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Unread 24-01-2014, 00:09
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Alan Anderson Alan Anderson is offline
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FRC #0045 (TechnoKats)
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Re: Gyros in place of potentiometers?/Gyro intergration with jaguars

What most people call a Gyro in the context of FRC robots is actually a yaw rate sensor. It measures how quickly it is rotating. It is not really suitable for measuring an absolute angle on a moving robot part. Depending on how precise you need to do the measurement, you might be able to use a two-axis accelerometer to compute the direction of gravity relative to the boom, though that will have dynamic errors whenever the robot itself is accelerating.

You don't need to mount a potentiometer (or other absolute angle sensor) directly to the rotating component. You can use a linkage from the component to a "follower" arm to copy the rotation of the boom to a piece that is designed for a pot.
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