Half Sine Wave Hybrid Detector Technology

[MXT SNIPER]

https://patents.google.com/patent/US8629677

I am wondering if this new hybrid technology will be a must have in the world of Nugget detecting? I currently use a gpx4500 for nugget hunting, will this new technology make for more sensitive and deeper nugget detection? Is this hybrid technology similar to the gpz7000 minelab? Is it better?

[kt315]

in general not new. the half sine is used in russian 'IMB' detector. thats military, deeper for mines seeking.

[Carl-NC]

Half-sine goes back to the 1960's in some Barringer patents, used for airborne detectors. US8629677 and US9285496 describe truncated half-sine which adds a PI response to half-sine. The design I had working at White's was impressive. It had a deep PI response with a large capacity for discrimination, plus ground tracking. And, when ground tracking was turned on, it went deeper. Nothing at all like the GPZ.

[Teleno]

Half-sine goes back to the 1960's in some Barringer patents, used for airborne detectors. US8629677 and US9285496 describe truncated half-sine which adds a PI response to half-sine. The design I had working at White's was impressive. It had a deep PI response with a large capacity for discrimination, plus ground tracking. And, when ground tracking was turned on, it went deeper. Nothing at all like the GPZ.

Has your patent materialized into a commercial product?

In any case, I guess the phase shift of the target is also present in a traditional PI during the ramp-up of the Tx signal ready to be measured during on-time. After all the linear ramp is a sum of frequencies that can possibly be band-pass filtered and analyzed separatey.

[waltr]

In any case, I guess the phase shift of the target is also present in a traditional PI during the ramp-up of the Tx signal ready to be measured during on-time. After all the linear ramp is a sum of frequencies that can possibly be band-pass filtered and analyzed separatey.

Yes, Tinker pointed this out is his threads and I have Scope captures of this with Dual coil on a Hammer Head PI. See my thread "My take on the HH2" in the HH II sub-forum.
I have plans to look at the phase during TX pulsing but haven't had enough time to work on the PIC code yet.

[pustareka]

Best ideja NIKOLA TESLA

Wotch

[Carl-NC]

Has your patent materialized into a commercial product?

No, when the patent expires in 15 years I'll get back on it.

[eclipse]

Carl, you can probably get back to it right now and push out new ideas in real life in 15 years.

[Teleno]

No, when the patent expires in 15 years I'll get back on it.

I though patents were meant to be protect a product, not to merely hamper others from exploiting the idea.

[Carl-NC]

A patent protects intellectual property, it is exactly to prevent others from exploiting the idea.

[WM6]

You can treat this patent as prior art, upgrade it somewhat and file new improved patent solution (look at ML patent praxis).

[Teleno]

A patent protects intellectual property, it is exactly to prevent others from exploiting the idea.

Not exacty, patent entitlements have been created to foster technical progress. The privilege is given in exchange for disclosure. Not exploiting a patent and not allowing others leads to stagnation rather than progress.

[Carl-NC]

This stuff has been discussed in the past...

You can treat this patent as prior art, upgrade it somewhat and file new improved patent solution (look at ML patent praxis).

Yes, but if the improvement still infringes the original patent, you can't simply ignore the infringement. This kind of thinking will get you sued.

Not exacty, patent entitlements have been created to foster technical progress. The privilege is given in exchange for disclosure. Not exploiting a patent and not allowing others leads to stagnation rather than progress.

True, it is 20 years of entitlement in exchange for disclosure. But the patentee does not have to exploit the patent and can still prevent others from doing so. It is their choice.

[MXT SNIPER]

Thanks for all your responses on the half sine wave hybrid technology, I am hoping this hybrid detector, if it ever reaches the market, will not have such complicated coils as say a gpz, too cost prohibitive, etc. Sounds like it may be a viable machine for nugget detecting if something like this hits the market. Most the gold we go after these days in the gold fields is 1/2 gram to 2 gram nuggets at extreme depths, missed by all the older technology machines. Most the easy large gold has already been found since the pi detectors were very good way back on large nuggets, sd 2000 etc. Always looking for new tech, loopholes you might say where undiscovered nuggets can be found. The new flatwire coil have helped a lot in this regard, I am getting an extra 2 inches more on small gold at depth with these new tech coils.

[kt315]

for example mentioned here http://www.geotech1.com/forums/showt...N-DEPTH/page16