Magnetometer?

[Skogsgurra]

This auction site sold a "Magnetometer" - not to me. I tried, but was overbid by several buyers the last few seconds.

http://www.tradera.com/item/2939/21...transactional_bid&utm_content=item-cta-button

Question: How does such a Magnetometer work? Anyone?

Gunnar Englund

http://www.gke.org

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Half full - Half empty? I don't mind. It's what in it that counts.

 

[IRstuff]

Interesting. It's mechanical, so it would seem that the only real possibility is a compass needle in some sort of 3 axis gimbal mount, possibly like the early magnetometers described here:

http://web.archive.org/web/20070930141937/http://www.ctsystems.eu/gauss.htm

and

http://en.wikipedia.org/wiki/Magnetometer#Early_magnetometers

TTFN
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Of course I can. I can do anything. I can do absolutely anything. I'm an expert!

 

[Pud]

Here you go. Make one yourself for detecting onset of auroras!

Magnetometer

H

www.tynevalleyplastics.co.uk

It's ok to soar like an eagle, but weasels don't get sucked into jet engines.

 

[btrueblood]

Hmmm....Skogs, are you going sub hunting?

 

[KENAT]

Nah, knowing Skogs predilection for ballistic experiments on innocent beverages if that were the case he'd be asking about hedgehogs, mighty mouse, squid, limbo and where to buy kegs of cheap lager.

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(probably not aimed specifically at you)
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[Skogsgurra]

Yeah - we've got quite a few of them. All are not on the rocks.

Pud, your bottle magnetometer is probably a lot better than the Beauty I was after. But, you know me and Beauty...

And, IR. I read those articles with great interest. I have been both building and using flux gates. They do not at all look like that antique brass piece of art and I had no idea they both do the same thing. I relly regret that I was such a cheapskate. USD 300+ and I would have had it...

Gunnar Englund

http://www.gke.org

--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.

 

[Skogsgurra]

Sorry Kenat - I was typing. So I missed your comment and, ah, well, er...

Gunnar Englund

http://www.gke.org

--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.

 

[IRstuff]

The flux gate magnetometer will be WAY more accurate and sensitive. It would take a fairly large magnetic compass to reliably resolve better than 1/2 degree, but a flux gate, could probably get down to 1/10 degree or better.

TTFN
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[IRstuff]

Oh, and most of the mechanical devices would probably be quite sensitive to ambient vibrations, so some care would be needed to ensure that you're away from busy streets, people bouncing around, etc. We had a subcontractor that used to do their alignment measurements around 3am in the morning because even a single car driving on the street about 30 ft away could be detected.

TTFN
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Need help writing a question or understanding a reply? forum1529

Of course I can. I can do anything. I can do absolutely anything. I'm an expert!