| ??? 03/21/07 10:20 Read: times |
#135489 - Measuring RMS Responding to: ???'s previous message |
George Micgy said:
For 245 V rms i get 467 Vp-p (A/D value)
For 230 V rms i get 441 Vp-p (A/D value) For 200 V rms i get 390 Vp-p (A/D value) For 170 V rms i get 339 Vp-p (A/D value) How did you measure those RMS values? Are you sure you're not confusing phase-to-phase voltages with phase-to-neutral, or something? What values do you measure at the input pins to the A/Ds? Are you sure you don't have some scaling factors enabled in the A/Ds? |
| Topic | Author | Date |
| Calculate Rms voltage | 01/01/70 00:00 | |
| Eh??? | 01/01/70 00:00 | |
| Calculate Rms voltage | 01/01/70 00:00 | |
| Measuring RMS | 01/01/70 00:00 | |
Watch for noise | 01/01/70 00:00 | |
| The fundamental question: | 01/01/70 00:00 | |
| Calculate Rms voltage | 01/01/70 00:00 | |
| Scope | 01/01/70 00:00 | |
| Calculate Rms voltage | 01/01/70 00:00 | |
| integers? | 01/01/70 00:00 | |
| Calculating RMS | 01/01/70 00:00 |