[PSUBS-MAILIST] Inertial navigation, 3-axis

[hank pronk via Personal_Submersibles]

Hi Jim,
Thank you, very nice stuff, I think though it would take my entire budget to have a system like that.  I am going with an illuminated Ritchie fluid filled compass. 
Hank
--------------------------------------------
On Fri, 12/12/14, via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: [PSUBS-MAILIST] Inertial navigation, 3-axis
 To: personal_submersibles at psubs.org
Hummingbird 
 
 
  
  
 
 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&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&what=products
  
 OceanServer:
  
 http://www.oceanserver-store.com/
  
 http://www.ocean-server.com/compass.html?gclid=CKHazZGbiLMCFQpgMgodAQgALg
  
  
  
  
  
  
  
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