However, as I was not very familiar with these and the magnitudes involved, I realized that the feedback (a.c.a. vibration) is almost impossible to perceive through the glass surface.
I was wondering if anybody in this community would have any idea on what elements would create a "feelable" click in your finger when touching it.
The effect I am looking for is somewhat like the feedback of a smartphone. I know that these have small haptic engines and still can feel it very well, but through my glass I need something more powerful.
That comes to about 140 grams, so whatever is going to work with that has to be able to accelerate 140 grams
hard enough to be felt. What that level is defeated my Google search alas, but that LRA is miniscule and I suspect something considerable bigger, with much more mass, is going to be needed, perhaps an audio
exciter like this: https://uk.rs-online.com/web/p/speaker-drivers/8765266
Thank you for your reply Mark. Yes, the thing is minuscule (8mm) so the mass must be a couple of grams...
I understand your proposal, although I don't know how I can move that enormous coil. Should I use some external power source with a relay?
Also a doubt pops up in my mind: will it generate a tone? I am looking for a "click" sound at much and a very short haptic response, I have seen that the minimum frequency of this thing is 300Hz...
