Application of high-temperature superconducting wires to magnetostrictive transducers for underwater sonar
Journal Article
·
· IEEE Transactions on Magnetics
- American Superconductor Corp., Westborough, MA (United States)
- Naval Undersea Warfare Center, New London, CT (United States)
Recently discovered cryogenic magnetostrictive materials show maximum strains greater than any room temperature materials. These cryogenic magnetostrictors can be combined with high-temperature superconducting (HTS) coils to create a sonar transducer with high efficiency and high acoustic power density. A prototype low-frequency (< 1,000 Hz) magnetostrictive transducer is described. This transducer uses a terbium-dysprosium (TbDy) magnetostrictor rod with HTS coils cooled to 50--80 K using a single-stage cryocooler. The device is designed for operation at water depths of 100 m and is believed to be the first fully integrated prototype demonstration of HTS.
- OSTI ID:
- 49643
- Report Number(s):
- CONF-930926-; ISSN 0018-9464; TRN: 95:011618
- Journal Information:
- IEEE Transactions on Magnetics, Vol. 30, Issue 4Pt2; Conference: 13. international conference on magnet technology, Victoria (Canada), 20-24 Sep 1993; Other Information: PBD: Jul 1994
- Country of Publication:
- United States
- Language:
- English
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