Recent content by juanitopapito

I'm looking to tutor someone, but I need to find small masses like 1 gram, 10 gram, 25 gram, 100 gram things for demonstrations/experiments etc. As small as possible would be nice, like no bigger than a quarter. But whenever I try to google for weights I just get weightlifting things like...

I'm looking at piezos...I plan to use a cantilever (probably)... How can I tell how much force it would take on each piezo to generate a watt...and what about the frequency...?

what else is necessary?...

Consistent 200 hz... Typically 0.1 G acceleration on a 1 kg object (so 20 G on say a 5 gram harvester...)...sometimes it is 1 G on the 1 kg, but rarely.. Is there any way I can get 1 W+ of energy from it using a piezo or other vibration harvester? especially on the low end so it is...

Hi there... I have an application where I know the vibration frequency/force/acceleration of the source... How can I find the maximum theoretical power output (in mw/watts...) of a tuned piezo where its resonance is the same as the source vibration frequency...