GPR - project

[Gem Searcher]

Pillar,

I would be interested in such a work. I would like to know what capabilities you would be aiming at. Several of us here have more than just a simple look in the ground goals. (check my previous posts)

Thanks

Hello

Hey all,

I have a BS in Applied Math and a Minor in Physics from UC Davis. I currently work as a software engineer. I am taking post-graduate Electrical Engineering classes while I work but I am thinking of going back to school to get my PhD in EE. I plan on building, from the ground up, a GPR system with all of the software as well. I would make all the hardware and software opensource with GPL license. Does this interest anyone?

GPR

Hello,

We are interested in GPR project. Did you developed PC-based GPR?

Hasan

Hi everybody,
too many people asked about GPR-schematic ,but it is too new field and there are only unusable schematics .
I begin a development of easy-to-make and PC-based GPR .It will be open project and everyone can assist with ideas, check up the assembly or develop the software.
My vision for GPR is : small output power, in 0,9-3GHz band, narrow beam antenas and use some bionics design.

[pike]

For some intresting tehnics look at DeTec sight,all military tehnics at one place whid good exp. and links.

does anyone have full project with software

pro work

For some intresting tehnics look at DeTec sight,all military tehnics at one place whid good exp. and links.

[Seeker]

Would it be possible to use a vapor deposit detector chip, something similar to a ccd chip, that would detect the natural emanation of energy from covalent bonds between similar atoms? Looking more towards the detection of energy emitted by such bonds in a crystalline structure such as diamond. Would one have to supply an excitation force to do this?

Hi,
What do you mean by "natural emanation of energy" ? CCD chip consist ~380000 photoelements. Nipkov's disc can reduce numbers of photoelements to only 1 , but it needs mechanical system.
Some crystalline structures has piezoeffect, nonlinear VA characteristic or something else.

[yeraltici]

Bunların alayı uyduruk şeyler, neyin görüntüsünü veriyorlar? Toprak altının sadece grafiği çıkartılabilir. sonuçta o işte bir analiz cihazı ile mümkün olabilir. Nasılmı. Gönderilen ses dalgalarının ve titreşimlerin yansıyarak geri dönen enerjisiyle çıkarılan sonuç, yer altı grafiğidir. Yer altı görüntü cihazı uyduruk bir arayış.

[Gem Searcher]

Seeker - Detection of covalent bonds

Would it be possible to use a vapor deposit detector chip, something similar to a ccd chip, that would detect the natural emanation of energy from covalent bonds between similar atoms? Looking more towards the detection of energy emitted by such bonds in a crystalline structure such as diamond. Would one have to supply an excitation force to do this?

GPR-project

For a GPR it coud be usefull 2,4 Ghz video transmiter,in puls transmiting,and for a reciver a simple shotky diode+shf fet low noise,for a signal mesurment (distance from a target) a modifed circuit of a laser distance meter.

[Morgan]

Not magnetometer

Funky aparatus in the picture is most likley a gradiometer.A diferential proton precesion magnetometer.The black cilinders on the ends are the coils,since it has a big span betwen them,plus the waterproof housing and the girl is wearing a bikiney its for shipwrec hunting.

Hello
This photo is from old book "Buried & Sunken Treasure"1974.
This girl was hunting for coins along the tide line...And coins are not in iron.
Unfortunly i can see nobody have shematic of this device.Its a powerful two box for coin hunting,i think...

Regards

gpr-project

Funky aparatus in the picture is most likley a gradiometer.A diferential proton precesion magnetometer.The black cilinders on the ends are the coils,since it has a big span betwen them,plus the waterproof housing and the girl is wearing a bikiney its for shipwrec hunting.

[Seeker]

This is not coin locator, one coin is too small to be find with this unit.

[Gem Searcher]

Interesting use of pvc. The ends are 2"x1" tees on about 3' of pipe leading to what looks to be threaded adapters on a 2" pipe mounted on top of a 3" pipe. The really funny part is that she is listening thru a stethoscope that seems to be coming out of the handle. Potential scam? Never have seen one like this. Could be a home made prototype.

[Morgan]

Two Box ?

For gpr best freqency range is from 100Mhz to aprox. 2,4ghz.Lower f has the depth,but a poor resolution.For 100Mhz range resolution is 1/4 to 1/2 of wave ,aprox. 0,8 to 1,5 meters.The 2,4Ghz range has the best resolution 6cm,at these ranges soil absortion is becoming to high for practiclal use.Bigest problem is the water content of the soil,ower 20-30% whil reduce signal to under 10%.For general purpose 1Ghz sems best.Mineral content is olmost the crucial,clay as wid MD.Military sistems are a good exampl for a begining.A nother good tehnic is a passive microwave radiometric reciver.

Hello

I would like to know if someone here as schematic of this coin locator.

Regards

GPR-project

For gpr best freqency range is from 100Mhz to aprox. 2,4ghz.Lower f has the depth,but a poor resolution.For 100Mhz range resolution is 1/4 to 1/2 of wave ,aprox. 0,8 to 1,5 meters.The 2,4Ghz range has the best resolution 6cm,at these ranges soil absortion is becoming to high for practiclal use.Bigest problem is the water content of the soil,ower 20-30% whil reduce signal to under 10%.For general purpose 1Ghz sems best.Mineral content is olmost the crucial,clay as wid MD.Military sistems are a good exampl for a begining.A nother good tehnic is a passive microwave radiometric reciver.