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Hi David,
Maybe you could sell it to the French and British navy for
thier nuclear submarines.
Two things; first if it was to avoid collision on the
surface it would need a big range to detect a fizz boat zeroing in at 30
knots (15 meters per second ). The second is, is it
any more advantageous than a depth sounder that you can pick up for
the same price ?
regards Alan
----- Original Message -----
Sent: Sunday, May 17, 2009 9:17 PM
Subject: [PSUBS-MAILIST] new sonar
I am in the process of developing a passive sonar that's
primary purpose will be for collision avoidance.
It will consist of
a small electronic enclosure box with but a single amplification channel
contained within. A single hyper sensitive passive hydrophone that is
directional would be mounted facing forward. The output would be monitored by
either headphones or a small dedicated wall mounted speaker.
A power
isolation switch, power present indicator light, gain and volume control level
knobs will be all that will be needed to control this simple system. This
enclosure will be quite small.
Prior to surfacing, the submarine
would make a complete circle so as to determine local surface traffic
conditions. Once satisfied of the level of local activity, the submarine would
proceed to a shallower depth or surface altogether.
In that no
outgoing communications will be involved in this system hence no voice
transmitter, I am looking to be able to produce each unit for about $160.00. I
would consider this a safety tool that should aid in making surfacing a bit
less hairy.
Anyone interested or have any thoughts on this
one?
David Bartsch
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