Low Cost Gyros and Accelerometers

[Jeanseb]

Hello,

This is a newbie question: what are the current low cost gyros and accelerometers used for UAV auto pilots?

Thank you in advance.

[Mr.RC-CAM]

Gyro sensors:
Tokin: www.nec-tokin.com/english/product/piezodevice2/ceramicgyro.html
Murata ENC03: www.murata.com/catalog/s42e3.pdf
Gyration MG1101 (3-axis): www.gyration.com/us/tech/technology.htm

Accelerometers:
Analog Devices ADXL202: www.analog.com/en/prod/0,2877,ADXL202,00.html
Memsic MXD2125: www.memsic.com/memsic/products/productselector.asp

There are more choices out there. These tend to the most popular. Gyro sensor availability (in small volumes) is usually a problem. So cannibalizing products like hobby gyros and gyromice is the usual workaround.

RC-CAM

[LukeZ]

For gyro/accelerometer combination circuits, you might take a look at the very nice SparkFun boards: http://www.sparkfun.com/shop/index.php?shop=1&cart=478448&cat=71& (scroll down on the page).


Luke

[Unterhausen]

the Freescale 3 axis accelerometer looks pretty nice. Sparkfun sells it and uses it as part of their 6dof imu. Analog devices also sells rate gyros.

[Jeanseb]

Hello All,

Thanks for your inputs!

I'll take a look at these products.

jeanseb

[violit]

Murata ENC03 is sensitive to temperature,a very little change of temperature can be disturb its zero_point. Tokin is similar.
So I think it usually used for shake measure,but not INS.
UAV INS,mayby:
ADXRS150 http://www.analog.com/en/prod/0,2877,ADXRS150,00.html
EWTS62 http://industrial.panasonic.com/www-data/pdf/ARC0000/ARC0000CE8.pdf
EWTS82 http://industrial.panasonic.com/www-data/pdf/ARC0000/ARC0000CE1.pdf

[mrbisset]

Do any of these gyros have outputs for servo control? I.E. could I get a 3 axis gyro and use it for roll/pitch/yaw stabilization?

Caleb

[vbms]

the main idea is to conect your sensors with somthing u can program like an acroname brainstem www.acroname.com microcontroller. check out that site actualy, thy have some nice examples done using thr products like a gps guided boat, an interface between your rc recever and the servos, ... u could make a co pilot from that! sure u can get some gyros, tilt stuf to interface with it to... i2c comercial input output, iv got 1 :) thr fun and easy to program especialy if u have some servos and a few leds to controle... check it out. :p