EEVblog 1400 - Hard Drive Micro Actuators are AMAZING!

[EEVblog]

Dave takes a closer look the micro actuator used in the 6TB Western Digital RED hard drive.

[Brumby]

@EEVblog   Any luck with that laser displacement device you mentioned in YouTube comments??

[Kleinstein]

The piezo actuators also work as sensors. So if connected right, the pizos should show a voltage in response to the mechanical force on the tip. This works really nice with the piezo discs from beepers - can be used for small experiments.
Chances are good to see the response the other way around: e.g. scope to the contact and some variable force to the tip.

I would expect the piezos to extend / contract in the longitudinal direction.

[dynorat]

Dave nice video i do have a ? what do you know about the  aluminum-air battery would be a battery battery 

[EEVblog]

Dave nice video i do have a ? what do you know about the  aluminum-air battery would be a battery battery

Nothing really, sorry.

[EEVblog]

@EEVblog   Any luck with that laser displacement device you mentioned in YouTube comments??

It's buried in my bunker somewhere...