Underwater acoustic measurements of Doppler‐shifted Bragg scattering in the vertical plane from interaction with the ocean surface.

2009 ◽  
Vol 125 (4) ◽  
pp. 2540-2540
Author(s):  
Stephen D. Lynch ◽  
Gerald L. D’Spain
Keyword(s):  
Vertical Plane ◽  
Ocean Surface ◽  
Bragg Scattering ◽  
Acoustic Measurements ◽  
Underwater Acoustic

The Underwater Acoustic Signature of a Nuclear Explosion at the Ocean Surface

1980 ◽  
Author(s):  
T. C. Bache ◽  
T. G. Barker ◽  
M. G. Brown ◽  
K. D. Pyatt ◽  
H. J. Swanger
Keyword(s):  
Nuclear Explosion ◽  
Ocean Surface ◽  
Underwater Acoustic ◽  
Acoustic Signature

Mobile Acoustic Source for Underwater Acoustic Measurements

OCEANS 2006 ◽  
2006 ◽  
Author(s):  
P. Abbot ◽  
C. Gedney ◽  
D. Morton ◽  
C. Emerson
Keyword(s):  
Acoustic Measurements ◽  
Acoustic Source ◽  
Underwater Acoustic

scholarly journals Underwater Acoustic Measurements on Polyvinylidene Fluoride Transducers

1978 ◽  
Vol 5 (3) ◽  
pp. 149-157 ◽  
Author(s):  
B. Woodward ◽  
R. C. Chandra
Keyword(s):  
Polyvinylidene Fluoride ◽  
Characteristic Impedance ◽  
Thin Sheet ◽  
Piezoelectric Transducers ◽  
Thin Sheets ◽  
Acoustic Measurements ◽  
Underwater Acoustic ◽  
Source Level ◽  
Operation Parameters

Methods of making piezoelectric transducers from very thin sheets of polyvinylidene fluoride (PVDF) are discussed, together with techniques for calibrating these devices, particularly for underwater operation. Parameters measured include receiving response, source level, beamwidth, characteristic impedance and variation of impedance with frequency. Consideration is also given to the dependence of receiving response on the poling fields and temperatures used in making PVDF transducers. Because of their broadband response thin sheet PVDF transducers have been shown to be ideal for monitoring the true form of acoustic pulses underwater.

Effects of cable scattering on underwater acoustic measurements

1990 ◽  
Vol 88 (S1) ◽  
pp. S114-S114
Author(s):  
Paul T. Arveson ◽  
Stephen J. Johnson
Keyword(s):  
Acoustic Measurements ◽  
Underwater Acoustic
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