Mechanical Resonance (Projects)

[tinman]

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

[tinman]

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

[tinman]

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

[gotoluc]

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

[MagnaProp]

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...

Nicely done.

I recall this video by woopy. What happens if we get your magnet and throw some metal chunks in there to vibrate around as well?

Fast forward to 2:22 in the video...
https://youtu.be/mLK1VG8h2Wc