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Author Topic: Mechanical Resonance (Projects)  (Read 21673 times)

Offline massive

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Re: Mechanical Resonance (Projects)
« Reply #60 on: April 17, 2016, 06:09:00 AM »
there was a story of a kid who made a model car that ran on on tuning fork , zero info on it.

Ive got tuning fork here , A440 = 80.5mm from centre of prongs to the tips
the higher freq forks are smaller and shorter

largest mass fork in ebay list is the C128 hz

a fork held near a guitar pick up coil generates electrical freq 440 hz signal , no different from a vibrating string in front of pick up
 

Free Energy | searching for free energy and discussing free energy

Re: Mechanical Resonance (Projects)
« Reply #60 on: April 17, 2016, 06:09:00 AM »

Offline gotoluc

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Re: Mechanical Resonance (Projects)
« Reply #61 on: April 17, 2016, 06:22:07 AM »

Got an idea...  Tuning forks.  Not expensive really
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR12.TRC2.A0.H0.Xtuning+fork.TRS0&_nkw=tuning+fork&_sacat=0

These are interesting but pricey.
http://www.ebay.com/itm/New-7-Energy-Bar-Chakra-Chimes-louder-sound-than-tuning-forks-7-wood-mallets-/162020874509?hash=item25b932590d:g:sQEAAOSw-zxWnecu


Mags

You're not the only one that got that idea!...  I ordered mine on the 13th and will have it on Monday: http://www.ebay.com/itm/131526761089

Unfortunately my time at the lab has ran out so it may be a while before I'm able to put the device together.

Luc


Offline Magluvin

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Re: Mechanical Resonance (Projects)
« Reply #62 on: April 17, 2016, 06:25:04 AM »
there was a story of a kid who made a model car that ran on on tuning fork , zero info on it.

Ive got tuning fork here , A440 = 80.5mm from centre of prongs to the tips
the higher freq forks are smaller and shorter

largest mass fork in ebay list is the C128 hz

a fork held near a guitar pick up coil generates electrical freq 440 hz signal , no different from a vibrating string in front of pick up

Thinking of putting magnets on it. It will lower the freq. I wonder how your pickup would sound with the mags on it?

Just thoughts as we go along. I have a  vented subwoofer design im going to do here too.  Will be a little slow at getting things up but they will be up.

Did some tests today by putting 3/4 x 1/2 n52 disks on the pen half way up the strip and driving that with the 8ohm coil I had from the change out. Have to go over that tomorrow. Was getting more V out of the top 4ohm coil than I was driving the 8ohm with. Going to try different placements and make a lower base for the driver coils.

With only one top coil driven, the opposing coil as a pickup, the trace for the pickup is much less and distorted, like not a plump sine but a malnourished one. So it shows a pretty bad eff level. A very decent eff level should gen almost as much as drive input. So gotta work on that. 

Still learning with this simple setup. There are any number of mods that can be done and adjustments therein. 

Mags

Offline massive

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Re: Mechanical Resonance (Projects)
« Reply #63 on: April 17, 2016, 07:41:59 AM »
You're not the only one that got that idea!...  I ordered mine on the 13th and will have it on Monday: http://www.ebay.com/itm/131526761089

C64 hz is even bigger , whole octave lower than 128 hz fork

64hz is pretty close to 60hz used for a motor !

interesting.......


Offline tinman

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Re: Mechanical Resonance (Projects)
« Reply #64 on: April 17, 2016, 11:29:36 AM »
Hey Brad

Got an idea...  Tuning forks.  Not expensive really
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR12.TRC2.A0.H0.Xtuning+fork.TRS0&_nkw=tuning+fork&_sacat=0

These are interesting but pricey.
http://www.ebay.com/itm/New-7-Energy-Bar-Chakra-Chimes-louder-sound-than-tuning-forks-7-wood-mallets-/162020874509?hash=item25b932590d:g:sQEAAOSw-zxWnecu




Thinking of ways to apply them here with the coils and mags.

https://www.youtube.com/watch?v=hiHOqMOJTH4




Mags

Maybe the travel will not be enough?
Maybe a magnet on a wine glass :o lol
Sorry,couldnt resist that one.


