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Jan 19, 2011, 07:15 PM
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shastamike's Avatar
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How does a micro-heli gyro work?


I know that a gyroscope is basically a wheel spinning and is held in place by precession. That is on a large scale that I can see. I'm assuming that there aren't 3 little wheels in that little yellow RX. Anyone know how this works?
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Jan 19, 2011, 07:46 PM
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Originally Posted by shastamike
I know that a gyroscope is basically a wheel spinning and is held in place by precession. That is on a large scale that I can see. I'm assuming that there aren't 3 little wheels in that little yellow RX. Anyone know how this works?
There's two types of R/C helicopter gyros in wide use today: piezoelectric and MEMs.

Description of how a piezoelectric gyro works:

http://en.wikipedia.org/wiki/Piezoel..._accelerometer

Toshi
Jan 20, 2011, 08:25 PM
Hang on, turbulence ahead
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Wikipedia also has a discussion of MEMS gyros, under the more general heading of Vibrating Structure Gyroscopes:

http://en.wikipedia.org/wiki/Vibrati...ture_gyroscope
Jan 20, 2011, 09:58 PM
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Quote:
Originally Posted by Heli Hacker
Wikipedia also has a discussion of MEMS gyros, under the more general heading of Vibrating Structure Gyroscopes:

http://en.wikipedia.org/wiki/Vibrati...ture_gyroscope
A MEMS gyro is a VSG, just manufactured using a similar lithographic process to many microchips. Which is what makes them cheap enough for Hobby use.


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