Penetration-free system for transmission of data and power through solid metal barriers

Lawry, T. J.; Saulnier, G.J.; Ashdown, Jonathan; Wilt, K. R.; Scarton, H. A.; Pascarelle, S.; Pinezich, John D.

doi:10.1109/milcom.2011.6127699

Cited by 36 publications

(38 citation statements)

References 13 publications

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“…The sPPT-based channel presented in some of our earlier work [9], [23] will be used as a basis for developing and validating the proposed model. The channel referenced in these works was constructed using a pair of identical piezoelectric disk transducers composed of aPc850 material from aPc International ltd. (mackeyville, Pa), with 25.4-mm (1-in) diameters, and a thickness that gave them a nominal thickness extension resonance at 4 mHz when free-hanging in air.…”

Section: Acoustic-electric Data Transmission Channelmentioning

confidence: 99%

“…This model was constructed using two-port abcd parameters to describe linear wave propagation through its discrete electrical, mechanical, and electro-mechanical elements. Its accuracy was assessed by modeling a physical sPPT transmission channel presented in some of our previous work [9], [23]. The model was systematically tuned to fit the measured power transfer response of that 4-mHz data transmission channel, and it exhibited a very strong agreement with the measured data.…”

Section: Wideband Matching Network Transformer Modelingmentioning

confidence: 99%

“…The use of piezoelectric transducers can be very advantageous in many applications because the sPPT's formfactor can be kept small and energy conversion can be kept very efficient with careful material selection. many ultrasonic sPPT-based systems have been presented recently for power transmission [1]- [4], for data transmission [5]- [8], and for simultaneous power and data transmission [9]- [18].…”

mentioning

confidence: 99%

“…The remainder of this paper is organized as follows: section II will introduce the reader to the general sPPTbased acoustic electric channel, section III will focus on the construction of the augmented one-dimensional sPPT model, section Iv will focus on fitting the model to measured data from some of our previous work [9], [23], and section v will summarize this body of work.…”

mentioning

confidence: 99%

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Analytical modeling of a sandwiched plate piezoelectric transformer-based acoustic-electric transmission channel

Lawry

Wilt

Scarton

et al. 2012

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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The linear propagation of electromagnetic and dilatational waves through a sandwiched plate piezoelectric transformer (SPPT)-based acoustic-electric transmission channel is modeled using the transfer matrix method with mixed-domain two-port ABCD parameters. This SPPT structure is of great interest because it has been explored in recent years as a mechanism for wireless transmission of electrical signals through solid metallic barriers using ultrasound. The model we present is developed to allow for accurate channel performance prediction while greatly reducing the computational complexity associated with 2- and 3-dimensional finite element analysis. As a result, the model primarily considers 1-dimensional wave propagation; however, approximate solutions for higher-dimensional phenomena (e.g., diffraction in the SPPT's metallic core layer) are also incorporated. The model is then assessed by comparing it to the measured wideband frequency response of a physical SPPT-based channel from our previous work. Very strong agreement between the modeled and measured data is observed, confirming the accuracy and utility of the presented model.

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Section: Acoustic-electric Data Transmission Channelmentioning

confidence: 99%

Section: Wideband Matching Network Transformer Modelingmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Analytical modeling of a sandwiched plate piezoelectric transformer-based acoustic-electric transmission channel

Lawry

Wilt

Scarton

et al. 2012

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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“…Among these applications, power transformers always exploit piezoelectric transducers to generate acoustic waves propagating through a sealed metal wall for transmitting a small amount of power to the electronic devices on the other side of the metal wall, such as nuclear waste containers, gas cylinders, vacuum chambers, and pipelines [7][8][9][10], etc. However, operation of the transformer also produces acoustic noise, which could pose noise pollution to human beings.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Radiation of a Cylindrical Piezoelectric Power Transformer

Zhang

Gui-ru²,

Zhang

2013

Journal of Applied Mechanics

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Theoretical analysis is performed for the sound radiation of a cylindrical power transformer composed of piezoelectric transducers with radial polarization. The transformer is driven in thickness-stretch mode, and an exact solution is obtained for the sound pressure and sound power level in the surrounding fluid. Representative examples are used to illustrate the sound field induced by the operation of the transformer. Numerical results indicate that the electrical impedance and the thickness ratio of actuatorlsensor to metal core have considerable effects on sound radiation of the cylindrical power transformer.

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Wireless energy transfer‐based transceiver systems for power and/or high‐data rate transmission through thick metal walls using sheet‐like waveguides

Oruganti

Heo

et al. 2014

Electron. lett.

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The potential use of sheet-like waveguide-based wireless energy transfer systems for a two-way power and/or high-data rate transmissionreception through thick metal walls is investigated. The proposed system utilises the near-field evanescent wave concept to transmit energy and/or data. Compared with wireless energy transfer devices based on magnetic resonance coupling, the transmission efficiency of the investigated method is not affected by the shielding offered by metal sheets. For the investigation, a 150 × 150 mm 2 sheet-like waveguide transmitter and a cylindrical wave-cavity receiver were designed. The receiver achieved a transfer efficiency of −3.76 dB, while transmitting power through galvanised iron sheets. The prime objective of this investigation was to sustain the power and/or data transfer efficiency despite the variation of the obstructing metal wall thicknesses from 1.5 to 22.5 mm. The proposed system was designed to operate at 25 MHz, enabling 50 Mbit/s data transfer using a function generator.

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Penetration-free system for transmission of data and power through solid metal barriers

Cited by 36 publications

References 13 publications

Analytical modeling of a sandwiched plate piezoelectric transformer-based acoustic-electric transmission channel

Analytical modeling of a sandwiched plate piezoelectric transformer-based acoustic-electric transmission channel

Acoustic Radiation of a Cylindrical Piezoelectric Power Transformer

Wireless energy transfer‐based transceiver systems for power and/or high‐data rate transmission through thick metal walls using sheet‐like waveguides

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