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Fisher Impulse AQ Discrimination Explanation


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17 minutes ago, Steve Herschbach said:

Further, the ground balance is being employed here first and foremost as a discrimination system instead of an actual ground balance control. That is why there will have to be a different detector for gold prospecting... the inability of this model to finely tune for small gold in mineralized ground. That also means the discrimination aspects, if any, of the prospecting version will likely be quite limited.

Also, and I may have misinterpreted this, but Alexandre implied here that future specialized Impulse variants would likely use digital vice analog processing or at least different "technology" which might address the above limitations associated with the AQ version.

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Yes it's true.

Nothing is impossible at this level, it is just a compromise between the time to spend and the profitability of a detector of this type.

It already works and we know how to do it, but as in any development you have to produce it and do a market study

1 minute ago, Chase Goldman said:

Aussi, et j'ai peut-être mal interprété cela, mais Alexandre a laissé entendre que les futures variantes spécialisées d'Impulse utiliseraient probablement un traitement analogique numérique qui pourrait résoudre les limitations ci-dessus associées à la version AQ.

 

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13 minutes ago, Chase Goldman said:

Also, and I may have misinterpreted this, but Alexandre implied here that future specialized Impulse variants would likely use digital vice analog processing or at least different "technology" which might address the above limitations associated with the AQ version.

The leap to digital is critical to the future of this technology. It really is more about signal processing than anything and there is almost no limit to the signal processing you can do once you go digital and put a small computer under the hood. Part of my hope for the AQ is that it does succeed to the point of convincing the bean counters the money is well invested. The sky is the limit, but only if there are profits to pay for it. So really everyone should buy one even if they never use it just to support future research and development! :smile:

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With my tdi sl if I wanted to get gold on the beach I had to take out the coins of 1, 2 and 5 euro cents.  I would like to know if the fisher could discriminate?

I ask because the video I think is recorded in France

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Steve, I will leave it to Alexandre or LE.JAG to post something authoritative based on insight into the design (Alexandre) or long experience with a whole series of successive Manta/AQ prototypes (LE.JAG). But meanwhile - I think you have pretty much nailed it. My brief acquaintance with the AQ led me to test it on “tiny gold” - pretty much nothing. I asked Alexandre about that and said that it was “a feature - not a bug” (not in those words however) - that finding tiny bits of foil everywhere was too high a price to pay for an occasional tiny bit of gold.

It isn’t a general purpose tool - the design has a very sharp focus on one job - valuable gold jewelry at salt beaches.

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4 hours ago, Steve Herschbach said:

Hopefully LE JAG can give you a precise answer to that question.

I remind you that the IMPULSE AQ is not a coin shooter !

I just did a quick test in multi tone.

The size of the nails is proportional to the coins.

EUROS COINS.jpg

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“Look ‘Ma - no holes!!!”

Seriously, this “bending” of the time domain curve is new and seriously useful for beach hunting for gold!

Also - note very carefully - Alexandre’s illustration above is not theoretical - he has verified the data he presents with the actual targets he has illustrated in the picture. 

 

 

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