| ??? 02/28/07 20:03 Read: times |
#133963 - What's it??? Responding to: ???'s previous message |
Erik Malund said:
which WILL give fast oscillations on the pulses.
Actually, not sure what you mean here... Having the encoder tied to a belt will induce positional lash, based on how tight the belt is, how uniform the teeth in the belt are, how uniform the teeth in the gears are, and so on, all of which can produce positional error when using the encoder as a positional feedback device. This isn't the case in this guys problem. He's just trying to figure out why the count he measures from the encoder don't match up with the pulses he sends to the stepper... Erik Malund said:
With proper (fast and accurate) quadrature detection this will be seen as 'double reversals and disappear.
You really lost me on this comment...what's a "double reversal"? |
| Topic | Author | Date |
| Rotary Encoder | 01/01/70 00:00 | |
| Step to Encoder Ratio | 01/01/70 00:00 | |
| Rotary Encoder | 01/01/70 00:00 | |
| Problem With Steppers | 01/01/70 00:00 | |
| this could be your problem | 01/01/70 00:00 | |
| Rotary encoder (3) | 01/01/70 00:00 | |
| I'd be really curious ... | 01/01/70 00:00 | |
| Reading Encoders | 01/01/70 00:00 | |
| That's IT | 01/01/70 00:00 | |
| What's it??? | 01/01/70 00:00 | |
| well it could very well be | 01/01/70 00:00 | |
| This sounds right... | 01/01/70 00:00 | |
| In that case maybe he is actually reading 'a' | 01/01/70 00:00 | |
| Still laughing over that post... | 01/01/70 00:00 | |
Positioning using an encoder as feedback | 01/01/70 00:00 |