Brad

Free Energy | searching for free energy and discussing free energy

Re: Mechanical Resonance (Projects)
« Reply #64 on: April 17, 2016, 11:29:36 AM »
Sponsored links:




Offline AlienGrey

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Re: Mechanical Resonance (Projects)
« Reply #65 on: April 17, 2016, 12:49:05 PM »
Maybe the travel will not be enough?
Maybe a magnet on a wine glass :o lol
Sorry,couldnt resist that one.


Brad
Some frequencies are far more important than others, but here, what happens if we use a half frequency to drive the one this guy is using or even double  ?

ag

Offline Magluvin

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Re: Mechanical Resonance (Projects)
« Reply #66 on: April 18, 2016, 01:28:09 AM »
You're not the only one that got that idea!...  I ordered mine on the 13th and will have it on Monday: http://www.ebay.com/itm/131526761089

Unfortunately my time at the lab has ran out so it may be a while before I'm able to put the device together.

Luc

Cool. They are at a good price for testing them here.  ;) Luc, always a step ahead of the crowd. ;D

Mags

Free Energy | searching for free energy and discussing free energy

Re: Mechanical Resonance (Projects)
« Reply #66 on: April 18, 2016, 01:28:09 AM »
Sponsored links:




Offline Magluvin

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Re: Mechanical Resonance (Projects)
« Reply #67 on: April 18, 2016, 01:40:34 AM »
Maybe the travel will not be enough?
Maybe a magnet on a wine glass :o lol
Sorry,couldnt resist that one.


Brad

Thought about that. But may be good anyway. If higher freq increases the efficiency, smaller movement doesnt seem to be an issue.  ;) As you have already shown compared to my 2.25 distance of travel of my mags. Will be interesting I think as we go along. It maybe a down the road we end up using quartz transducers from ultrasonic cleaners.

http://www.ebay.com/itm/40khz-35W-Ultrasonic-Piezoelectric-Clean-Transducer-Plate-Electric-Ceramic-Sheet-/221962064992?hash=item33adf85460:g:6jwAAOSwHQ9WZUE9

http://www.ebay.com/itm/50W-40KHz-Ultrasonic-Piezoelectric-Cleaning-Transducer-Ultrasonic-Cleaner-/291532940937?hash=item43e0b7a689:g:Ix0AAOSwjVVVwyJo

Still decent prices for experiments.

Mags


Offline gotoluc

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Re: Mechanical Resonance (Projects)
« Reply #68 on: April 18, 2016, 02:50:34 AM »
Cool. They are at a good price for testing them here.  ;) Luc, always a step ahead of the crowd. ;D

Mags

Yes, best price on ebay for that low a frequency.

Finding the most efficient way to make it ring with minimal input is obviously the most important part.
This will require many tests.
A physical electromagnet hammer, like the old bells used should be tested.
We also know that using a Tuned Resonator box will allow many tuning forks of the exact frequency to ring with no additional input.
If there's any possibility of extra power it will be from the freely Resonating forks. One hammered with no load and the rest Resonating with a load.

I've been wanting to try this for years!... but for now, one step at a time

Luc

Offline tinman

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Re: Mechanical Resonance (Projects)
« Reply #69 on: April 18, 2016, 03:10:35 PM »
@ Poynt--and all here interested.

Below is a few scope shot's in regards to holding the magnet still,and raising the frequency to see if there was a phase shift.

The first scope capture was taken at the resonant frequency of the oscillator,where i found the resonant frequency with the oscillator in play,and then stopped the oscillations.
The following two scope shots are at the higher frequencies with the oscillator stopped.
Please note the V/PD changes i had to make as i raised the frequency.
Even at 500Hz,i did not see much of a phase shift with the oscillator stopped.
CH1 is across the secondary /5 ohm resistor,and CH2 is across the 3 ohm CVR.
I do not know the dot convention,as the primary is sealed in apoxy resin,and i can find my compass.

