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Re: Speed Sensors
There are really two options i am aware of: Accelerometers and gear-tooth/encoder/banner sensors.
The main advantage of an accelerometer is that it will mease the robot's net acceleration, not the wheel revolutions. Basically, it measures your actual acceleration (can be converted to velocity relatively easily). This means that in a situation (such as running into a wall/other robot) where your wheels are spinning out, you will get an accurate speed reading, whereas with an encoder-style sensor you will not!
However, encoders are certainly simpler to implement, so look at the application and decide what sort of accuracy and reliability you need, and then choose which sensor to use.
//Dillon Compton
Team 1394
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