ultrasonic sound metal detection

[brain]

Is the information posted on this site correct? Can metal detection with ultrasonic sound? Can you help with this? link is below

http://en.shram.kiev.ua/goods/metal.shtml

[Pahom]

Originally Posted by brain

Is the information posted on this site correct? Can metal detection with ultrasonic sound? Can you help with this? link is below

http://en.shram.kiev.ua/goods/metal.shtml

No ..... It was a joke.

[Geo]

Originally Posted by brain

Is the information posted on this site correct? Can metal detection with ultrasonic sound? Can you help with this? link is below

http://en.shram.kiev.ua/goods/metal.shtml

I don't know about this schema but if you will look at forum will find a post from Esteban where says that "phainomenon" is detectable by ultrasonic technology...

[humhum]

Originally Posted by brain

Is the information posted on this site correct? Can metal detection with ultrasonic sound? Can you help with this? link is below

http://en.shram.kiev.ua/goods/metal.shtml

Dear Friend , here is this two liks , I not build this two Sch , but I beliewe that will works its with correct calibration , for this need Time .

https://www.longrangelocators.com/fo...&postcount=102
https://www.longrangelocators.com/fo...ght=ultrasonic

[Dubulumach]

Hi all !

Anyone have built this Magnitostriction LRL schematic - ultrasonic type?
99.99% it must work with correctly tunned filters.

Where to find electromechanical filters for every metal?
Need only 3: Platinum , Gold and Silver.


Magnitostriction Frqs:

5,722 Mhz Platinum Pt
==============================
5,621 MHz Aurum or Gold Au
difference 101 KHz
==============================
5,278 MHz ARgentum or silver Ag
difference 343 KHz
==============================
4,731 MHz Ferum or iron Fe
difference 547 KHz
==============================
3,872 MHz Cuprum or Copper Cu
difference 859 KHz
==============================
3,245 MHz Aluminum Al
difference 627 KHz
==============================

ps: Worth try Ultrasonic LRL !

[humhum]

Hi Dear Dubulumach , before years I Hear from one my friend that he make a real PD ,
working with ultrasonic , but Schematic was other (also this is public ) , not from this upper Sch .
Here important is correct calibration , You know that is so and How , because
You are proffesional .

[kostas87]

Mr. Esteban, many years ago, had mentioned the method of detection with such a device .. there is nothing certain but why not ..

[Geo]

At theory yes....
but remember that he never constructed a workable ultrasonic lrl....