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Author Topic: Microwave Cannon Math  (Read 2614 times)

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Microwave Cannon Math
« on: December 20, 2011, 02:06:18 pm »

A question for the B12 Brain Trust

How much microwave energy per square inch would be required to damage normal circuit boards, assuming that there is a thin layer of metal armor present?

How much might a microwave beam disperse over 1-2 Km with normal radar equipment? Can Masers be found cheaply enough to be deployed in any significant level?

In what way is the voltage supplied to a magnetron tied to the output intensity and frequency? Can domestic magnetrons be overdriven?

All of this is for purely civilian research, of course.
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Tellemurius

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Re: Microwave Cannon Math
« Reply #1 on: December 20, 2011, 02:16:16 pm »

do you know the joules and frequency the microwave is outputting?

Masers at levels you want will be commerical/military/research cost levels and cannot be acquired at residential levels without knowing some electrical engineering.

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Re: Microwave Cannon Math
« Reply #2 on: December 20, 2011, 02:22:35 pm »

We may have to settle for optics blinding stuff then. I've seen some good looking toys here.

Still, they fly by GPS and barely need the cameras at all, at least for the attack drones. Being able to handle the obeservation drones would still be huge.

Will need a nice optics system to aim it. Luckilly, I bet we could rig up a simple 90 degree periscope so that you aim with the center of the mirror, then when it's fired the mirror flips away and the laser activates.

Bet we could mount that puppy on a truck no problem.
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Tellemurius

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Re: Microwave Cannon Math
« Reply #3 on: December 20, 2011, 02:25:09 pm »

We may have to settle for optics blinding stuff then. I've seen some good looking toys here.

Still, they fly by GPS and barely need the cameras at all, at least for the attack drones. Being able to handle the obeservation drones would still be huge.

Will need a nice optics system to aim it. Luckilly, I bet we could rig up a simple 90 degree periscope so that you aim with the center of the mirror, then when it's fired the mirror flips away and the laser activates.

Bet we could mount that puppy on a truck no problem.
...... plz god you aren't trying to take down a government drone >_>

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Re: Microwave Cannon Math
« Reply #4 on: December 20, 2011, 02:34:59 pm »

If this post was on any other forum:
"Why is this man inquiring about equipment to damage combat drones? We should call homeland defense."

On bay12:
"cool. *shrug*"
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alway

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Re: Microwave Cannon Math
« Reply #5 on: December 20, 2011, 02:35:20 pm »

A microwave oven converts only part of its electrical input into microwave energy. A typical consumer microwave oven consumes 1100 W of electricity in producing 700 W of microwave power, an efficiency of 64%. The other 400 W are dissipated as heat, mostly in the magnetron tube.
Even assuming a best case scenario of a non-changing efficiency (more likely it would decrease rapidly as it left normal operating conditions), the magnetron tube would probably melt even from a very short period of being over-current, assuming it worked at all. So, no, microwave ovens really can't be weaponized.

Inducing a current, as is seen with forks left in a microwave, would also not be a problem for any circuitry, as any sort of metal exterior would act as a Faraday cage, even if we do assume a weapon using microwave radiation is capable of both reaching and inducing a current in a target.
« Last Edit: December 20, 2011, 02:37:41 pm by alway »
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Re: Microwave Cannon Math
« Reply #6 on: December 20, 2011, 02:50:29 pm »

If this post was on any other forum:
"Why is this man inquiring about equipment to damage combat drones? We should call homeland defense."

On bay12:
"cool. *shrug*"

PULL THE LEVER!
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Re: Microwave Cannon Math
« Reply #7 on: December 20, 2011, 03:02:40 pm »

I typed random letters and symbols in my address bar and this came up.

Note that that would mainly be effective for blocking transmissions, I think. Still, useful information there.

Going back to the optics, I'm starting to think that make more sense.

If you see a laser spot on a enemy drone, focus your laser on top of it to double heat on that point rather than trying to warm some other part.

Hmm... if we get these things hot enough, maybe we could set off the payload of a weaponized one. That would definitely cause some damage.
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Virex

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Re: Microwave Cannon Math
« Reply #8 on: December 20, 2011, 03:09:37 pm »

I don't think you can keep a laser focused on a single spot for long enough for that to work. You'd need to have an automatic tracking system and some very powerful lasers. Even then, most payloads are shock and thermally resistant, so you would need to set off the blast head
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Tellemurius

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Re: Microwave Cannon Math
« Reply #9 on: December 20, 2011, 03:12:56 pm »

flamoot

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Re: Microwave Cannon Math
« Reply #10 on: December 20, 2011, 03:14:06 pm »

http://powerlabs.org

Ask Sam Barros. He knows
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Re: Microwave Cannon Math
« Reply #11 on: December 20, 2011, 04:01:38 pm »

I believe we have found a chief non-conventional... defenses... researcher
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Re: Microwave Cannon Math
« Reply #12 on: December 20, 2011, 04:04:08 pm »

Pay attention, we're going to need to know this now that NDAA has passed.
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Re: Microwave Cannon Math
« Reply #13 on: December 20, 2011, 04:04:28 pm »

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