what can create channel

[bang123]

current sensor -- output: voltage --> ni(currentChannel? or voltageChannel?) -->????

[pincpanter]

You forgot to add a few words explaining what hardware/software you are using or want to use. Not all people love riddles.

What I understand is the following: you have a sensor that measures electrical current; the sensor output is in voltage. Right? Then your measurement channel must be voltage. Then, rescale to current according to the sensor calibration data.