NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Deviation Card with GPS
From: Bill B
Date: 2006 Jul 29, 20:16 -0500
From Gary LaPook:
>
> As long as we are discussing compass deviation and compass correction
> can anybody explain this one?
>
> My car has an electronic compass installed and the directions for
> correcting it for deviation (of course the car manual didn't use these
> technical terms) has you pushing a calibration button and then driving
> the car in a slow circle. How does the compass figure out the deviation
> from just the data it can capture while the car is driven in a circle?
Darn, for an archive. Some good soul posted a link not to long ago,
probably under the compass deviation thread, which lead to a link on
compasses, GPS, fluxgate (go in circles) etc.
I do not recall the link, so unless reposted search words might be,
Innovation, magnetic compass, and Richard B. Langley, or "Getting your
bearings, the magnetic compass and GPS."
The math behind the the circle calibration is quite interesting.
If you cannot find the article, I an email off list upon request.
Bill
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From: Bill B
Date: 2006 Jul 29, 20:16 -0500
From Gary LaPook:
>
> As long as we are discussing compass deviation and compass correction
> can anybody explain this one?
>
> My car has an electronic compass installed and the directions for
> correcting it for deviation (of course the car manual didn't use these
> technical terms) has you pushing a calibration button and then driving
> the car in a slow circle. How does the compass figure out the deviation
> from just the data it can capture while the car is driven in a circle?
Darn, for an archive. Some good soul posted a link not to long ago,
probably under the compass deviation thread, which lead to a link on
compasses, GPS, fluxgate (go in circles) etc.
I do not recall the link, so unless reposted search words might be,
Innovation, magnetic compass, and Richard B. Langley, or "Getting your
bearings, the magnetic compass and GPS."
The math behind the the circle calibration is quite interesting.
If you cannot find the article, I an email off list upon request.
Bill
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to NavList@fer3.com
To , send email to NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---
