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#51
01-03-2007, 10:58 PM
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Hi Okantex
I search for Leningrad 7 in the web. There are models Leningrad 1 to Leningrad 10. Leningrad 7 uses selenium as light sensor, maybe this is not very precisse in order to measure quantity of light near IR radiation, but the most important in this case is the sensibility. But if you wish detect IR radiation from the soil, you can solve the problem with IR receiver module for remote control TV. This is into a small metalic box. I experiment with it and promises very much. You must insert into a obscure tube, no black, because this bright. Better is darken internal paint into the tube. 
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#52
01-04-2007, 05:19 AM
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Esteban-pyroelectric detector
Esteban,
I finally found the supplier of an inexpensive pyroelectric sensor and fresnal lens. Goto: http://www.glolab.com and check out the specs on the PIR325 and FL65. Each item is $4.ooUSD plus shipping and there is a really nice applications manual for the PIR that you can print out. Could you email me your email address? r.seden@sbcglobal.net Randy
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#53
01-04-2007, 02:08 PM
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Hi Randy
I could not open the link you give as " AM Seden  vbmenu_register("postmenu_47838", true); Junior Member Join Date: Oct 2006 Posts: 22  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. do you have it in your archive. I would like to read it all.can you help me. I can sent my mail through PM.
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#56
11-24-2007, 10:43 PM
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Quote:
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#57
11-24-2007, 10:53 PM
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Hello TH´s , I´m new here,and try to find how this work.
Quote:
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#60
11-25-2007, 12:40 AM
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Testing DC2008 Mineoro
Before some people in Geotech Forum think or decide to buy any kind of LRL device,remember there is a place on this planet where there is GOLD buried some years ago,NOT TOUCHED FOR TWO DECADES!!!
I can´t say Mneoro not work,i only want to tell to Forum my experience with this device,and the results of more than a year of searching with this LRL... Finaly i get my conclusions about DC2008,and decide to tell the performance of this expensive LRL.
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#62
11-25-2007, 01:05 AM
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The new Tortuga (Garopaba)
When i was there,i know that people from Greece,Iran,and other countries go there to buy a Mineoro...Some of them are not rich and save money to buy a tool,not a toy.
Mr.Damasio is a very busy and inteligent man. I saw the factory,where they make many devices not only for TH.All this Mineoro people looks very serious and work hard.I test the mineoro in a special place near the factory. But anyway there is something strange...In Tortuga,Garopaba field test for Mineoro...
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#63
11-25-2007, 02:15 AM
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Garopaba field test
Tests in Garopaba was made near the Mineoro factory. I get clear signals on yelow PLASTIC marks were is suposed to have gold buried long time ago. If i touch several times this plastic marks i get more distance with mineoro ...
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#64
11-25-2007, 02:21 AM
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Garopaba field test
The field test its near Mineoro factory.
I get clear signals 1-2 m distance,were is suposed to have gold buried long time ago. Over this buried objects they put marks,yelow plastic covers. I get impressed with Mineoro LRL in factory field test,but...
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#65
11-25-2007, 02:33 AM
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Testing LRL in new Tortuga
Yes,but if i touch several times this plastic covers i get more distance with Mineoro,because of the extra charge on this plastic covers over objects...
Mr.Damasio dont like this disturbs i make on field test,sorry for this litlle experience. If i charge a plastic item with static,i can detect this small plastic 2 meters distance. But i´m searching for gold not plastic...  Mineoro its very sensitive to static electrycity,what about real gold buried long time ago? I can answer this question.
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#66
11-25-2007, 02:53 AM
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Testing Mineoro DC2008 -GOLD medal buried 20 years ago!
The Mineoro device DC2008 was tested in this field many times during the year(where there is real gold buried long time ago,to test normal detectors),in most of weather conditions,unfortunly NO SIGNAL.
Other mineoro two box 08 MI,no signal,no metter movment over gold medal,but clear metter movment over 1kg coins buried at 60cm,with my withes TM808 two box i cant get this target,because ground mineralization. Now i talk about DC2008 performance on beach...
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#67
11-25-2007, 03:04 AM
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Testing DC2008 on beach
On the beach,maybe because salt water near or diferent ground condition i confirme this device become nervous in the presence of conductive metals ,not only gold,he starts beeping everywere ,become nervous machine,but unfortunly during this year i never get a clear signal like in Garopaba field test,and to find this targets on the beach i allways need nomal METAL DETECTOR...
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#68
11-25-2007, 03:12 AM
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My conclusion
I´m sorry if i disapoint some members,but its the true about my DC2008,a broken dream...It seams to work but not as i aspect
 In reality it detects GOLD with clear signal,large coin 20cm,jar full with silver coins 50cm,this is the on air test,small iron reject,big iron detect...Work like a weak metal detector on air tests...
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#69
11-25-2007, 02:38 PM
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#70
11-25-2007, 10:50 PM
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I was at Mineoro two years ago and also made my tests as you did. By that time the ionic fields were awfully low and weak. Even touching the covers I could only get a beep with my PDC from two inches away for THAT SPECIFIC target. From about 30 feet away I could get beeps as the ionic fields of all of those several buried objects summed. You were lucky to get beeps from 2 meters away for a test target. Those targets are real as the objects are there for more than 100 years as that place used to be a spot for 'vaquejada' an old rodeo like type party. What you trully missed was the opportunity to make them dig the object to give you as a gift as proof to yourself. I knew of an european who asked that and he took home a real old gold ring he detected.
__________________
"Should exist injustice and untruths towards working LRLs, I'll show up to debunker the big mouths"
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#71
11-25-2007, 10:55 PM
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But I don't want to buy the new ones. I love the old models with the red or blue circuit boxes. I always check the brazilian ebay to see if there's one for sale...
__________________
"Should exist injustice and untruths towards working LRLs, I'll show up to debunker the big mouths"
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#72
11-25-2007, 10:57 PM
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Thank you Morgan for your honest report on the Mineoro.
As you said, its "a broken dream". Quote:
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#73
11-25-2007, 11:01 PM
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 Another tall tale from Hans Christian Hung.
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#74
11-25-2007, 11:04 PM
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A friend of mine has a MP10 2 box and I witnessed him detecting a small gold ring which as about 60 cm deep just looking at the VU for small objects activity. Although the the MP10 is Mineoro's top of line 2box, the 08MI should work just as well for this.
__________________
"Should exist injustice and untruths towards working LRLs, I'll show up to debunker the big mouths"
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#75
11-25-2007, 11:08 PM
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 :lol :Sorry qhia, have much to do other than playing nonsenses here with you.
__________________
"Should exist injustice and untruths towards working LRLs, I'll show up to debunker the big mouths"
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