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Unread 17-01-2014, 22:25
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Re: Accelerometers and speed

Quote:
Originally Posted by otherguy View Post
You could look at using an IMU.
An IMU is a set of accelerometers and gyroscopes (in this three accelerometers and three gyros to detect all 6 degrees of freedom). The nav6 includes a magnetometer, which may help mitigate gyro drift, but won't do anything for linear acceleration.

In general, you may have success with an accelerometer (or an IMU containing one) if your margin for error is large enough (say, if you just want to drive forward ~8-12 feet in auto to pick up the 5 points, and want a sensor instead of timing). But if you want really accurate positioning you will probably need a different sensor (probably encoders).