| ??? 01/15/11 17:19 Read: times |
#180623 - not necessarily a good idea Responding to: ???'s previous message |
I also have a reverse biased 5.1v zener across that to clamp any potentially damaging peaks.
not necessarily a good idea, Zeners are (for this) awfully slow. however then through a rectifying diode into a R/C circuit that captures the sample for several milliseconds (1 Mohm and 2200 pF). probably adds whatver additional suppression you need. Erik |
| Topic | Author | Date |
| measuring piezo voltage | 01/01/70 00:00 | |
| Oscilloscope | 01/01/70 00:00 | |
| you ned to read up on ... | 01/01/70 00:00 | |
| piezo sensing | 01/01/70 00:00 | |
| Careful with resolution or strength will feel "random" | 01/01/70 00:00 | |
| Really need ADC? | 01/01/70 00:00 | |
| source impedance | 01/01/70 00:00 | |
| Once digital? | 01/01/70 00:00 | |
| Piezo signals high dynamic range | 01/01/70 00:00 | |
| not 8051 specific? | 01/01/70 00:00 | |
| Some Reference Materials | 01/01/70 00:00 | |
| reference materials | 01/01/70 00:00 | |
| Two comments | 01/01/70 00:00 | |
| one comment on a comment | 01/01/70 00:00 | |
| made good progress | 01/01/70 00:00 | |
| not necessarily a good idea | 01/01/70 00:00 | |
zener | 01/01/70 00:00 | |
| one important thing | 01/01/70 00:00 |