Naked Science Forum

Non Life Sciences => Technology => Topic started by: Simulated on 11/04/2008 00:30:57

Title: What makes the cell phone vibrate?
Post by: Simulated on 11/04/2008 00:30:57
What is the thing that makes the phone vibrate?

Thanks Sim  [:)]
Title: What makes the cell phone vibrate?
Post by: Madidus_Scientia on 11/04/2008 14:20:02
I believe its just a small electric motor that spins a small unbalanced weight around
Title: What makes the cell phone vibrate?
Post by: Simulated on 11/04/2008 16:34:21
Intersting
Title: What makes the cell phone vibrate?
Post by: lyner on 11/04/2008 20:30:18
What is the thing that makes the phone vibrate?

Thanks Sim  [:)]
someone ringin' you up?
Title: What makes the cell phone vibrate?
Post by: Simulated on 11/04/2008 21:40:01
Um that things purdy big. They obviosly make smaller ones?
Title: What makes the cell phone vibrate?
Post by: graham.d on 11/04/2008 23:53:26
Hmm, I have not seen one like that. They are usually smaller and and flatter so they are mounted on a pcb without too much height. The motor drives an eccentically weighted disc.
Title: What makes the cell phone vibrate?
Post by: TheHerbaholic on 27/04/2008 17:33:19
if any of you have an old ps2 pad open it and you see them turning things that make it vibrate, you can take them out and put it back in again without it braking aswell. My mate had a green pad and we swapped it so we had pads half green and half black lol, the pad still works too lol
Title: What makes the cell phone vibrate?
Post by: RD on 06/05/2008 14:58:44
Um that things purdy big. They obviosly make smaller ones?
http://www.fastcomponents.co.uk/product_info.php?products_id=92&osCsid=6411a31b385c41b003c5495cd898ab2d
Title: What makes the cell phone vibrate?
Post by: McQueen on 09/05/2008 14:56:44
Surely, it's something like an electric calling bell in the way that it works and not so much like a motor?
Title: What makes the cell phone vibrate?
Post by: lyner on 09/05/2008 21:46:55
No - an eccentric weight on a motor is far more efficient - transferring a rotation of a small motor to a linear reciprocation  is better than using a huge solenoid. For a start, the spectrum of the vibration using a rotation is largely the one frequency you want.