Re: [PSUBS-MAILIST] guide to hydrophone construction

[Jon Wallace <jonw@psubs.org>]

Thanks for that Jens.  For towing a unit relatively quickly, the 
streamlined shape is important to reduce noise from moving through the 
water.  The units David developed are very sensitive to this and one way 
I used to make sure the electronics were working after encapsulating the 
piezo element in a PVC container was to hold it under running water from 
the house faucet.  If the electronics were working you could hear the 
water running over the housing.

Jon


Jens Laland wrote:
> David & co
>
> I just found this document which contains interesting information on
> construction of hydrophones:
>
> http://www.otago.ac.nz/marinescience/downloads/Barlow%20et%20al%202008%20HydrophoneConstruction_TM-417.pdf
>
> Best regards,
> Jens Laland
>   



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