Bistatic Microwave Sensor for In-Situ Composite Inspection and Structural Health Monitoring

Brinker, Katelyn; Case, Anna; Ghasr, Mohammad Tayeb

doi:10.1109/i2mtc50364.2021.9459936

Cited by 4 publications

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result of their inherent advantages, microwave and millimeter waves have been successfully employed in the past to non-destructively test composites of various types including fiberglass, honeycomb, radome, etc. using waveguide apertures and planar resonant probes [ 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. However, the microwave inspection of antennas embedded in composites is new and has not been investigated before.…”

Section: Introductionmentioning

confidence: 99%

Microwave NDT of Smart Composite Structures with Embedded Antennas

Rahman

Hassan

Mustapha

et al. 2023

Sensors

View full text Add to dashboard Cite

The integration of antennas in composite structures is gaining popularity with advances in wireless communications and the ever-increasing demands for efficient smart structures. Efforts are ongoing to ensure that antenna-embedded composite structures are robust and resilient to inevitable impacts, loading and other external factors that threaten the structural integrity of these structures. Undoubtedly, the in situ inspection of such structures to identify anomalies and predict failures is required. In this paper, the microwave non-destructive testing (NDT) of antenna-embedded composite structures is introduced for the first time. The objective is accomplished using a planar resonator probe operating in the UHF frequency range (~525 MHz). High-resolution images of a C-band patch antenna fabricated on an aramid paper-based honeycomb substrate and covered with a glass fiber reinforced polymer (GFRP) sheet are presented. The imaging prowess of microwave NDT and its distinct advantages in inspecting such structures are highlighted. The qualitative as well as the quantitative evaluation of the images produced by the planar resonator probe and a conventional K-band rectangular aperture probe are included. Overall, the potential utility of microwave NDT for the inspection of smart structures is demonstrated.

show abstract

Section: Introductionmentioning

confidence: 99%

Microwave NDT of Smart Composite Structures with Embedded Antennas

Rahman

Hassan

Mustapha

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…22,23 As an alternative, battery-less wireless sensors have been introduced to meet the demand for low-cost, real-time, remote detection to facilitate automated and remote monitoring of solar and electromagnetic radiation. 24,25 However, these wireless sensing platforms are not electronics-free and have not been employed for monitoring ionizing radiations as they can negatively impact the electronic components on the device. Therefore, the development of an economical, real-time chipless wireless dosimeter that can overcome the aforementioned limitations is highly desired.…”

Section: Introductionmentioning

confidence: 99%

A wireless chipless printed sensor tag for real-time radiation sterilization monitoring

et al. 2022

View full text Add to dashboard Cite

show abstract

A biodegradable chipless sensor for wireless subsoil health monitoring

Gopalakrishnan

Waimin

Zareei

et al. 2022

Sci Rep

View full text Add to dashboard Cite

Precision Agriculture (PA) is an integral component of the contemporary agricultural revolution that focuses on enhancing food productivity in proportion to the increasing global population while minimizing resource waste. While the recent advancements in PA, such as the integration of IoT (Internet of Things) sensors, have significantly improved the surveillance of field conditions to achieve high yields, the presence of batteries and electronic chips makes them expensive and non-biodegradable. To address these limitations, for the first time, we have developed a fully Degradable Intelligent Radio Transmitting Sensor (DIRTS) that allows remote sensing of subsoil volumetric water using drone-assisted wireless monitoring. The device consists of a simple miniaturized resonating antenna encapsulated in a biodegradable polymer material such that the resonant frequency of the device is dependent on the dielectric properties of the soil surrounding the encapsulated structure. The simple structure of DIRTS enables scalable additive manufacturing processes using cost-effective, biodegradable materials to fabricate them in a miniaturized size, thereby facilitating their automated distribution in the soil. As a proof-of-concept, we present the use of DIRTS in lab and field conditions where the sensors demonstrate the capability to detect volumetric water content within the range of 3.7–23.5% with a minimum sensitivity of 9.07 MHz/%. Remote sensing of DIRTS can be achieved from an elevation of 40 cm using drones to provide comparable performance to lab measurements. A systematic biodegradation study reveals that DIRTS can provide stable readings within the expected duration of 1 year with less than 4% change in sensitivity before signs of degradation. DIRTS provides a new steppingstone toward advancing precision agriculture while minimizing the environmental footprint.

show abstract

Bistatic Microwave Sensor for In-Situ Composite Inspection and Structural Health Monitoring

Cited by 4 publications

References 16 publications

Microwave NDT of Smart Composite Structures with Embedded Antennas

Microwave NDT of Smart Composite Structures with Embedded Antennas

A wireless chipless printed sensor tag for real-time radiation sterilization monitoring

A biodegradable chipless sensor for wireless subsoil health monitoring

Contact Info

Product

Resources

About