Microwave modification to monomode ????????
http://www.mdpi.net/ecsoc-5/e0000/e0000.htm (http://www.mdpi.net/ecsoc-5/e0000/e0000.htm)
Does it mean that just one magnetron is used ?
And multimode is using two magnetrons ?
Umm, how interesting !!
No, it has to do with the microwave radiation being focused in a narrow beam aimed directly at the reaction container (monomode), or a dispersed radiation throughout the inner space of the oven (multimode, normal mw-oven). From the paper above:
Thats (as far as I know), not correct. Monomode says that thy energy delivered by thy magnetron is steady and homogenous, yes, but thy problem with a household microwave oven is that it delivers pulsed energy because they work by charging a capacitor over a transformer and a diode by doubling the voltage. This means that ya have 50 or 60 Hertz pulsed energy output. Thy searched (very simple as I remember) modification changes thy input to a steady one, so also a steady output is resulted. Thy delivery of thy energy without "standing waves" (with energy concentrations on single spots)is another problem but easy to solve if ya take no waveguide at all and an irregular shaped cavity.
Monomode in thy sense of "not pulsed" would be more on thy point I believe.
If I got it wrong, please correct me.
leeching knowledge
ORGY
"I hope I'm becoming more eccentric. More room, you know.
More room in the brain."
Here is the artical about voltage multipliers. (pages 1&2)
http://www.geocities.com/c6h5uk/vm1.jpg (http://www.geocities.com/c6h5uk/vm1.jpg)
http://www.geocities.com/c6h5uk/vm2.jpg (http://www.geocities.com/c6h5uk/vm2.jpg)
(if the links are down due to traffic please PM me)
This is the type of circuit you will need to rectify and smooth the high voltage AC to DC
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000280091-file_wzeq.jpg)
Both the diode and the capacitor need to be high voltage types. The values of both components need to calculated according to the current drawn and the voltage.
Umm, how interesting !!
You are right.
I noway advised anybody to do modifications on a microwave oven. Thy microwaves can easily blind ya. Thy high voltage can jump at you over an astongishing distance and will kill ya. If ya not dead ya will suffer severe nerve damage. Small gaps in thy shielding work as an antenna multiplying and directing thy radiation.
for information on microwave and waveguide technology go:
http://www.tpub.com/neets/book11/ (http://www.tpub.com/neets/book11/)
(if ya want to make shure a button is pushed, put a "DON`T PUSH" sign on it) >:(
I lost a link, not my mind! :-[
ORGY
"I hope I'm becoming more eccentric. More room, you know.
More room in the brain."
the solution is:
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000280091-file_ilum.gif)
this is a voltage doubler circuit witch does not peak only every second halfwave.
But meanwhile I realized that the main problem of using household microwaves is the fact that they have much to much power (800W). This and the true "nonintuitive" behavier of MW´s makes it hard to use them for something else but drying of drying agents.
solution:
Post 281405 (https://www.thevespiary.org/talk/index.php?topic=5412.msg28140500#msg28140500)
(Elementary: "Re: Microwave modification to monomode", Chemicals & Equipment)
rewiring the microwave as shown by elementary gives you monomode and power is cut by half. So your 800W overkill gets a smooth ~450W monomode.
Regulation of the output energy can be easily achieved by placing more or less water as ballast in the cave.
You should know what you are doing if you do this.
But it is far from rocket science.
ORGY
~ Love is the law, love under will. ~