Measuring low current on myDAQ

[djdj]

The NI ELVISmx digital multimeter used with myDAQ only displays currents in the low milliamp range. Is there any way to measure lower currents (micoamp range)?

Thanks!

[mikeporter]

You could use something like a hall-effect current sensor to sense the current and measure the output of the sensor with the DAQ.
That's just one idea...
Mike...

[djdj]

Thanks for the idea, I guess I was wondering what the range and resolution of the built-in dmm is on the myDAQ, given that a $20 handheld dmm measures in the microamp range.  If the myDAQ can handle this precision, what software changes (i.e. in labview) need to be made to display it?

[Coq_Rouge]

I will guess so. You should study how current measurement is done.

http://focus.ti.com/analog/docs/microsite.tsp?sectionId=560&tabId=2180&micrositeId=7&familyId=57