Best than your Raven!

[Esteban]

Radiation source can be detected via compound zinc sulphide.

Regarding the article wich describes a neon lamp for to detect high frequency, is possible to found modifications. Here two files I had since some years:

[Esteban]

This is the proof you never learn nothing: Of course, if I transmitt a tone via IR, for example, in few hundreds hertz, so this is modulation, sorry your engineering "knowledge" is very far to me! Who are your "professor" or you never learn the lessons?


"....This IR light must be modulated in low frequency....."
HA,HA,HA,HA,HA,HA,HA,HA,HA,HA,HA !!!!!!!!!!!!!!!!!!!!!!!!!!!
Shame on you Esteban! You do not have even elementar knowledge at all!!!
GOOD BYE!!!!

HA,HA,HA..!!!!!

[Seden]

Thank you Esteban!

Esteban,

I really appreciate you posting those two articles. I had seen the one about the scalar detector but I guess I threw it out. But that's where I got the idea for the ring magnet and I meant to say that I was going to put the magnet around the neon detector,not the photodetector. But I had never seen the article on the phototransistor with the ZnS painted on it-I didn't think my idea was original darn it. But good information that will be put to use.

If you come to the US I'd want to meet you. I live in the Los Angeles area by the way.

Also ignore the people that are giving you a hard time,this is supposed to be an Adult Forum for sharing ideas (read free thought and speech).:confused:

Randy

[robert]

Ha,ha,ha!!!!


Yes,of course!!! Like hell!!!

Let's say 455kHz to 460kHz!? So we can use it as remote control...same way?!
Ha,ha,ha,ha!!!!

Be serious! Cant you read what this thread is about??? What the hell you are talking about?

You mixed up everything!?

I wish you very luck!

[Esteban]

OK, Randy, thanks very much.

Found a paper for detection at THz region. See the tip in contact with the positive electrode of photoconductive THz emitter based on GaAs, this is base of simple IR leds. Coincidence?

[Seden]

You came through again esteban!Attn:Robert

Esteban, That article is just what I needed,thank you for helping me. Have you had a chance to get a copy of Dr. Doblers book? The original's are in Deutsch,but you can get an english translated somewhat condensed version from "Integrity Research Institute" for $10 which is 45 pages and worth every penny. It also contains additional information at the beginning of the book. The url is http://www.users.erols.com/eri/page6.html .

Robert, where did you come up with this 455KHZ stuff. Who's working with old radio IF's? Me,heck I'm shooting for 249GHZ,care to join in? It's kinda a put up or shut up propositon if you catch my drift . Now how about contributing practical design ideas so we can make some progress here. That's why Carl has gone to the trouble to put up this forum as an medium of exchange of ideas-cool no?
I seriously would like to know how you would go about this goal that Esteban and myself are trying to achieve. I am NOT designing a MFD or LRL but a simple hand held detector exactly like the Falcon MD-10 that is an IB 300KHZ detector that unfortunately works for hardrock mines-not Alluvial deposits. Kinda a poor mans XRF if you would that is tuned just for gold.
The Falcon has a handheld probe that has a distance of about 1-3" but cannot handle the black sand in the Alluvial Sand so enter the Millimeter detector that you can walk along and take readings from the soil directly in front of you. Ditto for the walls,just hold it close and walk along seeing if you can detect gold in the matrix. You up for the task?

Randy

[goldfvr]

how far are talking

Randy, how far away are you saying this proposed mm device could detect lode gold ? what could be done to achieve a distance considered "remote" or a couple of hundred feet...

[ivconic]

Think twice!

:confused:
Think twice!
Robert made good points there.
Almost every experiment with IR failed so far....Wasted time!
regards

[robert]

...


"Robert, where did you come up with this 455KHZ stuff."
Seden, you should read every post here carefully;
Esteban: "...in few hundreds hertz, so this is modulation, ..."

