A few things about MEMS devices I have not been able to figure out is:
1. Is the sensing/moving structure actually disconnected from the rest of the device?
2. If so, how does it not get stuck to a side?
3. If it isn't disconnected, doesn't the friction from the connection cause an offset in the reading?
4. How do they etch the structure so that it is disconnected from the layer below?
I don't have time to watch the video but I was curious why MEMS gyros were shaped thus. Apparently it is to maximize sensitivity through the Coriolis force.
It's cool'cause there's a commercial baked into the middle of it.
A few things about MEMS devices I have not been able to figure out is: 1. Is the sensing/moving structure actually disconnected from the rest of the device? 2. If so, how does it not get stuck to a side? 3. If it isn't disconnected, doesn't the friction from the connection cause an offset in the reading? 4. How do they etch the structure so that it is disconnected from the layer below?
It would explain why every smart phone I have ever owned has gotten stuck in landscape until I shook it hard enough.
"How" Gyroscopes Got So Small.
God, I so hate the auto-title "fixing" feature on HN.
I don't have time to watch the video but I was curious why MEMS gyros were shaped thus. Apparently it is to maximize sensitivity through the Coriolis force.
https://en.wikipedia.org/wiki/Vibrating_structure_gyroscope
Their peculiar geometry reminds me of computer-designed antenna.
https://en.wikipedia.org/wiki/Evolved_antenna