Proof of Concept Novel Configurable Chipless RFID Strain Sensor

Gee, Kevin Mc; Anandarajah, Prince M.; Collins, D. A.

doi:10.3390/s21186224

Cited by 12 publications

(18 citation statements)

References 44 publications

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“…The operating principle of the sensing unit is similar to the antenna-based RFID sensor tag, such as the electrical length change caused by deformation [ 26 ], current path [ 91 ], and impedance coupling [ 92 ]. These will result in a change in the characteristics of the backscatter signal, such as RCS [ 20 , 21 , 93 ], S-parameters [ 94 ], time or frequency domain [ 95 , 96 ], and amplitude or phase domain [ 29 , 97 ]. The sensing procedures of chipless RFID sensor tags are illustrated in Figure 13 .…”

Section: Designs and Applications Of Rfid Sensor Tags In Shmmentioning

confidence: 99%

A Review of Radio Frequency Identification Sensing Systems for Structural Health Monitoring

et al. 2022

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Structural health monitoring (SHM) plays a critical role in ensuring the safety of large-scale structures during their operational lifespan, such as pipelines, railways and buildings. In the last few years, radio frequency identification (RFID) combined with sensors has attracted increasing interest in SHM for the advantages of being low cost, passive and maintenance-free. Numerous scientific papers have demonstrated the great potential of RFID sensing technology in SHM, e.g., RFID vibration and crack sensing systems. Although considerable progress has been made in RFID-based SHM, there are still numerous scientific challenges to be addressed, for example, multi-parameters detection and the low sampling rate of RFID sensing systems. This paper aims to promote the application of SHM based on RFID from laboratory testing or modelling to large-scale realistic structures. First, based on the analysis of the fundamentals of the RFID sensing system, various topologies that transform RFID into passive wireless sensors are analyzed with their working mechanism and novel applications in SHM. Then, the technical challenges and solutions are summarized based on the in-depth analysis. Lastly, future directions about printable flexible sensor tags and structural health prognostics are suggested. The detailed discussion will be instructive to promote the application of RFID in SHM.

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Section: Designs and Applications Of Rfid Sensor Tags In Shmmentioning

confidence: 99%

A Review of Radio Frequency Identification Sensing Systems for Structural Health Monitoring

et al. 2022

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“…A wide variety of chipless RFID strain sensors have been developed over the past number of years, including those published by the authors in references [6,27]. These recent publications (published within the last 12 months) collectively include a thorough comparison of the existing designs within the literature, so this feature will be omitted from this document.…”

Section: Strain Sensingmentioning

confidence: 99%

“…Secondly, strain and temperature sensor designs were presented and characterized. This included a novel strain sensor, and further key characterization was performed on another sensor previously discussed by the authors in [6]. A highly sensitive temperature sensor was also given proof-of-concept testing and the overall spectrum and interrogation requirements for a single pair of sensors was outlined.…”

Section: Introductionmentioning

confidence: 99%

“…This approach is highly suited for sensors which encode information in the null frequency of the scattering response. However, many sensors and tags within the literature appear to demonstrate that their resonant response changes shape significantly with a changing stimulus or dielectric constant variation [6,[55][56][57][58]. One limitation of this approach is that the resolution of the extracted feature is directly related to the resolution of the frequency response dataset.…”

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confidence: 99%

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Use of Chipless RFID as a Passive, Printable Sensor Technology for Aerospace Strain and Temperature Monitoring

Gee

Anandarajah

Collins

2022

Sensors

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This paper was concerned with the current level of progress towards the development of chipless radio frequency identification (RFID) sensors that are capable of sensing strain and temperature. More specifically, it was interested in the possibility that the resulting devices could be used as a passive wireless structural health monitoring (SHM) sensor technology that could be printed in situ. This work contains the development and performance characterization results for both novel strain and novel temperature sensor designs with resulting sensitivities of 9.77 MHz/%ε and 0.88 MHz/°C, respectively. Furthermore, a detailed discussion on the interrogation system required to meet the relevant aerospace sensing requirements was also discussed, and several methods were explored to enhance the multi-sensor support capabilities of this technology.

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“…Changing the dimensional parameters of the antenna changes the effective electrical length of the antenna surface, causing the resonant frequency to drift. Mc Gee et al [11] proposed a highly sensitive strain sensor and explored the effect of other factors on strain sensing in 2021; Li and Wang [12] proposed a strain and crack sensor with thermal stability for the SHM field that enables more reliable measurements in 2020.…”

Section: Introductionmentioning

confidence: 99%

An encoded reconfigurable RFID strain sensor and its information fusion method

Chen¹,

Kang²,

Liu³

et al. 2022

Smart Mater. Struct.

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Chip-based radio frequency identification (RFID) sensor systems have been investigated for structural health monitoring (SHM) applications. However, there are disadvantages to using chips in sensor tags in terms of price, robustness and detecting power. In this paper, we propose a reconfigurable RFID-based chipless tag sensor for strain detection, which detects structural strain by observing the offset of the resonant frequency of the antenna and incorporates an encoding unit for tag identification. To realize the reconfigurability of the antenna, a PIN diode is added to control the antenna, and the frequency reconfigurability of the antenna is realized by controlling the turn on/off of the PIN diodes. The Kalman filter algorithm is used to realize the information fusion of multiple sensors to improve the sensor detection accuracy, and the background noise data enhancement is used to expand the original data samples to fuse the information of the three sensors' data. The relative inaccuracy is roughly 33.5% less after fusion compared to the measurement alone. The antenna was fabricated by an etching process and measured using VNA to verify the accuracy of the antenna simulation results.

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Proof of Concept Novel Configurable Chipless RFID Strain Sensor

Cited by 12 publications

References 44 publications

A Review of Radio Frequency Identification Sensing Systems for Structural Health Monitoring

A Review of Radio Frequency Identification Sensing Systems for Structural Health Monitoring

Use of Chipless RFID as a Passive, Printable Sensor Technology for Aerospace Strain and Temperature Monitoring

An encoded reconfigurable RFID strain sensor and its information fusion method

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