Agilent U2531A USB Simultaneous Sampling DAQ in Power Measurement Unit Monitoring Application Note
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In this application, the program is written in Agilent VEE Pro to control the DAQ devices in acquiring the voltage and current as shown in Figure 3. Figure 3. Windows shown is the VEE test program. The functionality of the PMU is controlled by its firmware. In this particular application, the VEE program is used to control the DAQ devices with regard to the monitoring of the different channels. In addition, a separate routine is written to run through the functionality of the PMU.
The duration of the spike is 0.3 ms. In fact, with the 2 MSa/s sampling rate DAQ, and the recommendation that the sampling rate employed by the DAQ (or the test system) should be five times the sampling rate of the signal, the maximum glitch that can be detected is 2.5 us. In this application, the absolute voltage is actually not as important since the main purpose of the application is to monitor the presence of spikes.
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