Thread: Sensors
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Unread 19-05-2006, 10:40
Mike Bortfeldt Mike Bortfeldt is offline
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FRC #1126 (& 1511)
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Join Date: Oct 2004
Rookie Year: 2004
Location: Rochester, NY
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Re: Sensors
We have used the following components and have found them to be reliable.

Gyro:
Analog Devices ADXRS300EB - $50
Used to calculate robot heading - mainly used for autonomous navigation.

Potentiometer:
Bourns 6639 Series - $11
if you are going to connect one to an analog input on the RC, use one with less than 2.5k ohm resistance (1k works well). Used to know the position of our multi-jointed arm in 2005, and our turret angle in 2006.

Optical Encoders:
Bourns ENT1J Series - $70
We've used these for 2 years in our drive transmissions. Used to measure distance traveled, and control drive speed (PID).
Grayhill 63K or 63R Series - $60
Used to control our 2006 shooting wheel speed.

Be careful when mounting the encoders to minimize side loads on the shaft as this can cause premature failure of the device.

Mike