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AC-Measurement with U12

u12 ac

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#1 bramfelderlabjack

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Posted 29 May 2014 - 02:28 AM

Hello, I am new in this forum. My problem is: I want to measure AC-signals (sinus) from5 Hz to 1100 Hz. Signal < 5V, interval time about 5 seconds.

The values should be saved in excel or txt or in Profilabexpert Vers. 3

Many regards


#2 LabJack Support

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Posted 29 May 2014 - 09:08 AM

First consider how many samples you want per cycle.  Perhaps you decide that you need at least 20 samples/cycle so you have a decent view of what the waveform looks like.  1100*20 = 22000 samples/second, so the U12 is too slow:




You need any of our other devices:




A quick way to collect data with the U12 at the fastest rates is with LJstream or LJscope:



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