I am planing to make a jig with a motor and a QE to enhance my understanding on PIC with QE encoders.
Since I cannot get my hands on a ready made Encoder easily I am planning to make one with the laser cutter and using 3mm plastic.
Need some basic info on it.
I understand the QE outputs a Grey code on phase A and B. And an additional one "Index" can be used to check the Revolution. I know the grey code can also be used to check for RPM.
If I am making why not make one with all so it can be used for all kinda testing, Right.
So here are the Q?
1. Does the phase A and B has to be EXACTLY 90° out of phase and why ?
2. Can I cut the slots at any width ? That is slot that light passes is wider than the one blocking ?
3. Does the slots need to be right angled (0°) to the sensor?
4. Does the sensor A & B need to be close or can I place them slots apart ? Even at 180° apart ?
5. Is there any exact position the Index sensor should be placed ?
6. Does angular position be studied with above setup ?
The lessons will include (but not all in one and sometimes all in one), Revolution counting, Motor speed controlling, Motor direction identification and RPM counting.
Angular position is out for now since it might be complicated.
Since I cannot get my hands on a ready made Encoder easily I am planning to make one with the laser cutter and using 3mm plastic.
Need some basic info on it.
I understand the QE outputs a Grey code on phase A and B. And an additional one "Index" can be used to check the Revolution. I know the grey code can also be used to check for RPM.
If I am making why not make one with all so it can be used for all kinda testing, Right.
So here are the Q?
1. Does the phase A and B has to be EXACTLY 90° out of phase and why ?
2. Can I cut the slots at any width ? That is slot that light passes is wider than the one blocking ?
3. Does the slots need to be right angled (0°) to the sensor?
4. Does the sensor A & B need to be close or can I place them slots apart ? Even at 180° apart ?
5. Is there any exact position the Index sensor should be placed ?
6. Does angular position be studied with above setup ?
The lessons will include (but not all in one and sometimes all in one), Revolution counting, Motor speed controlling, Motor direction identification and RPM counting.
Angular position is out for now since it might be complicated.