A Towable, Moving-Coil Acoustic Target for Low Frequency Array Calibration.
NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT NEW LONDON LAB
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A towable, low frequency sound source that employs a moving-coil transducer is described. The unit, which consists of a surplus torpedo hull and a specially designed low frequency, broadband transducer, was designed and developed at NUSCs Ft. Lauderdale Detachment. Innovations over previous moving-coil units include design improvements for better heat dissipation, increased moving-coil copper density, more rugged construction, and a stiffer laminated stainless steel and epoxy piston dome. The complete unit is the largest of its kind and produces some pressure levels in the order of 180 dBmicroPa in the 10 to 1000 Hz frequency region. Author
- Acoustic Detection and Detectors