From: M. Adam Davis <adampic@UBASICS.COM>
Subject: Re: [EE]: Piezo Gyro Bulk Buy Anyone?


An article with a schematic:

http://www.e-insite.net/ednmag/index.asp?layout=article&articleId=CA46375&pu
bdate=12/09/1999


>These only detect rotation in one axis
...
>So for a full 3 axis sensor I'd need 3 of them?

That is correct, but in many applications you only need two to stabilize a
couple axis, or maybe even one. And you might want to buy a spare, from what
I've read from heli & airplane hobbyists, they can be fragile, if not shock
mounted in foam. But nothing could save it from my flying skillz (or lack
thereof)!

>and can only detect up to
>90degrees per second, right?

Uh, thats what the datasheet specs. But the frequency response specs 100Hz
(flat at 10 Hz). Which means if your not trying to be agile like a bat, but
just trying to maintain stability, it may do? My crude DIY gyro (at
http://home.attbi.com/~scottxs/ ) detects rapid rates, but not low ones.

Scott


-Adam

Scott Stephens wrote:

>Is anyone intested in purchasing small quantities of Tokin Piezo Gyros for
>(tentative) $35/ea. ? These are sensors used to sense rotation rate, and
are
>found in devices to stabilize video camera images and robots.
>
>http://www.nec-tokin.net/now/nt-am/pdf_dl/sensors.pdf pg 28 GC-16D
>
>This is not for my profit (there isn't any!) but as a convenience for robot
>and sensor enthusiasts. If I get enough interest, I'll set up a web form
and
>find a credit card processor. BTW got any recomendations?
>
>Reply to me at scottxs@attbi.com with subject "TOKIN GYRO" if you are. No
>need to spam the list.

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