An Investigation on Wireless Communication and Power Supply Through Metal Tank Walls

Zangl, Hubert; Fuchs, Anton; Bretterklieber, Thomas; Möser, Michael; Holler, Gert

doi:10.1109/imtc.2008.4547271

Cited by 18 publications

(18 citation statements)

References 3 publications

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“…Deep penetration of magnetic fields into metal is expected at the power source AC frequency of 50 Hz, which is the frequency of our commercial power supply. Although Zangl [9,10] sought to transmit power into a metal pipe by electromagnetic induction at 50 Hz, transmission efficiency was not examined specifically. In this study, transmission efficiency is improved markedly by magnetic resonance coupling.…”

Section: Magnetic Shielding By Metalmentioning

confidence: 99%

Wireless Power Transmission into a Space Enclosed by Metal Walls Using Magnetic Resonance Coupling

Yamakawa¹,

Mizuno²,

Ishida³

et al. 2014

WET

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In this paper, a wireless power transmission system using magnetic resonance coupling was proposed and demonstrated for supplying power at high efficiency to electrical devices in a space enclosed by metal walls. This is applicable to power supply to electrical sensors or devices working in the area surrounded by metal walls. Proposed magnetic resonance coupling system is driven at a resonance frequency of 50 Hz, which is selected to avoid eddy current loss on the surrounding metals. Firstly, resonator designs and its performance limitation were described. Secondly, the equivalent circuits and theoretical transmission efficiency were presented. Finally, power transmission was experimentally demonstrated and transmission efficiency was measured in some conceivable situations. As a result, electric power of 3 W was supplied to LEDs over a stainless steel wall. When the stainless steel wall thickness was 10 mm, transmission efficiency of approximately 40% was achieved over the transmission distance of 12 cm. Moreover, in the demonstration of transmission through a metal pipe, 1.2 W of power was transmitted to LEDs in a 10 mm thick metal pipe.

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Section: Magnetic Shielding By Metalmentioning

confidence: 99%

Wireless Power Transmission into a Space Enclosed by Metal Walls Using Magnetic Resonance Coupling

Yamakawa¹,

Mizuno²,

Ishida³

et al. 2014

WET

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“…Due to the shielding effect or skin effect in metal, electromagnetic waves cannot effectively pass through metal, and especially ferrous metal barriers. However, there have still been three kinds of electromagnetic coupling-based methods achieving this target according to literature publications: inductive coupling [ 4 , 5 , 6 , 7 , 8 ], capacitive coupling [ 9 , 10 , 11 ] and magnetic resonance coupling [ 12 ]. We will describe each of these methods respectively in the following subsections.…”

Section: Methods For Through-metal-wall Power Delivery and Data Trmentioning

confidence: 99%

“…According to the published literature reports, there have been several solutions for through-metal-wall power delivery and/or data transmission without intrusive procedures like drilling holes in the metal walls. Among these solutions, one category of solutions is called electromagnetic coupling-based methods, which involve inductive coupling [ 4 , 5 , 6 , 7 , 8 ], capacitive coupling [ 9 , 10 , 11 ] and magnetic resonance coupling [ 12 ]. Some amount of power and data transmission through metal walls can be achievable using electromagnetic-based solutions.…”

Section: Introductionmentioning

confidence: 99%

Through-Metal-Wall Power Delivery and Data Transmission for Enclosed Sensors: A Review

Yang

Zhao

et al. 2015

Sensors

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The aim of this review was to assess the current viable technologies for wireless power delivery and data transmission through metal barriers. Using such technologies sensors enclosed in hermetical metal containers can be powered and communicate through exterior power sources without penetration of the metal wall for wire feed-throughs. In this review, we first discuss the significant and essential requirements for through-metal-wall power delivery and data transmission and then we: (1) describe three electromagnetic coupling based techniques reported in the literature, which include inductive coupling, capacitive coupling, and magnetic resonance coupling; (2) present a detailed review of wireless ultrasonic through-metal-wall power delivery and/or data transmission methods; (3) compare various ultrasonic through-metal-wall systems in modeling, transducer configuration and communication mode with sensors; (4) summarize the characteristics of electromagnetic-based and ultrasound-based systems, evaluate the challenges and development trends. We conclude that electromagnetic coupling methods are suitable for through thin non-ferromagnetic metal wall power delivery and data transmission at a relatively low data rate; piezoelectric transducer-based ultrasonic systems are particularly advantageous in achieving high power transfer efficiency and high data rates; the combination of more than one single technique may provide a more practical and reliable solution for long term operation.

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“…In this section we will show that the use of low frequencies even permits communication through metal walls of e.g. several millimeters of stainless steel Zangl et al (2008). Thus, a sensor can be placed inside of tanks without the need for cables or batteries.…”

Section: Environmental Influencesmentioning

confidence: 97%

Passive Wireless Devices Using Extremely Low to High Frequency Load Modulation

Zangl¹,

Möser²,

Bretterklieber³

et al. 2010

Mobile and Wireless Communications Network Layer and Circuit Level Design

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An Investigation on Wireless Communication and Power Supply Through Metal Tank Walls

Cited by 18 publications

References 3 publications

Wireless Power Transmission into a Space Enclosed by Metal Walls Using Magnetic Resonance Coupling

Wireless Power Transmission into a Space Enclosed by Metal Walls Using Magnetic Resonance Coupling

Through-Metal-Wall Power Delivery and Data Transmission for Enclosed Sensors: A Review

Passive Wireless Devices Using Extremely Low to High Frequency Load Modulation

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