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Search found 4 matches

by dbellisario
May 21st, 2015, 11:02 am
Forum: Current Sources
Topic: Smoothing a 6221 sweep
Replies: 5
Views: 22531

Re: Smoothing a 6221 sweep

I am having the same problem - a sensitive device, on top of significant voltage overshoot in a differential conductance measurement. Any success story?
by dbellisario
May 18th, 2015, 12:25 pm
Forum: Current Sources
Topic: Delta Mode destroying devices (ESD?)
Replies: 1
Views: 11258

Delta Mode destroying devices (ESD?)

Hi there. I'm using the 6221-2182 setup to make differential conductance measurements. With resistors, it is working fine, but our devices are very sensitive to static discharge and something in the delta mode setup appears to be destroying them. I know it is the delta-mode setup because the nV mete...
by dbellisario
December 17th, 2014, 2:31 pm
Forum: Current Sources
Topic: Square wave triggering with 6221 and 2182A
Replies: 1
Views: 10734

Square wave triggering with 6221 and 2182A

I am trying to have the 6221 provide a continuous square wave for a period of time while the 2182A measures the voltage at the high and low currents. I use SCSI control (GPIB interface). Does anyone have a white paper or series of commands that is relevant for this? Working on it so far it seems lik...
by dbellisario
December 16th, 2014, 2:50 pm
Forum: Current Sources
Topic: Differential Conductance Measurement with Constant Current
Replies: 1
Views: 10648

Differential Conductance Measurement with Constant Current

Hi All, I have the 6221/2182 delta mode setup, and am interested in measuring the differential conductance at a *fixed* current. In other words, I'd like to measure dI/dV repetitively in rapid fashion for a period of time (e.g. 100 seconds). The measurement is essentailly the same process as the 'De...

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