Hi All,
I am trying to measure angular velocity in my mobile robot. Currently I use a quadrature encoder. I want to improve the accuracy using "Velocity mode" quadrature, which measures the time between transition events such as channel A rising edges. But I am not sure all the quadrature decoder has this "capture" capability. So far I found that only PIC 18F2331 series have such capability. If I were to use PIC for measuring the velocity, pic can output PWM (10 bits) as measured velocity to a linux computer. Is this a good way for doing it? My linux computer has a Sensoray 526 board which has
4 channel quadrature input, (it can also be used for PWM output), analog in/analog out.Any suggestions are welcome.
Everett