| ??? 03/03/07 13:09 Read: times |
#134200 - uncertanity Responding to: ???'s previous message |
Hi Steve
Thanks for the sugesttions. The duty cycle is betwen 1% and 3% most of the time. So the pulse will be very short. I want to measure the pulse duration as precise as possibl. So converting the pwm signal to an analog signal seems to be a good solution. But I'm not sure. Because this time the amplitude of the PWM signal must be stable(may be from a reference voltage). But this time switching noise will distort the analog signal. |
| Topic | Author | Date |
| precision duty cycle to analog signal conversion | 01/01/70 00:00 | |
| WHY? and how | 01/01/70 00:00 | |
| 16 bits resolution | 01/01/70 00:00 | |
| Uncertainty | 01/01/70 00:00 | |
| uncertanity | 01/01/70 00:00 | |
| PWM | 01/01/70 00:00 | |
| it's an AWFUL solution | 01/01/70 00:00 | |
| Or stick with the F352... | 01/01/70 00:00 | |
| Is "F352" a 4-letter word... | 01/01/70 00:00 | |
| well, if you want to look like me ... | 01/01/70 00:00 | |
| Really? | 01/01/70 00:00 | |
What sensor? | 01/01/70 00:00 | |
| Resolution does not help you here. | 01/01/70 00:00 | |
| Analog signal is proportional | 01/01/70 00:00 | |
| you are right | 01/01/70 00:00 | |
| Simple answer | 01/01/70 00:00 | |
| true rms convertor | 01/01/70 00:00 | |
| Why RMS | 01/01/70 00:00 | |
| why rms | 01/01/70 00:00 | |
| RMS detectors suffer from high crest factors,... | 01/01/70 00:00 | |
| Why, oh why | 01/01/70 00:00 |