[PSUBS-MAILIST] Inertial navigation, 3-axis

[Hugh Fulton via Personal_Submersibles]

Hi Jim,

That is a really great bit of information you have posted.  I am really keen
to progress something that is afforadable.  Has anyone put together an INS
system which is low cost?

I was in touch with someone a couple of years ago who was going to do a
system for less than half what is currently available but have not heard
anything more.  Any other leads?

Regards,  Hugh 

 

 

 

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org]
On Behalf Of via Personal_Submersibles
Sent: Saturday, 13 December 2014 3:05 p.m.
To: personal_submersibles at psubs.org
Subject: [PSUBS-MAILIST] Inertial navigation, 3-axis

 

Hi Hank,

 

I'm a bit delayed in getting back to you.  Below are some links regarding
Inertial Navigation Systems (INS).  Some are specifically designed for
underwater applications.  The modules have become quite small (1" square).
My desire is to have the entire track display onscreen and download it to a
thumb drive at the end of the mission.  

 

One of the advantages of 3-axis INS is that it can provide heading, depth,
rate of ascent/descent, speed independent of current, drift, tilt, etc.

 

Obviously a starting point has to be established on the surface (GPS or
other position reference and compass heading).  However in many situations
such as when operating from a lake ramp, you could just label the launch as
"Starting Point" and call the initial heading "0" or whatever no matter
which direction you're headed assuming you're going to be returning to the
starting point.

 

SBG Systems has been making rapid advancements in accuracy and cost
reduction for INS.  However inertial changes in small, manned submersibles
are much smaller than in submarines, boats, and aircraft.  If I were to the
point of putting together a system, I would contact them for advice on which
components to use to build it.

 

Jim

 

SBG Systems:

 

http://www.sbg-systems.com/products/subsea-inertial-systems-overview

 

http://www.sbg-systems.com/products/inertial-systems-overview

 

http://www.sbg-systems.com/docs/Article-SBG-SYSTEMS-ON
<http://www.sbg-systems.com/docs/Article-SBG-SYSTEMS-ON&T.pdf> &T.pdf

 

http://www.sbg-systems.com/products/ig-30-3d-compass

 

Sparkfun:

 

https://www.sparkfun.com/products/12916

 

https://www.sparkfun.com/search/results?term=compass
<https://www.sparkfun.com/search/results?term=compass&what=products>
&what=products

 

OceanServer:

 

http://www.oceanserver-store.com/

 

http://www.ocean-server.com/compass.html?gclid=CKHazZGbiLMCFQpgMgodAQgALg

 

 

 

 

 

 

 



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