Thesis
Development of a system for ultrasonic communication across cylindrical metal walls
Master of Science (M.S.), Drexel University
01 Dec 2014
DOI:
https://doi.org/10.17918/etd-6522
Abstract
Ultrasonic through metal communication systems are an effective solution for transmitting data across a metal barrier when the structural integrity of the barrier cannot be compromised by physically penetrating it. Substantial improvements in through metal communication systems have been made in recent years, enabling high speed communications of up to 15 Mbps, as well as power transmission up to 30W across at walls. We have developed a system that allows for ultrasonic through metal communication across the wall of a steel tube approximately 48 mm in diameter and 12 mm in thickness. Primary challenges of 1) transducer contact, 2) curvature effect on echoes, and 3) alignment are analyzed and addressed through the use of radial mode piezoelectric transducers, transducer "horns", and Electromagnetic Acoustic Transducers (EMATs). The final system developed shows no significant loss due to changes in alignment, allows for the use of either piezoelectric transducers or EMATs externally, and has a maximum channel capacity of approximately 600kbps without echo equalization.
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Details
- Title
- Development of a system for ultrasonic communication across cylindrical metal walls
- Creators
- Cole T. Gindhart - DU
- Contributors
- Moshe Kam (Advisor) - Drexel University (1970-)Richard Anthony Primerano (Advisor) - Drexel University (1970-)
- Awarding Institution
- Drexel University
- Degree Awarded
- Master of Science (M.S.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Resource Type
- Thesis
- Language
- English
- Academic Unit
- College of Engineering (1970-2026); Electrical (and Computer) Engineering (1970-2026); Drexel University
- Other Identifier
- 6522; 991014632709804721