한국수산과학회

ISSN NUMBER

  • pISSN
  • :
  • 0374-8111
  • |
  • eISSN
  • :
  • 2287-8815

Open Access Journal

UTIL MENU



검색

kfas, vol. 54, no. 6, pp.1036-1044, December, 2021
DOI. https://doi.org/10.5657/KFAS.2021.1036

Improved FOM (Figure of Merit) Performance Characteristics of a Linear
Array Underwater Acoustic Transducer with a Gradual Wedge-shaped
Tail Mass
완만한 쐐기형 Tail Mass를 갖는 선형배열 수중음향변환기의 FOM (Figure
of Merit) 성능특성 개선

이대재*
부경대학교 해양생산시스템관리학부

A linear array acoustic transducer with 12 tonpilz elements mounted independently on a gradual wedge-shaped tail
mass was fabricated, tested and analyzed. The compensated transducer, which is modified by including a series inductance
of 137 μH in the developed linear array transducer, attained improved figure of merit (FOM) performance
characteristics compared with the uncompensated transducer. The four resonant frequency bands were identified from
the measured FOM curve. The FOM response patterns over the frequency ranges of 31 to 40 kHz and 50 to 60 kHz
were relatively uniform, whereas sharp resonance peaks were observed at around 73 kHz and 84 kHz. These results
indicate that the developed linear array transducer can be used as an enhanced broadband transducer of echo sounder,
and the operating frequency can be selected for more effective echo surveys in the fishing ground.

Keyword : FOM performance, Linear array transducer, Wedge-shaped tail mass, Matching inductance

Download :


Copyrightⓒ 2014 The Korean Society of Fisheries and Aquatic Science
All Rights Reserved.

Editorial Office Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 608-737, Korea TEL : 82.51.629.7363 | FAX : 82.51.626.1039 | E-mail : kosfas@kosfas.or.kr