Unable to account for frequency related to Magnet being pulsed by Inductor

[TinselKoala]

Ah, I think I understand now. You have an inductor--a coil wound of wire--near a magnet and you are driving the inductor with your signal generator at 959 Hz, and you are hearing the magnet/inductor combination "sing". Is that right so far? And you can also hear it singing at integer multiples of this frequency.

Are you quite sure it is the magnet singing, or could it be the coil wiring? Does it sing when suspended or only when sitting on something? Do you have a piezo element that you could tape to the magnet and monitor on your oscilloscope?

At first pass I am thinking you have invented the magnetic loudspeaker, and because that 959 Hz figure is nearly exactly 16 x 60 Hz, your setup is interacting with ambient fields at that frequency, and as you shift your FG slightly, you are hearing the beat notes that Mk1 describes.

[duff]

Ah, I think I understand now. You have an inductor--a coil wound of wire--near a magnet and you are driving the inductor with your signal generator at 959 Hz, and you are hearing the magnet/inductor combination "sing". Is that right so far? And you can also hear it singing at integer multiples of this frequency.

Are you quite sure it is the magnet singing, or could it be the coil wiring? Does it sing when suspended or only when sitting on something? Do you have a piezo element that you could tape to the magnet and monitor on your oscilloscope?

At first pass I am thinking you have invented the magnetic loudspeaker, and because that 959 Hz figure is nearly exactly 16 x 60 Hz, your setup is interacting with ambient fields at that frequency, and as you shift your FG slightly, you are hearing the beat notes that Mk1 describes.

Yes, I am sure the magnet is singing.

It sings sitting on the top of the plastic spool and it also sings if I put it on a piece of paper and raise it above the spool (up to six inches). The beating freq ceases at 959Hz.

I don't have a piezo handy - will check radio shack...

The question is exactly which  ambient fields is it interacting with and how do I prove it.

Here's a pic for better clarity.


-Duff

Edit: It also sings while holding it in my hand close to the top of the inductor though it is very faint.

[innovation_station]

IT IS SINIGING ....

NOW YOU NEED IT TO RINGGGGGG  AS IT TRAVELES ROUND AND ROUND ....


THEN TAP VIA ANY CORE U DESIRE ....

IST!

LOOKS LIKE THE INPUT DEVICE DRIVEING THIS COIL ...

[duff]

I stuck a radio shack piezo (p/n:273-059) on the magnet and it really didn't provide me any more information. The peizo  is producing sine output at ~2.87KHz which is probably its resonant freq. Spec show 2700 ±500Hz.

I can tune for maximum output which occurs at 1007Hz but that not what I'm after....

-Duff

[TinselKoala]

I stuck a radio shack piezo (p/n:273-059) on the magnet and it really didn't provide me any more information. The peizo  is producing sine output at ~2.87KHz which is probably its resonant freq. Spec show 2700 ±500Hz.

I can tune for maximum output which occurs at 1007Hz but that not what I'm after....

-Duff

I was hoping the piezo would show the magnet's oscillations but apparently not, or the impedance match is poor...I suppose you are confident of the calibration of your counter...
Anyway, if your mains frequency is 60 Hz like in North America, that's so close to 959/16 that it is very suggestive of a power line resonance.
If you can somehow power your apparatus outside somewhere, far from overhead transmission lines, you could see if the 959 Hz ringing and the beats are still there. Or you could examine your lab space with a good EM detector like a Tri-Field Meter, and see if you have unusually strong mains radiation there.