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Accurate Low Amp Current Probe Advice
Martin72:
Short clip about initial conditions and degaussing the probe.
Martin72:
Various loading situations with the electrical DC load.
You can clearly see the influence of the load's ripple, which naturally decreases as the current increases.
Martin72:
I had already done current measurements with normal resistances:
https://www.eevblog.com/forum/testgear/accurate-low-amp-current-probe-advice/msg5692771/#msg5692771
I'll have to revive my SDL1000X thread soon... ;)
Martin72:
These are the transmission ratios that you have to set in the channel setup under user defined probe to get correct measurement results.
The only disadvantage is that you have to set them for each current range, but you don't change that often and you have two user probes that can be set.
tautech:
--- Quote from: Martin72 on November 03, 2024, 08:53:15 pm ---These are the transmission ratios that you have to set in the channel setup under user defined probe to get correct measurement results.
The only disadvantage is that you have to set them for each current range, but you don't change that often and you have two user probes that can be set.
--- End quote ---
Yep, active current probe terminations are a PITA whereas a passive termination is set and forget.
Once you go down the DC capable current probe route things become somewhat more complex and harder to use compared to an current probe with plug and play scope support.
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