In my next post,i carried out a small test that shows the bulk of the current in the secondary is being induced by the oscillating magnet.


Brad

Free Energy | searching for free energy and discussing free energy

Re: Mechanical Resonance (Projects)
« Reply #69 on: April 18, 2016, 03:10:35 PM »
Sponsored links:




Offline picowatt

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Re: Mechanical Resonance (Projects)
« Reply #70 on: April 18, 2016, 03:25:18 PM »
@ Poynt--and all here interested.

Below is a few scope shot's in regards to holding the magnet still,and raising the frequency to see if there was a phase shift.

The first scope capture was taken at the resonant frequency of the oscillator,where i found the resonant frequency with the oscillator in play,and then stopped the oscillations.
The following two scope shots are at the higher frequencies with the oscillator stopped.
Please note the V/PD changes i had to make as i raised the frequency.
Even at 500Hz,i did not see much of a phase shift with the oscillator stopped.
CH1 is across the secondary /5 ohm resistor,and CH2 is across the 3 ohm CVR.
I do not know the dot convention,as the primary is sealed in apoxy resin,and i can find my compass.

In my next post,i carried out a small test that shows the bulk of the current in the secondary is being induced by the oscillating magnet.


Brad

These captures appear to show the yellow trace leading the blue trace by 90 degrees (or lagging by 270).

What does it look like with the secondary unloaded?

I believe your secondary connections may need to be flipped...

PW

Offline tinman

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Re: Mechanical Resonance (Projects)
« Reply #71 on: April 18, 2016, 03:44:48 PM »
This test was carried out to see if it is actually the oscillating magnet that is creating most of the current flow in the secondary,or the field distorting the field of the primary.

I added a diode in series with the FG output and primary coil to chop the bottom half of the AC.
The schematic below--not sure of dot convention,or how the common ground between my FG and scope will affect the seen results--but they are clear.

The first scope shot is with out the magnetic oscillator in play,and the second scope shot is with the magnetic oscillator in play.
As we can see,it is the oscillating magnet that is inducing the bulk of the EMF across the secondary/resistor combo.

My next goal is to get the 1:1 transformer wound,and also to set up the laser timing to see where the magnet is in relation to the primaries current flow.


Brad


Offline tinman

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Re: Mechanical Resonance (Projects)
« Reply #72 on: April 18, 2016, 03:48:44 PM »
These captures appear to show the yellow trace leading the blue trace by 90 degrees (or lagging by 270).

What does it look like with the secondary unloaded?

I believe your secondary connections may need to be flipped...

PW

I will head out to the work shop now,and get that for you.

BBS


Brad

Offline tinman

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Re: Mechanical Resonance (Projects)
« Reply #73 on: April 18, 2016, 04:17:31 PM »
These captures appear to show the yellow trace leading the blue trace by 90 degrees (or lagging by 270).

What does it look like with the secondary unloaded?

I believe your secondary connections may need to be flipped...

PW

First scope shot-secondary unloaded---open
Second scope shot-scope probe and ground swapped over on secondary coil--still open
Third scope shot-same as second,but with oscillator in play.


Brad


Offline gotoluc

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Re: Mechanical Resonance (Projects)
« Reply #74 on: April 18, 2016, 05:49:10 PM »
Below is a video demo I did 7 years ago demonstrating that a magnet vibrating or oscillating at the same frequency as the coil will cause a reduction in power consumption. In my case 3 times less power at the maximum frequency of 160Hz.
There is a limit to how far you can increase the frequency, which I think is caused by the friction or losses the magnet experiences while in oscillation.

Quite sure this is part of what is going on in Brad's tests as far as input power reduction.

Link to video: https://www.youtube.com/watch?v=J2qVcwJN9hY

Luc

Free Energy | searching for free energy and discussing free energy

Re: Mechanical Resonance (Projects)
« Reply #74 on: April 18, 2016, 05:49:10 PM »

 

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