Operation of battery-less and wireless sensor using magnetic resonance based wireless power transfer through concrete

Kim, Jimin; Han, Minseok; Lim, Hyung Jin; Yang, Suyoung; Sohn, Hoon

doi:10.12989/sss.2016.17.4.631

Cited by 5 publications

(4 citation statements)

References 34 publications

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“…Currently, the application of modern wireless technologies of data transfer and power supply allows the problem of sensor mounting on hard-to-reach places to be solved. These technologies are applied in many industries, including various monitoring systems [22,23].…”

Section: Measurement Science and Technologymentioning

confidence: 99%

Wireless acceleration sensor of moving elements for condition monitoring of mechanisms

Sinitsin

Shestakov

2017

Meas. Sci. Technol.

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Comprehensive analysis of the angular and linear accelerations of moving elements (shafts, gears) allows an increase in the quality of the condition monitoring of mechanisms. However, existing tools and methods measure either linear or angular acceleration with postprocessing. This paper suggests a new construction design of an angular acceleration sensor for moving elements. The sensor is mounted on a moving element and, among other things, the data transfer and electric power supply are carried out wirelessly. In addition, the authors introduce a method for processing the received information which makes it possible to divide the measured acceleration into the angular and linear components. The design has been validated by the results of laboratory tests of an experimental model of the sensor. The study has shown that this method provides a definite separation of the measured acceleration into linear and angular components, even in noise. This research contributes an advance in the range of methods and tools for condition monitoring of mechanisms.

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Section: Measurement Science and Technologymentioning

confidence: 99%

Wireless acceleration sensor of moving elements for condition monitoring of mechanisms

Sinitsin

Shestakov

2017

Meas. Sci. Technol.

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“…This system detects fatigue cracks based on nonlinear ultrasonic wave modulation (Sohn et al 2014. The wireless crack detection system is later enhanced with wireless power transmission, which can resolve the power supply problem, one of the most challenging issue in wireless smart sensor research (Kim et al 2016).…”

Section: Wireless Smart Sensorsmentioning

confidence: 99%

Recent R&D activities on structural health monitoring in Korea

Kim

Sim²,

Cho³

et al. 2016

Structural Monitoring and Maintenance

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In this paper, recent research trends and activities on structural health monitoring (SHM) of civil infrastructure in Korea are reviewed. Recently, there has been increasing need for adopting smart sensing technologies to SHM, so this review focuses on smart sensing, monitoring, and assessment for civil infrastructure. Firstly, the research activities on smart sensor technology is reviewed including optical fiber sensors, piezoelectric sensors, wireless smart sensors, and vision-based sensing system. Then, a brief overview is given to the recent advances in smart monitoring and assessment techniques such as vibration-based global monitoring techniques, local monitoring with piezoelectric materials, decentralized monitoring techniques for wireless sensors, wireless power supply and energy harvest. Finally, recent joint SHM activities on several test beds in Korea are discussed to share the up-to-date information and to promote the smart sensors and monitoring technologies for applications to civil infrastructure. It includes a Korea-US joint research on test bridges of the Korea Expressway Corporation (KEC), a Korea-US-Japan joint research on Jindo cable-stayed bridge, and a comparative study for cable tension measurement techniques on Hwamyung cable-stayed bridge, and a campaign test for displacement measurement techniques on Sorok suspension bridge.

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“…A high-frequency rectangular patch antenna was proposed to demonstrate the feasibility of wireless power supply to sensors embedded in concrete in [9]. The problem of wireless power supply to sensors embedded in concrete was solved by the application of wireless power transfer technology in [10]. And the experimental setup was built to verify the transmission performance.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Optimization of Asymmetric Wireless Power Transfer in Concrete

Tian

Liu

Chen

et al. 2020

Wireless Communications and Mobile Computing

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With the rapid development of the Internet of things (IoT) technology, the application of IoT has been expanded greatly, and the disadvantages of the traditional battery power supply have become increasingly prominent. The power supply mode limits the development of the concrete structural health monitoring network. And the application of magnetic resonance coupled wireless power transfer technology can solve the problem of power supply to sensors embedded in concrete. The corrected transmission efficiency considering the concrete conductivity is proposed which establishes the relationship between the electromagnetic field and the circuit model. And the field-circuit coupled model of asymmetric wireless power transfer system in concrete is developed. The effects of radial offset and axial dislocation on the transmission efficiency at different concrete conductivity are further analyzed. The relationship between the resonant frequency and the transmission efficiency in different concrete conductivity is analyzed, and an optimization scheme is proposed to improve the transmission efficiency. Finally, the experimental setups are established, and the theoretical analysis is verified. The conclusions cannot only break through the bottleneck of the scale of the concrete structural health monitoring network but also further releases the application potential of IoT.

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Operation of battery-less and wireless sensor using magnetic resonance based wireless power transfer through concrete

Cited by 5 publications

References 34 publications

Wireless acceleration sensor of moving elements for condition monitoring of mechanisms

Wireless acceleration sensor of moving elements for condition monitoring of mechanisms

Recent R&D activities on structural health monitoring in Korea

Analysis and Optimization of Asymmetric Wireless Power Transfer in Concrete

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