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by mwally
March 10th, 2019, 1:46 pm
Forum: Low Voltage Measurements
Topic: Ground loop between 6221 and 2182a
Replies: 1
Views: 631

Ground loop between 6221 and 2182a

Hi all, I am trying to make a 4-point contact resistance measurement on a nanowire using the 6221 current source and the nanovoltmeter 2182a. I contact first the current source without any problem - the device blinks when the contact tips are in the air and as soon as they land on the sample it stop...

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