Contactless load monitoring in near-field with surface localized spoof plasmons—A new breed of metamaterials for health of engineering structures

Annamdas, Venu Gopal Madhav; Soh, Chee Kiong

doi:10.1016/j.sna.2016.04.037

Cited by 20 publications

(16 citation statements)

References 47 publications

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“…The future of the aerospace industry highly depends on the application of these smart structures. On the one hand, smart structures can be directly used as a power source to recharge batteries and provide energy to wireless sensors in satellites; on the other hand, they can be easily molded to any shape [2][3][4]. Very large space structures are difficult to control because of damping issues, but these problems can be resolved using smart structures [5].…”

Section: Introductionmentioning

confidence: 99%

Effects of variable resistance on smart structures of cubic reconnaissance satellites in various thermal and frequency shocking conditions

et al. 2017

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Piezoelectric materials are widely used as smart structures in cubic reconnaissance satellites because of their sensing, actuating, and energy-harvesting abilities. In this study, an analytical model is developed in specific mechanical thermal shocking conditions. A special circuit and apparatus is designed for experimentation on the basis of the inverse piezoelectric effect. An equivalent circuit method is used to establish the relationship between the resistance and peak-to-peak voltage of lead zirconate titanate used as smart materials for cubic reconnaissance satellites. Various frequencies and resistance were applied in different mechanical thermal shocking conditions. Moreover, numerical simulations are conducted in various mechanical loading conditions to determine the accumulative effect. The model provides a novel mechanism to characterize the smart structures in cubic reconnaissance satellites. A rise in temperature increases peak-to-peak voltage; a rise in frequency decreases peak-to-peak voltage; and intensified resistance decreases peak-to-peak voltage. Based on experimentation and simulation, the optimum resistance is predicted for the various frequencies and temperatures. The various conditions may correspond to the different applications of smart structures for cubic reconnaissance satellites. The analytical calculations are in good agreement with experimental and numerical calculations.

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Section: Introductionmentioning

confidence: 99%

Effects of variable resistance on smart structures of cubic reconnaissance satellites in various thermal and frequency shocking conditions

et al. 2017

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“…The differences between the output scattered parameters obtained at healthy state and in several later conditions of the engineering structure form the application principle in SHM. We have earlier applied radial-LSP sensor in contact and contactless applications for monitoring the separation of two concrete specimens, pressure inside a cycle tube, the curvature of a metallic shell, and load and deflection monitoring of a beam using this principle [12,68,77,112]. The longitudinal-LSP design is our newest entry which has a larger sensing area than the radial-LSP design.…”

Section: Non-fo Smart Materials: Metamaterialsmentioning

confidence: 99%

“…This RMSD sensitivity index provides quantitative differences between the output signals obtained at a baseline condition and those obtained at later stages. The quantity is a major yardstick for measuring sensitivity in CMA engineering [10,12,112,113,114,115]. This RMSD is given as RMSD false(%false)=true∑i=1N([yi]j−xi)2/true∑i=1Nxi2 × 100 where i = 1, 2, 3…, N represents sampling data points in the considered microwave band.…”

Section: Our Lsp Sensormentioning

confidence: 99%

A Perspective of Non-Fiber-Optical Metamaterial and Piezoelectric Material Sensing in Automated Structural Health Monitoring

Annamdas

Soh

2019

Sensors

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Metamaterials are familiar in life sciences, but are only recently adopted in structural health monitoring (SHM). Even though they have existed for some time, they are only recently classified as smart materials suitable for civil, mechanical, and aerospace (CMA) engineering. There are still not many commercialized metamaterial designs suitable for CMA sensing applications. On the other hand, piezoelectric materials are one of the popular smart materials in use for about 25 years. Both these materials are non-fiber-optical in nature and are robust to withstand the rugged CMA engineering environment, if proper designs are adopted. However, no single smart material or SHM technique can ever address the complexities of CMA structures and a combination of such sensors along with popular fiber optical sensors should be encouraged. Furthermore, the global demand for miniaturization of SHM equipment, automation and portability is also on the rise as indicated by several global marketing strategists. Recently, Technavio analysts, a well-known market research company estimated the global SHM market to grow from the current US $ 1.48 billion to US $ 3.38 billion by 2023, at a compound annual growth rate (CAGR) of 17.93%. The market for metamaterial is expected to grow rapidly at a CAGR of more than 22% and the market for piezoelectric materials is expected to accelerate at a CAGR of over 13%. At the same time, the global automation and robotics market in the automotive industry is expected to post a CAGR of close to 8%. The fusion of such smart materials along with automation can increase the overall market enormously. Thus, this invited review paper presents a positive perspective of these non-fiber-optic sensors, especially those made of metamaterial designs. Additionally, our recent work related to near field setup, a portable meta setup, and their functionalities along with a novel piezoelectric catchment sensor are discussed.

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“…The RMSD is represented as a percentage frequency function, which can increase or decrease or can be unstable with unpredictable fluctuations. This RMSD is considered as a sensitivity measure of smart materials used for engineering monitoring [6,11].…”

Section: Equipmentmentioning

confidence: 99%

Sensitivity Analysis of Metamaterial Surface Plasmon and Waveguide for Monitoring Metal Surface Profile and Concrete Crack/ Separation using Robotic-Arm Based Structural Health Monitoring

Annamdas¹,

Annamdas²,

Soh³

2018

Protocol Exchange

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Many electromagnetic (EM) metamaterial inspired designs such as localized surface plasmons (LSPs), have been extensively adopted for structural health monitoring (SHM) in the recent past. These LSPs, in contact with the 'engineering structure under inspection' generate a diagnosable surface plasmons/ wave as output, when subjected to input EM waves in the near fields. This paper, an extension to recently published article in Springer, presents a procedure to analyse the sensitivity of the output surface wave. The Springer article primarily presented a novel method of transferring 'surface waves' from within the confined boundaries of the LSP sensor to the far-off distance along a guided path. In experiments, the input-EM waves and the output-surface waves were handled by a vector network analyser via a 2D robotic arm. Signals generated by LSP sensor; and, LSP sensor plus waveguide was analysed for monitoring (a) metal shell's surface profile and (b) separation of two adjacent concrete blocks. Further, in this article, the sensitivity of the output signals using a unique root mean square deviation (RMSD) index is presented. 'strain' monitoring, which is a common issue for most ACM structures. Metamaterial inspired LSP sensors are highly non-fragile, which are manufactured as bi-material composites, made of me Most of the present designs are mostly based on the generation of \(A) 'progressive wave' that travel long distances in These EM radiations in the microwave range are harmless, and their applications for ACM engineering structure can be considered without any isolation. Hence, 'near field' based LSP sensor using the

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Contactless load monitoring in near-field with surface localized spoof plasmons—A new breed of metamaterials for health of engineering structures

Cited by 20 publications

References 47 publications

Effects of variable resistance on smart structures of cubic reconnaissance satellites in various thermal and frequency shocking conditions

Effects of variable resistance on smart structures of cubic reconnaissance satellites in various thermal and frequency shocking conditions

A Perspective of Non-Fiber-Optical Metamaterial and Piezoelectric Material Sensing in Automated Structural Health Monitoring

Sensitivity Analysis of Metamaterial Surface Plasmon and Waveguide for Monitoring Metal Surface Profile and Concrete Crack/ Separation using Robotic-Arm Based Structural Health Monitoring

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