scholarly journals Intensity evaluation of bottom backscattering between high-frequency underwater acoustic instruments and its experimental validation

2020 ◽  
Vol 147 (6) ◽  
pp. EL504-EL510
Author(s):  
Xuelei Feng ◽  
Xiyun Ge ◽  
Hongkun Zhou ◽  
Ningyang Wei
Keyword(s):  
High Frequency ◽  
Experimental Validation ◽  
Underwater Acoustic ◽  
Acoustic Instruments

scholarly journals Calculation improvement of no-load stray losses in induction motors with experimental validation

2015 ◽  
Vol 12 (3) ◽  
pp. 303-320
Author(s):  
Miloje Kostic
Keyword(s):  
High Frequency ◽  
Experimental Validation ◽  
Air Gap ◽  
New Classification ◽  
Iron Losses ◽  
Surface Iron ◽  
Space Harmonics ◽  
Rotor Cage

On the basis of the known fact that all air gap main flux density variations are enclosed by permeance slot harmonics, only one component of stray losses in rotor (stator) iron is considered in the new classification, instead of 2 components: rotor (stator) pulsation iron losses, and rotor (stator) surface iron losses. No-load rotor cage (high-frequency) stray losses are usually calculated. No-load stray losses are caused by the existence of space harmonics: the air-gap slot permeance harmonics and the harmonics produced by no-load MMF harmonics. The second result is the proof that the corresponding components of stray losses can be calculated separately for the mentioned kind of harmonics. Determination of the depth of flux penetration and calculations of high frequency iron losses are improved. On the basis of experimental validation, it is proved that the new classification of no-load stray losses and the proposed method for the calculation of the total value is sufficiently accurate.

Estimation of clock drift in underwater acoustic instruments using propagation channel analysis

2017 ◽  
Vol 141 (5) ◽  
pp. 3990-3990
Author(s):  
Ilya A. Udovydchenkov ◽  
Ballard J. Blair ◽  
Ralph A. Stephen ◽  
Peter F. Worcester ◽  
Matthew Dzieciuch
Keyword(s):  
Propagation Channel ◽  
Underwater Acoustic ◽  
Clock Drift ◽  
Acoustic Instruments ◽  
Channel Analysis

Development of a high frequency underwater acoustic intensity probe

2005 ◽  
Author(s):  
J.A. McConnell ◽  
T.C. Weber ◽  
G.C. Lauchle ◽  
T.B. Gabrielson
Keyword(s):  
High Frequency ◽  
Acoustic Intensity ◽  
Underwater Acoustic
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