RE: [PSUBS-MAILIST] RFC - Standard Thru-Hull Electrical Connector

["Jay K. Jeffries" <bottomgun@mindspring.com>]

Jens,
It is much easier to steer an acoustic array by phasing signals than by
mechanical means...plus it is much more reliable.  Great diagrams to
illustrate your point and a neat idea.
R/Jay

-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Jens Laland
Sent: Friday, December 18, 2009 7:58 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] RFC - Standard Thru-Hull Electrical Connector

Hi all...

** I am hoping that the thru hull threads into pipe coupling as
** Frank mentioned.

It would therefore be interesting to know what size of thru-hull threading
the 10-pin connector version is furnished with.

My question :

Is it feasible to use a suitable pipe coupling that could possibly
accommodate both sizes (i.e. using an insert reducer for the smallest 4-pin
connector)?

Reason for asking :

It would be a whole lot easier to conduct prototype testing of future
underwater sound equipment.

Sketches :

a) background

ftp://ftp.artematrix.org/sonar/binaural-listening/psubs/beam-forming_600w.jp
g

The above sketch shows the principle of binaural listening using acoustic
beam forming (with a prototype under construction).
However, another system, using electronic beam forming, is under planning.

b) required conductors for the following
  * 3 ea. hydrophones (each pair covering 120 degrees)
  * 1 ea. projector
  * Grounded Shield
  * 12VDC power to Hydrophone Pre-Amplifiers

ftp://ftp.artematrix.org/psubs/standards/thru-hull_connectors/10-connector_o
ption.jpg

Best regards,
Jens Laland





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