Hello,
I have different models of permanent magnet DC motors. I attach a sample picture. They range from 90 to 130V. I want to design a closed loop speed control system using PWM. My feedback is the actual speed of the motor. Since I have different models, so they have different physical appareance, what kind of universal sensor I can use to measure speed in all of them? I mean, a sensor that I can easily attach on any motor and process the speed signal in a microcontroller. I do not need very high precision, so the simplest sensor would do the job.
I have different models of permanent magnet DC motors. I attach a sample picture. They range from 90 to 130V. I want to design a closed loop speed control system using PWM. My feedback is the actual speed of the motor. Since I have different models, so they have different physical appareance, what kind of universal sensor I can use to measure speed in all of them? I mean, a sensor that I can easily attach on any motor and process the speed signal in a microcontroller. I do not need very high precision, so the simplest sensor would do the job.
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