From: irox <irox@ix.netcom.com>
Reply-To: personal_submersibles@psubs.org
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Hydrophone systems
Date: Thu, 10 May 2007 15:45:34 -0700 (GMT-07:00)
Hi Joseph,
yeah, I think I posted this before. I think it's a great project, but
so far have never managed to have the resouces to play with it. It is
infact open source, rather than shareware, so fixing bugs would be
possible, but would require the know-how. Although development seems
to have stopped in 2004.
And I agree with your statements, the basic sub is very reliable and
can be operating easily at a bog basic level. With lots of goodies
and toys to enhance the experience of operation as well as the fun
of tuning, modified and enhancing. But without becoming totally
dependant on technology that may fail.
Alvin Jr. is an interesting sub to me. I think we've both independantly
came up with very similar sub design - which isn't too much of a suprise,
since my design was a logical progression from a massive live board
sub to some more realistic once I learn more about subs and the issues
with them.
Cheers,
Ian.
-----Original Message-----
>From: Joseph Perkel <joeperkel@hotmail.com>
>Sent: May 10, 2007 3:22 PM
>To: personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] Hydrophone systems
>
>
>
>Hi Ian,
>
>You see now here is what I'm talking about fun! I think I may have seen
this before, perhaps you may have posted it previously, it appears to be
shareware but, if there would be bugs in the software,... it would be
beyond my capability to deal with it.
>
>Still....While employing such systems may seem on the "surface",.... to
be overly complex, I believe we can design our subs core systems to be as
simple and bullet proof as possible, while leaving room for the fun stuff
like this software running on a bullet proof laptop. If it breaks down, oh
well.
>
>If Alvin Jr. is indeed in my future, it's always been my intention to
include all manner of goodies apart from the subs basic systems...why not!
In this case, I would use a fixed omni directional hydrophone for recording
sea life sounds, as Alvin Jr is designed to be accompanied by, and in
contact with a surface support vessel. But, Alvin Jr. would in fact have a
"science rack" installed along with a manipulator and tiny ROV ala (video
ray).
>
>Do I need all this stuff?....heck no! But it is what Peter is talking
about the "Spirit" within vessels. With all this Alvin Jr. is indeed
..."Alive", without it, well...you might as well fill it with propane!
>
>Nice link Ian, thanks..I will save this!
>
>Joe
>
>
>
>
>From: irox <irox@ix.netcom.com>
>Reply-To: personal_submersibles@psubs.org
>To: personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] Hydrophone systems
>Date: Thu, 10 May 2007 17:18:22 -0400 (EDT)
>>
>>One day, when I have time (hahahaha) and submarine (oh please let me
>>have submarine one day), I will play with this project:
>> http://hasas.sourceforge.net/overview.html
>>
>>Maybe my submarine will need an IT officer for running server farm
>>to process signals. ;) If it was a quiet glider sub, this could work
>>very well.
>>
>>Cheers,
>> Ian.
>>
>>-----Original Message-----
>> >From: Joseph Perkel <joeperkel@hotmail.com>
>> >Sent: May 10, 2007 2:44 PM
>> >To: personal_submersibles@psubs.org
>> >Subject: [PSUBS-MAILIST] Hydrophone systems
>> >
>> >
>> >Peter and others,
>> >
>> >When I was considering a war-boat replica, I had gone as far a
acquiring plans for a homemade directional hydrophone.
http://www.digitalmarketingusa.com/hydrophone.html
>> >
>> >There are a number of commercial, albeit expensive units that are off
the shelf such as
http://www.sonotronics.com/html/products/receivers/mantrak.html
>> >
>> >The idea being that one could mount such a device atop a short shaft
through a simple rotating thru hull. One could have a fixed compass rose on
the inside with the bow of course aligned
>> >@ 360 deg, in order for the operator to determine and call out
bearings.
>> >
>> >When I was diving, I was fairly certain within.... I would guess a 90
deg swath of the direction of props to try to keep myself from being
blended. This is with human ears so I am quite sure these units will get
that down to the degree.
>> >
>> >If you really want to get fancy, there are software programs available
that will determine range based upon density and sound wave propagation.
This could be run on a Panasonic "Toughbook".
>> >
>> >Joe
>>
>************************************************************************************************************************************************************************************************************************The
personal submersibles mailing list complies with the US FederalCAN-SPAM Act
of 2003. Your email address appears in our databasebecause either you, or
someone you know, requested you receive messagesfrom our organization.If
you want to be removed from this mailing list simply click on thelink below
or send a blank email message to:
removeme-personal_submersibles@psubs.orgRemoval of your email address from
this mailing list occurs by anautomated process and should be complete
within five minutes ofour server receiving your request.PSUBS.ORGPO Box
53Weare, NH
03281603-529-1100***************************************************************************************************************************************************************************************!
***!
>> ******************************
>>
>>
>>
>>
>>
>>************************************************************************
>>************************************************************************
>>************************************************************************
>>The personal submersibles mailing list complies with the US Federal
>>CAN-SPAM Act of 2003. Your email address appears in our database
>>because either you, or someone you know, requested you receive messages
>>from our organization.
>>
>>If you want to be removed from this mailing list simply click on the
>>link below or send a blank email message to:
>> removeme-personal_submersibles@psubs.org
>>
>>Removal of your email address from this mailing list occurs by an
>>automated process and should be complete within five minutes of
>>our server receiving your request.
>>
>>PSUBS.ORG
>>PO Box 53
>>Weare, NH 03281
>>603-529-1100
>>************************************************************************
>>************************************************************************
>>************************************************************************
>>
>
>************************************************************************************************************************************************************************************************************************The
personal submersibles mailing list complies with the US FederalCAN-SPAM Act
of 2003. Your email address appears in our databasebecause either you, or
someone you know, requested you receive messagesfrom our organization.If
you want to be removed from this mailing list simply click on thelink below
or send a blank email message
to: removeme-personal_submersibles@psubs.orgRemoval of your email address
from this mailing list occurs by anautomated process and should be complete
within five minutes ofour server receiving your request.PSUBS.ORGPO Box
53Weare, NH
03281603-529-1100******************************************************************************************************************************************************************************************!
******************************
************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003. Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.
If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
removeme-personal_submersibles@psubs.org
Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.
PSUBS.ORG
PO Box 53
Weare, NH 03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************