"..Who's working with old radio IF's? ..."
Also remote control ceramic filters...Besides,did you payed any attention on
Estebans posted pictures so far?
What can we see on picture above???
"Me,heck I'm shooting for 249GHZ,care to join in?"
Yes! Why not!? But i do not have a clue how to use that freq. in metal detecting???
Not to mention Long Range...ts,ts,ts...
"Now how about contributing practical design ideas so we can make some progress here."
Again, i am very sorry, i do not have a clue....but i do know what is possible and what
is NOT!
"That's why Carl has gone to the trouble to put up this forum as an medium of exchange
of ideas-cool no?"
Carl became already my IDOL! Dont you worry about that!

"I seriously would like to know how you would go about this goal that Esteban and myself
are trying to achieve."

Huh! I already argued with Esteban many times,but this does not mean that i do not respect
him and his efforts. No,not at all! I do respect him a lot.
Our posts are just usuall rethorics, when no good idea is present...Nothing to worry about.
".....Falcon MD-10 that is an IB 300KHZ ...."
Although it looks to have very poor performances, it would be interesting if you post some
picture of it here.Also any technical about it...so we can see what is all about.Better if
you open another thread about it....

"...but cannot handle the black sand..."
Of course! Speaking of high frequencies....ts,ts,ts....
"...You up for the task? "
Tell me what to do, i'll be glad to contribute here....
I do know that high frequencies are not suitable at all for this subject. Does not penetrate
in any kind of material at all. Not possible to build detector using those...
Reflect/deflect from any material....What to say? I had pretty hard time when worked on
repeaters once....History....i do not wanna bug here with those...
I am just sorry to see Esteban (with enormous will) how to torture himself with nonsences,
while he can do much better...much,much better...
If want to make long range (deep penetration) better to stick to magnetometers or some
georadar...as much as man can gain so far...
Besides, Long Range... is very unfortunate mixed up term....Whenever i hear that,reminds me
on Bogus science&devices....
Carl was very smart when named this part of forum like that...think twice! Bravo Carl!
....
I am here.I have good will to contribute. Tell me how?
But every time i see nonsences...i will react in my already known manner...a kind of
contribution too...

Esteban,friend...no hard feelings!
Best regards!

[Esteban]

Almost every experiment with IR failed so far....Wasted time!

Yes, if you pretend show temperature in display. Is this the only way you know?

Who tell this? What is every? Do you have negative inputs about it? Do you investigate in all source today we have near our hands? Or only you suposse it?

[Seden]

IR and Millimeter Technology moves on

Esteban,

I was thinking the same thing about people on this forum who haven't yet come up with a better idea to try but can only make negative comments. I think this fellow has been found out.

I was looking up various searches for millimeter detection (bolometers,radiometers,etc.) and of course came up with alot of demining sites,one of which showed how easily it is to detect them with an Infrared Camera at night.

I found a really excellant paper put out by the U.S. FCC entitled "Millimeter wave Propogation:Spectrum Management Implications",Bulletin Number 70.
This document is packed with so much easy to understand information with alot of charts showing attenuation vs frequency and conditions. Turns out for 250GHZ for dry conditions the attenuation is about .48db per km and about 5db with humidity in the air. Far as through soil for passive detection it looks like about 3 inches is it. That is identical to the Falcon MD-10 that can be EASILY found using google,so I'm happy with these parameters if I can cobble together a working system however crude it may be compared to the big bucks university with the Phd's designing and building them.

Robert old chap,you asked me what I wanted you to do and all's I would ask-no beg- is RESEARCH millimeter technology so you can get an idea of the limitations and capabilities. In the above post I gave a specific title of a cheap booklet by Dr. Paul Dobler from the Integrity Research website. Also do yourself a big favor and type in StarTiger into google and study up. I think your testicles will drop to the ground when you see what the British Aerospace industry has accomplished complete with photographs.

Good hunting!

Randy

[robert]

Again Yiak,Yiak...but weak,very weak..


