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Old 18 January 2007, 11:32 PM
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Ray_li
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Default Magnetic field detection?

Are there any miniature devices to detect magnetic fields without using another magnet?

Eg. want to detect a magnet embedded into a wall.
Old 18 January 2007, 11:38 PM
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Use a Hall Effect Switch Ray

How sensors work - HART Protocol
Old 18 January 2007, 11:44 PM
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Originally Posted by Ray_li
Are there any miniature devices to detect magnetic fields without using another magnet?
.
No, but there is a similar device that creeps up your rectum and then devours you vital organs.

I'm sending one over.....
Old 18 January 2007, 11:47 PM
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Good thinking Pete.

Can these Hall Effect Switches work whilst in motion and can these be bought off the shelf?

Best I found after I did the post was a Magnetometer and they are huge.

As you very well know space is impotant when designing
Old 18 January 2007, 11:51 PM
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Speed/Motion detection??

Power Components of Midwest

Look through RS Compts and see whats available - try and get a sample to test!

Old 18 January 2007, 11:52 PM
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Originally Posted by unclebuck
No, but there is a similar device that creeps up your rectum and then devours you vital organs.

I'm sending one over.....
either that or wear a silver paper hat, eh??
Old 18 January 2007, 11:55 PM
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Originally Posted by pslewis
Speed/Motion detection??

Power Components of Midwest

Look through RS Compts and see whats available - try and get a sample to test!


Cool.

My probation period is looking safer by the day

I think this is gonna be the component to do the job. As you sai I just need a sample

Do you know any electronic/mechanical companies or contract engineers
Old 18 January 2007, 11:57 PM
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Originally Posted by Ray_li
Cool.

My probation period is looking safer by the day
You'll be safe as long as you have a Weapons Designer on your side!
Old 18 January 2007, 11:59 PM
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You may not have got my last bit of my posted.

I think this is gonna be the component to do the job. As you sai I just need a sample

Do you know any electronic/mechanical companies or contract engineers
Old 19 January 2007, 12:01 AM
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Originally Posted by Ray_li
Cool.

My probation period is looking safer by the day

I think this is gonna be the component to do the job. As you sai I just need a sample

Do you know any electronic/mechanical companies or contract engineers
Do a search and find a company in your area - tell them that you are specifying components for a big project and think their components will be ideal, could they spare a sample.

It works for me, they cannot be too helpful - they know that if I name them on the Parts List they can then claim that they supply the UKs Number 1 Nuclear Defence company with parts ........... not a bad talking point for their next client!!
Old 19 January 2007, 12:06 AM
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Don't think I'll have that much pulling power but they could be claiming they supply to the worlds largest c***** manufacture and the 4th or 6th richest man in America
Old 19 January 2007, 12:08 AM
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It works for me, they cannot be too helpful - why, at my local Tandy's they are so keen to get rid that they will agree to anything... "give me five of those resistors at only 10p each" I command - and they agree, just like that. It's right proper I tell thee.....
Old 19 January 2007, 12:09 AM
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Originally Posted by unclebuck

why don't you 'do one'
Old 19 January 2007, 12:11 AM
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Originally Posted by Ray_li
why don't you 'do one'
Do one what...?

Why don't you do a two step???
Old 19 January 2007, 12:12 AM
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Originally Posted by unclebuck
Do one what...?

Why don't you do a two step???

****
Old 19 January 2007, 12:15 AM
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Originally Posted by Ray_li
****

Here she goes....



makes Jade Goody look like a bright young thing....
Old 19 January 2007, 12:20 AM
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Originally Posted by Ray_li
Are there any miniature devices to detect magnetic fields without using another magnet?
A compass.
Old 19 January 2007, 12:21 AM
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Originally Posted by Bubba po
A compass.

not the answer I was looking for but you're correct altho a compass does have a magnet
Old 19 January 2007, 12:26 AM
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Originally Posted by Ray_li
not the answer I was looking for but you're correct altho a compass does have a magnet
Some iron filings in a little plastic bag would work, too.
Old 19 January 2007, 12:36 AM
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You need a Gaussmeter
Old 19 January 2007, 12:52 AM
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Originally Posted by Elmer Fudpucker
You need a Gaussmeter
Guassmeter/Magnetometer are massive. Unless you can point me in the direction of one that's smaller than a 9V battery
Old 19 January 2007, 01:19 PM
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Connect a coil to a sensitive galvanometer and move it around in the area you want to check. You would have to calibrate it to the Earth's magnetic field first of course.

Les
Old 19 January 2007, 01:38 PM
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I was going to suggest a compass, but realised it was another magnet !

Try Farnell HONEYWELL SS40A (1082268)

3 leg device at 85p each
Old 19 January 2007, 01:43 PM
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Originally Posted by unclebuck
No, but there is a similar device that creeps up your rectum and then devours you vital organs.

I'm sending one over.....
I think he is try to proposition you Ray

I hope he doesn't know where you live
Old 19 January 2007, 04:36 PM
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Originally Posted by Nick100
I was going to suggest a compass, but realised it was another magnet !

Try Farnell HONEYWELL SS40A (1082268)

3 leg device at 85p each
cool. and cheap
Old 19 January 2007, 04:40 PM
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Ray, use an earthworm, if you glue it to a stick near its middle it moves toward any slight magnetic pulse.

HTH
Old 19 January 2007, 04:41 PM
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not a bad idea.









Its a stupid idea
Old 19 January 2007, 04:52 PM
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Originally Posted by pslewis
Do a search and find a company in your area - tell them that you are specifying components for a big project and think their components will be ideal, could they spare a sample.

It works for me, they cannot be too helpful - they know that if I name them on the Parts List they can then claim that they supply the UKs Number 1 Nuclear Defence company with parts ........... not a bad talking point for their next client!!
you work for bae then eh

sleeze and scandal ere knocking on the door there!! hmm i wonder who pulled strings to block an investigation there then.... teflon once again!!!

Mart
Old 19 January 2007, 05:01 PM
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Originally Posted by mart360
you work for bae then eh

sleeze and scandal ere knocking on the door there!! hmm i wonder who pulled strings to block an investigation there then.... teflon once again!!!

Mart
you're wrong. he dont work for BAE
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