Ivconic Magnetometer/Gradiometer

[ivconic]

We worked with a Chinese colleague for a couple of months on improving the FGM-3 sensor and now it is a completely new and much better quality sensor. A new version of the sensor with many qualitative improvements is also being prepared. But the price of that sensor will be higher.

[ivconic]

We are slowly completing the offer!
Now here is the sensor.
This is the basic sensor model, an improved version of the original FGM-3 sensor.
The price is for 2 sensors in a set.

https://vi.aliexpress.com/item/10050...yAdapt=glo2vnm

[ivconic]

All products by now:

https://www.aliexpress.com/store/110...498fA8aUA8aUGn

[ivconic]

I think the Chinese and I discovered what the problem is with shopping in some countries. It was a ridiculously small amount to collect part of the postage.
That's why, from today, shipping and postage are free, that is, on the seller's account.
This will have a very small, insignificant effect on the price of the item. But it will solve the problem of buying in many states.

[ivconic]

We are working on some changes and additions to the ad.
In a few days, all ads will be active again.
The language barrier is a big problem and I don't fully understand my Chinese friend, but I understood that there are some minor problems when filling out the ad and that in a few days everything will be fine.
He is currently working on some certificates and branding.
That's why he has to re-create some ads.
At the same time, we are preparing several more interesting offers on Aliexpress, soon.

[pigeon]

Working prototype:

[ATTACH]44649[/ATTACH]

HI MR IVCONIC

WHAT TYPE OF TUBE IS IT USED TO PUT FG3 SENSOR IN IT

THANK YOU SO MUCH

[ivconic]

Mostly plastic. I try to find strong plastic tubes that don't bend.
On a couple of occasions I have experimented with non-magnetic steel tubes (they are hard to find, I came across a few pieces by accident) and on a couple of occasions with pure copper tubes.
A tube of pure copper (I emphasize this "pure" because often various alloys are sold as "copper") has proven to be the best for this purpose, except for the problem of the weight of such a tube.
Pure copper acts as a "filter" and the sensors work more uniformly and quietly. I discovered this by accident, experimenting.
In the pictures below you can see all 3 cases; non-magnetic steel, plastic and copper. (click to enlarge)

[pigeon]

hello brother Ivconic

thank you so much good man

[Alexismex]

Very rigib carbon fiber tube! https://www.amazon.com/Carbon-Fiber-...de=11260292011