| ??? 12/06/04 17:14 Read: times |
#82628 - Still missed it then ? Responding to: ???'s previous message |
But I am still using the same unipolar 8bit ADC PCF8591 and the precision full wave rectifier. Like I said, you could do all that in software too, just a question of offsetting your zero. Now the only problem is these coils are not interchangeable The recitifier scaling pot need to be adjusted every time a diffrent coil is used. Use a Dallas one-wire serial memory on another three of pins in your cable from the Rogowski - read the calibration constants from the memory when you boot up. Steve |
| Topic | Author | Date |
| Rogowski Coil Interchangeability. | 01/01/70 00:00 | |
| echo | 01/01/70 00:00 | |
| re: Echo | 01/01/70 00:00 | |
| Still missed it then ? | 01/01/70 00:00 | |
| I guess, standard practice for interchg | 01/01/70 00:00 | |
| Re: seeprom storing caliberation. | 01/01/70 00:00 | |
| But I want something simpler. | 01/01/70 00:00 | |
| stability | 01/01/70 00:00 | |
| 1-Wire = 3 Pins?! | 01/01/70 00:00 | |
| Calibration is unavoidable. | 01/01/70 00:00 | |
| Calibetaion through POT. | 01/01/70 00:00 | |
| error budget. | 01/01/70 00:00 | |
| exceeding error budget | 01/01/70 00:00 | |
| OP07 amplifier | 01/01/70 00:00 | |
| Re: Error Budget | 01/01/70 00:00 | |
| CT versus Rogowski coil | 01/01/70 00:00 | |
| Re: CT vs Rogowski Coil | 01/01/70 00:00 | |
Solving in the frequency domain | 01/01/70 00:00 |