Electrical fields

Diatribe
Posted 04/03/2009 - 12:46 Link
Do any of you fine people know a way of capturing electrical fields on digital?
K20D and a substantial user manual to wade through
Father Ted
Posted 04/03/2009 - 12:52 Link
What type of electrical field?
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Diatribe
Posted 04/03/2009 - 13:04 Link
Ones created at substations or on overhead power lines perhaps.
K20D and a substantial user manual to wade through
Father Ted
Posted 04/03/2009 - 13:14 Link
Nope, no idea how you would do that.

But throwing iron filings into the air to be caught by the magentic fields areound them would definitely not be a good idea.


( Unless you got someone you didn't like to do it for you )
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bforbes
Posted 04/03/2009 - 13:26 Link
I am not an electrical engineer, but I don't think you have electricity escaping to generate fields. What you may have is some magnetic fields generated by the flow of electricity or maybe some thermal patterns with the heat generated. I think magnetic fields are normally captured by photographing the particles held by the field. (As in iron filing and bar magnets) and I suppose you would use some sort of thermal imaging for the latter.
bforbes
Posted 04/03/2009 - 13:30 Link
Second thoughts! Would an infrared set up register the movements of air particles?
beachboy2
Posted 04/03/2009 - 13:39 Link
Auroras?

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bforbes
Posted 04/03/2009 - 13:45 Link
have scroll down to the Arup Building Tea Room @ link Do not think this is in the K20D manual
Diatribe
Posted 04/03/2009 - 13:56 Link
I love this image from the Sandia labs Z Machine
link
and though a time lapse image of the Z machine releasing about 80 times the world's entire electrical power usage for a brief fraction of a second, it is an electro-magnetic field, albeit a massive one. I was wondering if their was a technique of recording the fields created through domestic power generation, though they are invisible to the naked eye.
K20D and a substantial user manual to wade through
Edited by Diatribe: 04/03/2009 - 14:04
Diatribe
Posted 04/03/2009 - 14:09 Link
bforbes wrote:
have scroll down to the Arup Building Tea Room @ link Do not think this is in the K20D manual
So it is down to Electron Holography. Would probably need the Pentax DA* 20000mm f0.00001-f5.6 Super Takumar Limited Micron then. SRS don't seem to have one in stock, so I'll trawl ebay for a while.
K20D and a substantial user manual to wade through
Father Ted
Posted 04/03/2009 - 14:10 Link
Diatribe wrote:
I love this image from the Sandia labs Z Machine
link
and though a time lapse image of the Z machine releasing about 80 times the world's entire electrical power usage for a brief fraction of a second, it is an electro-magnetic field, albeit a massive one. I was wondering if their was a technique of recording the fields created through domestic power generation, though they are invisible to the naked eye.
Ah!
That is not an image of the electrical field per se.
That is the plasma created by the arcing of electrical currents. Basically, indoor lightning. You'd need a lot of power to create something like that, but it'd be good fun to see.
Getting there! Thanks to you guys

Pentax K3ii, Pentax K10d, Kit lens ( 18-55mm ), 50mm f1.7 lens, Tamron 70-300mm lens, Prinzflex 70-162 manual lens, Various old flashes.
Diatribe
Posted 04/03/2009 - 14:19 Link
bforbes wrote:
Second thoughts! Would an infrared set up register the movements of air particles?
This is the kind of thinking I'm looking for. I have never used IR, so have no clue. Anyone?
K20D and a substantial user manual to wade through
Diatribe
Posted 04/03/2009 - 14:24 Link
Father Ted wrote:
Diatribe wrote:
I love this image from the Sandia labs Z Machine
link
and though a time lapse image of the Z machine releasing about 80 times the world's entire electrical power usage for a brief fraction of a second, it is an electro-magnetic field, albeit a massive one. I was wondering if their was a technique of recording the fields created through domestic power generation, though they are invisible to the naked eye.
Ah!
That is not an image of the electrical field per se.
That is the plasma created by the arcing of electrical currents. Basically, indoor lightning. You'd need a lot of power to create something like that, but it'd be good fun to see.
True, but I suppose you would call the plasma the visible light evidence of the electrical discharge (like a lightning strike which is a kind of electrical field). I was hoping there was some form of IR or UV method that in post process would show up the contained fields, but its probably wishfull thinking.
K20D and a substantial user manual to wade through
Father Ted
Posted 04/03/2009 - 14:35 Link
I think that is wishful thinking. I don't think your average electrical field emits IR or UV. It is the interaction with its surroundings which causes that.

But I may yet stand corrected. I wonder if there are any physycists in our midsts?
Getting there! Thanks to you guys

Pentax K3ii, Pentax K10d, Kit lens ( 18-55mm ), 50mm f1.7 lens, Tamron 70-300mm lens, Prinzflex 70-162 manual lens, Various old flashes.
Diatribe
Posted 04/03/2009 - 14:49 Link
Father Ted wrote:
I think that is wishful thinking. I don't think your average electrical field emits IR or UV. It is the interaction with its surroundings which causes that.

But I may yet stand corrected. I wonder if there are any physycists in our midsts?
I suspected as much, as I guess more photos would be in circulation, and it wouldn't be referred to as the 'Secret Life Of Magnetic Fields'(a little googling showed this up). Hey ho. Nice idea though.
K20D and a substantial user manual to wade through

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