Measuring the Speed of a DC Motor from its Encoder

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Vedat Erol
Vedat Erol 2022-5-26
回答： Shang-Chuan Lee 2022-6-10
Hi everyone, I am pretty new at this. I made a Simulink project that can control the direction of the motor and the PWM of the motor. What I wanted to do is to read encoder and measure the speed from it. I tried some algorithms I found on the internet but they don't work. When I increase/decrease the speed, the output of the algorithm changes absurdly. I would really apreciate any help. Thank you.
Note: I tried reading encoders from Analog input and Digital Input. Nothing changes.
Blocks:
Output(60 PWM):
Output(90 PWM):
Output(120 PWM):

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回答（1 个）

Shang-Chuan Lee
Shang-Chuan Lee 2022-6-10
Hi Vedat,
We have many resources to help you get started on controlling servo motor using Arduino Hardware. You may refer to this motor control example for more information. https://www.mathworks.com/help/supportpkg/arduino/ref/servo-control.html
To measure the encoder signal such as speed and angle, we have Arduino hardware support package - Encoder block to help you measure incremental position and direction of rotating motor.
https://www.mathworks.com/help/supportpkg/arduino/ref/encodersensors.html
This link provides you an overview of running Simulink models on Ardunio boards.
https://www.mathworks.com/matlabcentral/fileexchange/40312-simulink-support-package-for-arduino-hardware?s_tid=ta_fx_results
Best regards,
Shang-Chuan Lee

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