[Acoustics] Measurement of the actual beam pattern of a Nortek 2DNDP

[Oosterhoff, R.T. (MIA-RIKZ)]

Hello All,
This year we deployed a Nortek 2DNDP in the river Meuse (Holland, Europe).
This is a river of approximately 130 m wide and 5 m of depth. Before the
deployment we have measured the actual beam pattern of one of the
transducers. With a hydrophone the amplitude was measured in a range from
-90º to +90º. All was done in an anechoic basin at the TNO FEL facilities
(The Hague). In case problems will occur with side lobe interference we will
be able to verify this with the data. If anyone has performed a similar
study, please let us know so we can share knowledge. Furthermore, if anyone
is interested in the data, the data and the report are available, though the
report is written in Dutch. 

With regards from Holland,

Rijk Oosterhoff
Consultant & project manager
National Inst. for Coastal and Marine Management
P.O. Box 20907
2500 EX Den Haag  
Netherlands
Tel. +31703114610



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