"First, Ivconic should build the detectror circuit and tune it and test it to insure that
it works for collecting ions. Then send only the circuit boards to me along with trim pots
connected (this is to make inexpensive shipping cost)."
Huh! A whole cost to build that ions detector would be $20-$30, for you J PLayer.Since I am
living in Europe, in Serbia, what do you mean, how much it is gonna take for me to send to
you assmebled pcb!? Incuding shipment and anoyance through post and other stuff. Serbia is not
even a member of european community, so there is no way to send enything by usual channels
like it is a case in the rest of Europe.Costs would overcome $100 and more!Forget about that.
If you want to check that device than you have to build it yourself.
I made it for some time. It is working and it is detecting ions for real.
I checked it as follows:
I made a long time ago a Tesla coil, which is producing a high voltage, over the 5000 volts.
I added to it a typical tv cascade to obtain higher voltage, over 17 000 Volts. Output is
connected to a metal ball. In it's nearby (aprox. 15cm) is a ground plate.So when is switched on
it produce a giant sparks, and you can see a voltage crossing through the air....etc.
I guess all of you already know about Tesla's coils, and how they are working.
It is producing a clouds of ions in no time! In a minute or two my lab is full of them and i can
even feel and smell ionizied air. It has pleasant taste an it is good for respiration for a
10-20 minutes per day. It is a sort of ozone. Now, what you have to do is to switch on the
detector and you gonna detect ions easy. Because the concentration in a closed space is on
a high level, i repeated a test outdoor of my house. The detection is still good,loud and
clear.I was rambled backwards for about 20 metres and the detection was still unchanged.
On 21. metre the detection decay a bit by bit as i rambled more.After aprox. 25 metres there
was no detection any more. So it seems that it's shows all the results by this test.
About burried metals i don't know really. I do have a sort of test field with coins,metal
pieces and one big,old transmission from some used car, burried in about 2 metres deep.
I tried to detect it with no results at all! It was some clicking in the speaker but as any
where else on the field, nothing like a real detection!
That's why i posted some ideas about improving late stages on the device.
I think that input stage is good enough.I think that problem is with a further processing.
One more thing, during the test i switched off a 555 part of the device, and guess what?
The detection was attenuated appreciably, and some other weak noises occured.
So the 555(polarisation of dish) is acting very important role in the project.
Right now that device is reassembled on the desk and wait for improvements. I was thinking
to do that by my own, but have no idea.So i decide to stop for a while and wait for some
better solutions. Since i am working parallel on several projects like resistivity meter,
copy of some IB Minelab, one MD3007 and one PI, i am very abstracted to think only on
this project. That's why i posted schematic here and wait for your opinions. And it seems
very productive, all of your posts shows some good ideas here.
I am very restless to see somebody's else expirience with this ionic detector.
......
FrancoItaly
"I noticed in Ivconic's circuit that there is not capacitor between pin 2/6 and ground
of LM555' stage, this capacitor would determine the output frefrequency.."
JESUS !!!! It is true ! I am sorry i missed that! Here is a reclamation....
regards!