Recent content by joshmorris

I've worked with LRAs before, but not piezo actuators. From a few google searches it seems as though most piezo sites use force as a measurement and they are capable of generating many thousands of Newtons so you should be able to get your acceleration. They also show some resonance frequencies...

Is that what it does..? That wasn't my intention, I'm just wondering how various magnets might affect my phones/credit cards...I read that north and south orientation magnets were found in refrigerator magnets...

Fascinating. What about something not so large/extreme, but different like alternating north and south-orientation magnets? (For the sake of example, a cubic centimeter or so)

I'd be interested to know if such a magnet could cause such large problems, or even affect the compass (in a more specific fashion than rbelli1 tested).

Like I said, I'm not really sure what "strong magnet" means... As per the example I stated earlier, would a 1 cubic centimeter neodymium magnet (under 24/7 contact with the phone) be enough to create such problems?

I'm as confused as bigguy is on this one, I'm concerned about things like the compass but I'm not sure. There's lots of people on the internet that are on either side so I came here to resolve it. As far as experience goes, I'm in high school right now and I'll be reading through the saturation...

Unfortunately, no. Could you please elaborate?

So I've been looking at information at how magnets interact with things like credit cards, smartphones, etc. and I've noticed that there's an endless debate as to how magnets affect smartphones. I realize that it has to do with the size of the magnet and exposure, so for the sake of example...

I figured it out, acceleration.

Not mW I knew that, I meant the rest of it...like could you say it framed like "x cubic centimeters" or like full meaning in practical terms... Like what does the g mean D:

There are other places where I saw mW instead of W, what does it mean though? -It is regarding maximum power densities

W/(g2 cm3) is the exact form

Homework Statement So I saw a unit "W/(g2 cm3)" And I'm pretty sure it's about power density...and I understand what W/cm3 is. It's watts per cubic centimeter...but what does the g mean? grams? If so, how does that fit in? :/[/B]