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Edward Swaim
member


Reged: 10/29/10
Posts: 36
What is a "disrupter" for magnetic interference?
      #5116655 - 03/11/12 12:13 PM

Astronomy Shoppe, http://www.astronomy-shoppe.com/ScopeScout.htm, sells a bracket to put a Sky Scout on a large Newtonian. They include a "disrupter" to reduce magnetic interference.

Any ideas on what it is?


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ion
professor emeritus


Reged: 04/26/08
Posts: 693
Loc: Bortle Scale 2
Re: What is a "disrupter" for magnetic interference? new [Re: Edward Swaim]
      #5117639 - 03/11/12 11:37 PM

Seems like a magnet stuck to the tube in this photo.

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Craig
Vendor (Stark Labs)


Reged: 09/16/03
Posts: 762
Loc: Irvine, CA
Re: What is a "disrupter" for magnetic interference? new [Re: ion]
      #5119446 - 03/13/12 12:01 AM

The point seems to be that ferrous metal (e.g., steel) throws off the device. The bracket there is a lot taller to get it further from the metal of the tube.

Craig

--------------------
Stark Labs Astrophotography software

Borg 101 ED f/4, C8, and too many cameras to mention


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Scott in NC
Mad Hatter


Reged: 03/05/05
Posts: 6950
Loc: NC
Re: What is a "disrupter" for magnetic interference? new [Re: Edward Swaim]
      #5119867 - 03/13/12 10:02 AM

Here you go:

disruptor definition 1

disruptor definition 2

Make sure that you read the manual carefully before using it around your astro gear, as use by the unskilled can be quite dangerous!

--------------------
Clear skies,
Scott

my scopes: a few refractors (50-102mm), 2 Newts (4.5-12"), and an 8" SCT


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Edward Swaim
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Reged: 10/29/10
Posts: 36
Re: What is a "disrupter" for magnetic interference? new [Re: Scott in NC]
      #5122669 - 03/14/12 08:41 PM

That would get me arrested quick.

I realize the skyscout has to be away from iron, and I've built a standoff that works. I am still curious how a little passive gizmo would negate the interference.


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Scott in NC
Mad Hatter


Reged: 03/05/05
Posts: 6950
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Re: What is a "disrupter" for magnetic interference? new [Re: Edward Swaim]
      #5122987 - 03/15/12 12:20 AM

With all seriousness, I'd like to know as well. Unfortunately a web search didn't come up with much (hence my Star Trek nonsense post above).

--------------------
Clear skies,
Scott

my scopes: a few refractors (50-102mm), 2 Newts (4.5-12"), and an 8" SCT


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Craig
Vendor (Stark Labs)


Reged: 09/16/03
Posts: 762
Loc: Irvine, CA
Re: What is a "disrupter" for magnetic interference? new [Re: Scott in NC]
      #5135754 - 03/22/12 03:59 PM

Seriously - I think it's just a non-ferrous stand-off to get you further away from the tube so that you don't have interference with it.

Craig

--------------------
Stark Labs Astrophotography software

Borg 101 ED f/4, C8, and too many cameras to mention


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Scott in NC
Mad Hatter


Reged: 03/05/05
Posts: 6950
Loc: NC
Re: What is a "disrupter" for magnetic interference? new [Re: Craig]
      #5136161 - 03/22/12 08:11 PM

Thanks, Craig--that sounds logical.

--------------------
Clear skies,
Scott

my scopes: a few refractors (50-102mm), 2 Newts (4.5-12"), and an 8" SCT


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Edward Swaim
member


Reged: 10/29/10
Posts: 36
Re: What is a "disrupter" for magnetic interference? new [Re: Scott in NC]
      #5136402 - 03/22/12 11:03 PM

Though the standoff is longer for larger telescopes, the manufacturer provides a small, plastic rectangle with a lightning bolt embossed on it as a "disrupter" (sic). Maybe it is a magnet that one twists around until it overcomes the interference from the steel telescope tube.

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Binojunky
Carpal Tunnel


Reged: 12/25/10
Posts: 1760
Re: What is a "disrupter" for magnetic interference? new [Re: Edward Swaim]
      #5158784 - 04/06/12 09:14 AM

A bar of Romulan laxative chocolate?? DA.

Edited by Binojunky (04/06/12 09:16 AM)


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dougf
journeyman


Reged: 03/19/12
Posts: 6
Re: What is a "disrupter" for magnetic interference? new [Re: Binojunky]
      #5169930 - 04/13/12 09:37 AM

Edward, google "inverse square law" for a clear and broad definition of the physics.

Basically, the inverse square law states that the strength of the field is inversely proportional to the square of the distance from the source.


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Andy92865
newbie


Reged: 08/03/12
Posts: 3
Re: What is a "disrupter" for magnetic interference? new [Re: dougf]
      #5440939 - 09/26/12 01:03 AM

I GOT THE MOUNT FROM ASTRONOMY SHOP FOR MY Z12 AND INSTALLED IT AND THE DISRUPTER DOSE NOT WORK, ON MY DOB THE TUBE GIVES OFF TO MUCH INTERFERANCE FOR THE DISRUPTER TO DO ANY GOOD.

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Andy92865
newbie


Reged: 08/03/12
Posts: 3
Re: What is a "disrupter" for magnetic interference? new [Re: Andy92865]
      #5440940 - 09/26/12 01:04 AM

sorry about the caps

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