Shoe-Detector!

[Davor]

:duh: another hint could work better

[Funfinder]

*pling* I have THE idea:

The easiest way is:

A pair of shoes with a somehow thicker sole, around 2inch or 5cm.

And now guess what we have to do?

As always - stupid simple but you need to get the idea....


Here a hint - it has to do with "sex"

[Davor]

I thought of something more DIY and fit all. There are some ideas buzzing around my head, but nothing solid yet.

[Funfinder]

Fitting shoes exists already, but instead of the
GPS we have to fill both holes with a small
battery, circuit & coil for the MD system.

http://www.aetrex.com/aetrex-gps/

[Davor]

Surf pi long board - one per leg/foot.

Pressure switch in each shoe - the grounded foot is ON

Maybe the other way around? - the one moving in the air is ON?
Gee! The grounded one can emit while the one in the air searches. Or maybe not. Each foot passes the same path anyway. Only the loops must be orthogonal, which is not that difficult to achieve, and it is completely interactive.

I'm getting warmed up for this

[Vortxrex]

You're too late!
These have been available for some time, and have already been discussed here on Geotech in the past. ->

Is that a USB connector for the sandle/coil... That will last about 5 minutes

[golfnut]

Surf pi long board - one per leg/foot.

Pressure switch in each shoe - the grounded foot is ON

[Davor]

This is something I was looking for. OK, maybe just a tad more serious.

Too bad this idea didn't stick.

[Funfinder]

Here some clips about the sandals:

http://www.youtube.com/watch?v=y65e_TGGPbw

http://www.youtube.com/watch?v=Uys1uZZ1krw

A nice toy but nothing for real TH because the reached distance is those of a pinpointer.

[Funfinder]

I have the solution:

The transmission coil is directly around the left shoe and the reception around the right (or vice versa)!

The advantage of this is that you can attach the "coil-tape" to almost every shoe. But this coil stripe has to be made out of plastic or leather etc. so it doesn't gets deformed while walking.

Just the used MD-circuit has to deal with the changing coil distances if the feet are moving. Any idea which one would work the best here?

Otherwise a circuit is needed where 1 coil does the whole job, rx and tx "simultan".

[mikebg]

Palm metal detector

Made in England

[mikebg]

What about glove metal detector

Metal detector in the glove.

[moodz]

What about matching hand detector too ?



handee_detector.pdf

[mikebg]

PATTEN DETECTOR

The operator moves pattens as at cross-country skiing in order not to vary the height of the sensor. Note that dimension D is an amount so small that enter the toes only.

[J_Player]

Not! I have not inserted emoticons!
This is a serious design to avoid two drawbacks of sandal metal detector:
1. Modulation of AIR signal due to coil deformation and
2. Modulation of GND signal due change of coil height.
Both sentences (translated by you exactly) mean that it is impossible to avoid the main drawback of shoe detector - productivity. Even to split sensing head in both shoes, as shown in cartoon, it is impossiple to cover so fast search area as a conventional metal detector.
Qiaozhi, explan me, please, how you make so exact translation!

If we are to arrive at a serious design, no shoe detector would work without some weird walking techniques by the user of the shoe detector.
Let us suppose a shoe detector was constructed that kept the coil a distance above the ground that gives good detection.
Then every footstep taken by the user would require he raise his foot (and shoe detector) from the ground, which spoils the good detection.
The only things he could detect would be things that are in range of the spots where he steps on the ground.
And he may need to shuffle his foot around if he wasn't sure if he got a hit.
In any case, he would be missing 90% of the targets in his path.

Solution:
The shoe detector is much better suited to cross country skiing. If the same detector was mounted on a pair of cross country skis, there would seldom be a need to raise the skis off the ground. A person could travel slowly enough to catch the dig signals in his path. This concept could also work with toboggans and sleds if they are made with non-metal parts. But these applications can only be used in places where there is snow on the ground.

Solution - Rev 1.10:
Ditch the skis and toboggans to make the detector work in non-snow locations. Use a wagon instead. Most wagons have enough metal on them that you would need to keep the coil separated from the wagon far enough to avoid metal interference. A PVC pipe trailer would work with plastic wheels and axle to mount the detector coil. Hmmm... Who wants to ride a wagon around? Too much work, and you might look kind of silly.

Solution - Rev 1.20:
Replace the wagon with an off-road ATV towing a plastic trailer with the detector coil. No more need to push the wagon around. It seems people are already using this method for searching large fields. But this is only suitable for places you are allowed to drive an ATV. What about the places you ordinarily would walk that you can't take an ATV?

Solution - Rev 1.30:
Leave the ATV at home and get out your VLF or PI metal detector. Take it to a place where you want to hunt treasure. Then walk with the detector while swinging the coil a couple inches above the ground. All problems of previous solutions are solved, and you get better detection too. Somehow, I don't feel like I deserve credit for this solution. Some metal detector companies figured it out a long time ago.

Best wishes,
J_P