Making pulsed DC measurement

superbrew said:

Hello, I am having trouble making a pulsed DC measurement using a 34401A DMM. The unit that we are trying to measure generates a 350uS pulse of approximately 950mV at a rate determined by the trigger input, which we are using a simple pulse generator for. We can measure the pulse amplitude on the scope, but we need something more accurate. We set the meter to trigger externally and connected the signal that we are using to trigger the unit under test. The problem is that the meter triggers on the negative edge of the trigger pulse and the UUT requires that the trigger pulse be longer than 350uS, so it is not measuring the pulse amplitude. We can't find anywhere in the manual where it gives a setup for this situation, other than a short section on external triggering. We also have a 3458A available. Thank you for any help.

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superbrew said:

Thanks for the suggestion Rolf. We would like to be able to do this with a minimum amount of equipment, though. Also, some of our test points are < 100mV, so setting the power supply at those points can be tricky.

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