05-21-2014 10:52 PM
Hello guys,
I am very new to labview, my boss wants me to get data from Agilent E4416A power meter.
I downloaded the driver and found that it can only get one data once. In order to get continuous data I tried a while loop.
But the problem is, after I modified this, the program can give results at about 8data/second, but the power meter works at the frequency of 1MHz, I'm really upset cause 8 data/second is far from enough.
So my view on this problem is that it may be because of the VIs from the library that slows the while loop down,it takes about 128ms to complete one cycle, but it's really complicated for me and I cannot tell which VI determines the sampling frequency.
I tried to use pipelining architecture to make it faster but it doesn't work.
Can anyone give me some advices or anyone has used E441X power meter before?
05-22-2014 12:39 AM
That is the maximum data rate you can receive using the Serial communication and VISA Layer.
Check if the instruments support logging the waveform locally and then transferring them altogether through serial communication.
Otherwise it may not be possible.
05-22-2014 12:50 AM
Thx a lot man, these two days I've been working on this. I'm gonna deal with a Bluetooth signal, I gonna ask my boss whether this power meter can or not.