| ??? 01/09/07 14:28 Read: times |
#130504 - Difference is offset. Not gain Responding to: ???'s previous message |
Difference is in the input offset and not the gain between the two ratiometric sensors.
While yes, I can compensate this in software. I cannot do so with an additional gain of, say 10. Based on my measurements with a precise DSP gaussmeter and trusty multimeters, I need additonal gain to "see" the magnet at the increased distance. Bruce |
| Topic | Author | Date |
| Analog Interface - Input Offset Clarification | 01/01/70 00:00 | |
| Instrumentation amps | 01/01/70 00:00 | |
| Interference and reference | 01/01/70 00:00 | |
| Absolute vs ratiometric | 01/01/70 00:00 | |
| Offset compensation | 01/01/70 00:00 | |
| Self-Zero'ing | 01/01/70 00:00 | |
| I would be wary of 24 bits of anything with an ADC | 01/01/70 00:00 | |
| Offset compensation | 01/01/70 00:00 | |
| ADuC | 01/01/70 00:00 | |
| Difference is offset. Not gain | 01/01/70 00:00 | |
| Another approach. | 01/01/70 00:00 | |
| Noted | 01/01/70 00:00 | |
| the ususal mistake | 01/01/70 00:00 | |
| A typical thread... | 01/01/70 00:00 | |
| To Kai | 01/01/70 00:00 | |
offset compensation | 01/01/70 00:00 |