Infrared lrl

[Sreekumar]

Hai friends please help me, only gold and silver hunting infrared lrl circuits please regards

[Sreekumar]

Hai friends

[fasdoc]

Uvlrl

I've seen that on YouTube, I didn't make it, I don't know if works. Try and tell us your opinion.

https://ibb.co/bPRCVmw

[Jeg]

Hi
I have built Morgan's IR circuit with the beeper/led at the output.
I have built Morgan's IR circuit with a needle indicator at the output.
I have built a modulated input IR receiver by the use of a transmitter IR led and a very selective high Q LC at the front end.
I have built a differential receiver which eliminates all the problems of the previous devices when you change angle of scanning.


Net conclusion: When it comes to metal detection, it is one of the worst methods i have ever experimented with. I wish i could take back my time money and efforts.

[Geo]

Hi Jeg.
Not so bad.... and not so simple
U may have excelent results after special conditions.
Who are the conditions.... here is the secret.

Regards

[Jeg]

Hi Geo
These special conditions are killing me brother
But i still have the machines perhaps i ll give some more time on testing

[kaveh]

Hi
I have built Morgan's IR circuit with the beeper/led at the output.
I have built Morgan's IR circuit with a needle indicator at the output.
I have built a modulated input IR receiver by the use of a transmitter IR led and a very selective high Q LC at the front end.
I have built a differential receiver which eliminates all the problems of the previous devices when you change angle of scanning.


Net conclusion: When it comes to metal detection, it is one of the worst methods i have ever experimented with. I wish i could take back my time money and efforts.

This method works and with this method I have taken out some metals from underground. Within fifteen minutes, I searched 3-4 hectares and found the area of four metals and brought them out with a metal detector. But it does not work as the only method for tracking.
This method is completely scientific and you can draw conclusions from this method. But the operator experiences many errors in exploration and must recognize them in order to reach the real goal.

[Jeg]

This method works and with this method I have taken out some metals from underground. Within fifteen minutes, I searched 3-4 hectares and found the area of four metals and brought them out with a metal detector. But it does not work as the only method for tracking.
This method is completely scientific and you can draw conclusions from this method. But the operator experiences many errors in exploration and must recognize them in order to reach the real goal.

Thank you brother i wonder about if i have used the right IR Rx receiver leds. I used the classic IR commercial leds. Do you think that they need replacement with more dedicated ones??

[kostas87]

This method works and with this method I have taken out some metals from underground. Within fifteen minutes, I searched 3-4 hectares and found the area of four metals and brought them out with a metal detector. But it does not work as the only method for tracking.
This method is completely scientific and you can draw conclusions from this method. But the operator experiences many errors in exploration and must recognize them in order to reach the real goal.

Hello Karen! What metal you have whit the infrared method?

[kaveh]

Thank you brother i wonder about if i have used the right IR Rx receiver leds. I used the classic IR commercial leds. Do you think that they need replacement with more dedicated ones??

It should work. They are not very different from the tests I did. For very weak lights, the phototransistor works better.
Turn your back to the sun. It works better on smooth and flat land. You will have sense of error in the places where it is low and high. It should also be in places with vegetation.
Not applicable for long distances. And...

[kaveh]

Hello Karen! What metal you have whit the infrared method?

I personally iron and bronze. I have friends who have found gold in other metals as well.

[Jeg]

It should work. They are not very different from the tests I did. For very weak lights, the phototransistor works better.
Turn your back to the sun. It works better on smooth and flat land. You will have sense of error in the places where it is low and high. It should also be in places with vegetation.
Not applicable for long distances. And...

Thank you for sharing kaveh! Sun at the back. Copied


About vegetation, i remember that when threshold was at low levels it was giving me signals from the green fresh leaves.

[Yusufyaba]

I personally iron and bronze. I have friends who have found gold in other metals as well.

hello kaveh

I was using bpw 41 n before and it did not give the exact location. But it received the full signal from 10 meters. Which RX do you use?

[fasdoc]

hello kaveh

I was using bpw 41 n before and it did not give the exact location. But it received the full signal from 10 meters. Which RX do you use?

What circuit you use? Can you post it?

[Yusufyaba]

hello kaveh

I was using bpw 41 n before and it did not give the exact location. But it received the full signal from 10 meters. Which RX do you use?

https://www.longrangelocators.com/forums/attachment.php?attachmentid=21081&stc=1&d=1711045730