| ??? 03/03/10 17:13 Modified: 03/03/10 17:17 Read: times |
#173783 - Optical gratings? Responding to: ???'s previous message |
IIRC, it used to be Moiree fringes and all that stuff?
But maybe they use the same stuff that goes into optical mice these days? They're pretty cheap these days - you could get one and pull it apart... |
| Topic | Author | Date |
| What's inside digital callipers? | 01/01/70 00:00 | |
| Optical gratings? | 01/01/70 00:00 | |
| A linear encoder | 01/01/70 00:00 | |
| You don't really need a dedicated chip | 01/01/70 00:00 | |
| Thanks for link | 01/01/70 00:00 | |
| You can use my quadrature decoder | 01/01/70 00:00 | |
| Well I have already seen some neat FPGAs | 01/01/70 00:00 | |
| it is overkill | 01/01/70 00:00 | |
| Stiffnes would be a tiny bit of a problem | 01/01/70 00:00 | |
| possibly | 01/01/70 00:00 | |
| There's a shrimp that does that | 01/01/70 00:00 | |
| Here is a link | 01/01/70 00:00 | |
| Can you be more specific | 01/01/70 00:00 | |
| http://www.syncmos.sh.cn/SN6600HH.html | 01/01/70 00:00 | |
| another linky | 01/01/70 00:00 | |
| Curiosity ? | 01/01/70 00:00 | |
wikipedia: digital calipers = ... | 01/01/70 00:00 |