Self charging detector.

[dbanner]

I am thinking the motion of swinging the detector to and fro can be converted to electrical energy by some mechanism or device for some recharging of batteries.

[Skippy]

Just use a PV cell system. You only need 300 milliwatts for some of the more frugal machines ... ACE250, Teknetics T2 for example.
A 500 mW panel would only be 8cm x 8cm. approx.

Hmm. I see you've edited your post to remove the PV cell reference........

[dbanner]

Yea, photo V better, simple way. I was curious to know if there was a unit which generates energy from shaking or swinging, might add another source for charging batteries. If you swing for hours without finding much, at least you get back a little.

[Tibuck19]

I don't know about the electronica side of it, but it would be easy to make a mechanical pendulum system, that would be fitted to gears and a small motor to act as a generator. Or lol Use better batteries lmaoo My 3 18650's can last all week with a few hours of detecting a day.

[kt315]

DB try learn new for you matter - solar bank DIY kit https://www.ebay.com/sch/i.html?_fro..._sop=15&_pgn=2
believe my thats nice.
i made https://www.ebay.com/itm/Dual-USB-Po...vWFw:rk:1:pf:0

[chevesne]

Kinetic charger.
For example

[Skippy]

Thanks for posting that kinetic charger link, monsieur, it was a very interesting read.
Gotta say, I would use centre-tapped generator coils, and make the 'bridge rectifier' with two diodes, for lower voltage drop.

[dbanner]

With such a device, it might be possible to run a frugal machine off of a standard li-ion phone battery, since the battery would always be charging when swinging detector? The power consumed is Immediately replaced by device. Seldom ever having to plug in external charger.
Thanks for posting the link. Interesting.

[Skippy]

I think a two-cell version of that charger would also work well, with a buck converter to drop down the 7 - 8 Volts to regulated 6 V , for a (4 x AA) powered detector. It would be slightly more efficient, all those diodes would be less lossy if all the voltages were higher.

[Ferric Toes]

Google 'mine detector with kinetic generator' and you will find such a beast in the January 1999 edition of Popular Science.

Eric.

[dbanner]

Any volunteers for field testing?

[kosacid]

how about a windup one wee don't get much sun lol, how about charging a super cap?

[Carl-NC]

Google 'mine detector with kinetic generator' and you will find such a beast in the January 1999 edition of Popular Science.

Eric.

I saw that particular detector at Roke Manor where Chris Richardson worked. They had it in the lobby in a glass case, so I pulled out my camera and took some pictures. They promptly confiscated my camera as photos at Roke were strictly forbidden. I got it back though, with photos intact.

[homefire]

Just go with Nuclear Batteries and don't worry about it for 50 or 60 years.

[nickel_n]

may be you can adapt one of them
linear induction, Faraday flashlight, or "shake flashlight"
https://en.wikipedia.org/wiki/Mechan...red_flashlight
https://www.youtube.com/watch?v=afD4KcSV_Nc