A Portable Phase-Domain Magnetic Induction Tomography Transceiver with Phase-Band Auto-Tracking and Frequency-Sweep Capabilities

Chan  Sam Park; Jiyun Jeon; Byungjoo Oh; Hee  Young Chae; Kyeonghwan Park; Hungsun Son; Jae  Joon Kim

doi:10.3390/s18113816

Sensors (Nov 2018)

A Portable Phase-Domain Magnetic Induction Tomography Transceiver with Phase-Band Auto-Tracking and Frequency-Sweep Capabilities

Chan Sam Park,
Jiyun Jeon,
Byungjoo Oh,
Hee Young Chae,
Kyeonghwan Park,
Hungsun Son,
Jae Joon Kim

Affiliations

Chan Sam Park: School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
Jiyun Jeon: School of Mechanical, Aerospace and Nuclear Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
Byungjoo Oh: School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
Hee Young Chae: School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
Kyeonghwan Park: School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
Hungsun Son: School of Mechanical, Aerospace and Nuclear Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
Jae Joon Kim: School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea

DOI: https://doi.org/10.3390/s18113816
Journal volume & issue: Vol. 18, no. 11
p. 3816

Abstract

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This paper presents a portable magnetic induction tomography (MIT) transceiver integrated circuit to miniaturize conventional equipment-based MIT systems. The miniaturized MIT function is enabled through single-chip transceiver implementation. The proposed MIT transceiver utilizes a phase-locked loop (PLL) for frequency sweeping and a phase-domain sigma⁻delta modulator with phase-band auto-tracking for a full-range fine-phase resolution. The designed transceiver is fabricated and verified to achieve the measured signal to noise and distortion ratio (SNDR) of 101.7 dB. Its system-level prototype including in-house magnetic sensor coils is manufactured and functionally verified for four different material types.

Published in Sensors

ISSN: 1424-8220 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology
Website: http://www.mdpi.com/journal/sensors

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