10-21-2016 04:55 AM
I am going to do some impedance measurements and need a device to generate a 64kHz low current(0,1mA) signal, and to pick up 2 differential voltages. Is there any multifunction DAQ devices that outputs a constant current or can i use a device with a voltage output and use a voltage to current converter?
Adam
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10-22-2016 11:19 AM
I'm not aware of a metrologic current source for 100µA @ 64kHz ..
I would try this:
Why not just apply a AC voltage and measure current and voltage(s) ?
Another way to apply a 100µA rectangular waveform: Place a REF200 (2 100µA references) in a diode bridge and apply a 64kHz squarewave 🙂
10-25-2016 07:43 AM
And can you tell me which suggestion you choosed?