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Full-Text Articles in Engineering
The Design And Analysis Of A Rare Earth Iron Magnetostrictive Underwater Sound Transducer, Steven Wayne Meeks
The Design And Analysis Of A Rare Earth Iron Magnetostrictive Underwater Sound Transducer, Steven Wayne Meeks
Retrospective Theses and Dissertations
The design and analysis of a low-frequency, resonant, tonpilz type, rare earth iron underwater sound transducer using rods of Tb.27Dy.73Fe1.95 are described. An equivalent circuit is presented which predicts the performance of the transducer in the presence of eddy currents and demagnetization. The effect of eddy currents on the impedance of a rod is discussed. The predicted performance of a laminated transducer is compared with that of an unlaminated transducer. The performance of the rare earth iron transducer is compared with the performance of the same transducer with identical ceramic active elements. Data on transmitting current response, transmitting voltage response, …
A Laser Hydrophone, Steven Kenneth Barnoske
A Laser Hydrophone, Steven Kenneth Barnoske
Retrospective Theses and Dissertations
This report proposes a novel technique for measuring of acoustic fields in water. A Laser Hydrophone is proposed taking advantage of the properties of Total Internal Reflection. A theoretical analysis of the idea is presented followed by a prediction of the operating characteristics of an actual system. Actual data were taken with the proposed system and it is compared to the predicted.