Eagletree graphs may not be accurate

[nieles]

just did the test with an ~1 ohm resistor an an 5s pack
recorder: 1A
meter 2A

it reads ~30A and without the calibrate thing it shows ~15A

test 2 to make sure my test1 was right

recorder: 10A
meter 13.3A

and it reads 20A

[J57ltr]

Brian are you seeing this through the run, or just from a standing start? I could see this through a run because I think system reactance would come in to play at differing loads and RPM's. As you know with audio, Impedance changes with frequency. As far as the spikes could that be from the pulse from the non charged coil?

The other thing is that these things are slow (only 10 Hz) they are a great tool, but for really measuring and looking at data it's like having a high speed camera @ 1000fps versus a home video camera @ 30fps. I really like mine, but it's going to be subjuct to errors just like everything else, and at only 10Hz sample rate I think it can "grab" data at slightly different times and give you less accurate readings, especially as through as you are looking at the data. This wasn't a controlled bench test so I think that more dynamic factors can happen here.

Jeff