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Design and fabrication of a low frequency giant magnetostrictive transducer
Date Issued
01-08-1997
Author(s)
Dhilsha, K. R.
Indian Institute of Technology, Madras
Subrahmanyeswara Rao, B. V.P.
Rama Rao, K. V.S.
Abstract
A Tonpilz-type single ended transducer employing two rods of giant magnetostrictive materials has been fabricated and its underwater acoustic characteristics have been studied. The transducer resonated at a frequency of 3.1 kHz in air and at 2.65 kHz in water with a Q factor of 6. The TCR and RS at resonance in water have been measured to be 172.1 dB re 1 μPa/A at 1 m and -196.7 dB re 1 V/μPa respectively. The dimensions of the transducer are 60 mm in diameter and 110 mm long. © 1997 Elsevier Science S.A.
Volume
258