Hi:
I measured a 100ohm resistor in differential mode. I got 3.4mV. Then I measured the voltage across bias resistor 10kohm. I got 1.4mV (varied from 0.9mV to 1.4V) and then I measured the voltage across another bias resistor 19.72kohm. I got 2.4mV ( voltage varied from 1.8mV to 2.4mV). I would like to ask from my perspective. I saw the source is 3.4mV which is less than 2.4mV add up 1.4mV. Is this acceptable. Nomally, the complete circuit should be the source voltage greater than the adding up voltage. Or you might need to take one of the value in the range from 0.9mV to 1.4mV) and 1.8mV to 2.4mV, then add up equal to 3.4mV. Could you please tell me your perspective.
The second question is why adding BNC cable from the test fixture to NI5112 board. the current will be -0.02micro amp and the the last one is 0.13 micro amp. I don't understand. Could you please explain?
I would appreicate your help if you can give me a quick reponse. I am in a very urgent.
