Re: [PSUBS-MAILIST] Nav systems

[irox <irox@ix.netcom.com>]

Hi Jens,

I bought an off the shelve package to get started:
http://www.oceanserver-store.com/osevkitcowid.html

It uses a Honeywell magnetic sensor, I can't remember
which one off the top of my head, but you can probably
find which one in some docs on the ocean-server.com
website.

The Speake Sensors ones look much better quality than
the ones on my device.  The heading I get from the
Ocean Service device is rather noisy and tends to swing
around +/-3 degrees, not clean enough to do what I
want.  Getting it as far away for other devices does
help reduce the level of fluctuation. 

The FOG is a KVH E.Core RA 2000 fiber optic gyro, which
much more accurate than the Ocean Server sensors.  This
is the type used in commercial airliners.  I will try
to acquire more of these.  http://www.kvh.com/

Hope that answers your question.

Cheers!
 Ian.


-----Original Message-----
>From: Jens Laland <laland@artematrix.org>
>Sent: Jun 27, 2010 7:51 AM
>To: personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] Nav systems
>
>Ian
>
>Your project sounds pretty cool, and I am very interested to know what
>kind of hardware components you are using.
>
>Is it possible that you could provide me with some tips, types, or links?
>
>Of special interest to me would be the type of magnetometer sensor(s) you
>are using.
>
>I am considering buying mine from these guys, ref
>http://www.speakesensors.co.uk/
>
>Best regards,
>Jens Laland
>
>
>
>
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