| ??? 11/24/06 04:48 Read: times |
#128472 - I am confused as to Responding to: ???'s previous message |
Hi Jez,
I want only analog conditioning ,I dont want to tune filters ,infact band reject everything that is not required and want to make a microcontroller as counter and count the frequency . Your Idea of schmitt trigger seems to be good but tuning filters are not reliable . Please see waveform below I want to have an intelligent guess as to what approach will be best suited. http://upload2.net/page/down...6.JPG.html Can we apply zero cross counting to such a waveform full of harmonics ,after BPF , amplifiers , schmitttrigger etc AP |
| Topic | Author | Date |
| oscillation analysis | 01/01/70 00:00 | |
| You might want to look at ... | 01/01/70 00:00 | |
| Very narrow-band IIR filter? | 01/01/70 00:00 | |
| Explanations | 01/01/70 00:00 | |
| More details needed! | 01/01/70 00:00 | |
| More details .. | 01/01/70 00:00 | |
| Active filters | 01/01/70 00:00 | |
| Active filters | 01/01/70 00:00 | |
| so its frequency modulation basically | 01/01/70 00:00 | |
| I am confused as to what you do want | 01/01/70 00:00 | |
| I am confused as to | 01/01/70 00:00 | |
| yeah well horrendous problems | 01/01/70 00:00 | |
| Spectrum Analyses.. | 01/01/70 00:00 | |
Harmonics... | 01/01/70 00:00 |