Yes Esteban,i did a lot of research on that field.It will take pages for me to explain to you and Seden about all problems occured in that matter...
It is much easier for me to simply tell you to give up and do not waste time and space here....no benefits from those at all in metal detecting.
Cant you distinguish what this forum is about...once for all???

This is metal detecting,prospectors forum man!!! Everything elese is not important and not relevant here!

You rather stick to blah,blah and a lot of philosophy than to "ground" yourself and try to do something real for instance...

You do not look smarter here cose talking about "high" scientific fails...
Everybody can use google and search for simillar texts and later post here like its own presumptions....not smart at all!

Life is to short for me to bug myself with nonsences you ve been talking here!

Come on with real idea/project,than we can talk about....

You are loosing yourself in "clouds"...come on the earth and be real!

Like plain amateur, nothing you can do interesting enough to "shake" the world of md...

Be real for once.

Seden you are on the same track as Esteban. I wish to both of you much,much luck!
regards

[Esteban]

The only who wasted time here are you, because you loose the time in the reading. And the space is not yours! Deppend of the Administrator. If he is against all this, well, we dissapear!

Please, no more Byzantine discussions. Only focused in the posibilities, no in the negativities.

Randy, thanks for the info. I tell you IR is a great field! I read in physics books that all no natural buried bodies (the creates for the man) emits IR, the metals in more high quantity. Remember: gold loves IR. I have this paper: Microstrip antenna-coupled infrared detector.

[Seden]

Gold vs Silver IR Spectrum

Esteban,

I was looking on http://64.143.63.33/pdf/coatings.pdf
and on pg. 5 they show the spectrum Graphs for Gold and Silver and radically different. Gold is at 95% at 900nm and 98% at 10um whilst silver is 95% flatline from 600um to 2.0mm. You can buy a inexpensive Far Infrared bolometer that covers 8-12um which is around what 80 to 90 degrees farinheit? I have one at home that I bought from J.P. Marlin mail order (type in google) for $3.50 I believe. It's been several years and there's also a company that has a kit that enhances that bolometer. If I can find it at home I'll post it. It's fun device to play with and so easy to use with a minimum of parts.
I know you probably know this but the trick is to get the biggest temperature differential between the ground/air and the gold in the ground like fall or spring at early nightfall.

I received a notice to pick up the Oscilloscope/Spectrum analyzer that I bought off ebay for a little over $200 from Hong Kong (on a very slow boat as I paid for it Oct.9th-thought I got stiffed and opened a case with ebay and paypal). So now I'll shift my priority back to a electronic version of a gold detector that I had mentioned earlier using the ULF range where you can see the differance in minerals due to their grain size (Natural Field Spectral Induced Polarization-google once again on this).
Also I just ordered a Radiometer for a whooping $10 and so will play with exciting it with Millimeter radio waves as Dr. Dobler did using a Printed Circuit yagi and trying a parabolic dish that you can buy from Edmund Scientific for a song (American slang for low cost-dates back to the depression era here).


Ok,Robert what do you think of my shifting from MM Waves all the way down to ULF-TRUE SCIENCE or buh sheet (American Negro slang for a lie)?
Or a you just the preverbial Jokester here on the Forum? By the way old bean, I'm interested in some of your metal detector designs,care to share them eh? No talk now-just show me the schematic.

Randy

[robert]

He,ha,ha!!!


Sorry to say;but there are at least dozen of my projects,right here on this forum.... Many people used alredy....Of course i used another nick to post some posts here and other forums on the internet...

This nick i am using just to fight against human stupidity arround...
Esteban i prefer your stupidity....

ha,ha,ha...

No one is trying to limit your nonsences at all. Come on, be my guest and post more funny nonsences Esteban....everybody laughs on you already...

Ha,ha,ha...

"Gold love IR...." ???? Ha,ha,ha,ha,ha.......another joke????

please continue...!