| Steve M. Taylor 12/06/04 11:14 Read: 575 times Manchester Uk |
#82628 - Still missed it then ? Responding to: Prahlad J. Purohit'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. | Prahlad J. Purohit | 12/06/04 09:34 |
| echo | Steve M. Taylor | 12/06/04 10:35 |
| re: Echo | Prahlad J. Purohit | 12/06/04 11:05 |
| Still missed it then ? | Steve M. Taylor | 12/06/04 11:14 |
| I guess, standard practice for interchg | Erik Malund | 12/06/04 11:29 |
| Re: seeprom storing caliberation. | Prahlad J. Purohit | 12/06/04 11:43 |
| But I want something simpler. | Prahlad J. Purohit | 12/06/04 11:41 |
| stability | Erik Malund | 12/06/04 11:52 |
| 1-Wire = 3 Pins?! | Andy Neil | 12/06/04 17:43 |
| Calibration is unavoidable. | Steve M. Taylor | 12/06/04 16:36 |
| Calibetaion through POT. | Prahlad J. Purohit | 12/06/04 20:28 |
| error budget. | Steve M. Taylor | 12/07/04 04:47 |
| exceeding error budget | Erik Malund | 12/07/04 07:21 |
| OP07 amplifier | Prahlad J. Purohit | 12/09/04 08:01 |
| Re: Error Budget | Prahlad J. Purohit | 12/09/04 08:08 |
CT versus Rogowski coil  | Kai Klaas | 12/07/04 21:54 |
| Re: CT vs Rogowski Coil | Prahlad J. Purohit | 12/09/04 08:05 |
Solving in the frequency domain | Kai Klaas | 12/09/04 22:25 |