DESTECH PUBLICATIONS, INC |
Pages | 1086-1091 |
Number of pages | 6 |
ISBN (Electronic) | 9781605956930 |
State | Published - 2023 |
Event | 14th International Workshop on Structural Health Monitoring: Designing SHM for Sustainability, Maintainability, and Reliability, IWSHM 2023 - Stanford, United States Duration: Sep 12 2023 → Sep 14 2023 |
Publication series
Name | Structural Health Monitoring 2023: Designing SHM for Sustainability, Maintainability, and Reliability - Proceedings of the 14th International Workshop on Structural Health Monitoring |
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Conference
Conference | 14th International Workshop on Structural Health Monitoring: Designing SHM for Sustainability, Maintainability, and Reliability, IWSHM 2023 |
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Country/Territory | United States |
City | Stanford |
Period | 09/12/23 → 09/14/23 |
Bibliographical note
Publisher Copyright:© 2023 by DEStech Publi cations, Inc. All rights reserved
ASJC Scopus subject areas
- Computer Science Applications
- Civil and Structural Engineering
- Safety, Risk, Reliability and Quality
- Building and Construction