Labview and Agilent frequency counter 53132A

[faheemkhan]

Dear all

I am using Agilent frequency counter to monitor frequency of my devices. I use Labview and GPIB to record my data and for that I use a driver downloaded from this link

http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=2E6A1728B3993570E0440003BA7CCD...

I use "Agilent 5313X Series Acquire Auto Armed Frequency Measurement.vi" . I modified this file by putting a while loop to

make continuous measuements. I have attached my "frequency_counter_53132.vi" file for clarity.

Now problem is that I get the frequency data after every 0.5 seconds while I want to make it faster. I am not expert at Labview but I think Labview driver is using "Fetch" command to record data. Can somebody suggest me some solution to make my measurements faster.

Can I save data in the device itself and fetch that after every 2 or 3 seconds. This would make the measurements faster but how to do this?

Thanks in advanced

[JÞB]

A lot of the speed is going to be driven by the resolution of the frequency measurement.  For instance: if you have a 10Khz sample and you set the resolution to 0.1 hz the measurement must take at least 10 seconds to complete (1/0.1)  It looks like, from your example, that you are using the autorange function and the graph is centrered @30KHz so, 100,000 hz range at 5.5 digits would be 5Hz resolution and take 1/2 sec.  The same measurement a 4.5 digis would complete in 50mSec.

[faheemkhan]

Hello there

Thanks alot for reply.

Sorry I did not understand your reply fully. Where can I reduce frequency resolution. As I am not expert in Labview and I just modified the old Labview program. So where can I set resolution to like 1Hz so that I can take more than 2 measurements in a second.

Thanks again

[Kristoffer_I.]

Hi faheemkhan,

Is still an issue for you?

Because this device is from a 3rd party, you must contact the producer of the device with this type of question.

[faheemkhan]

Hi Kristoffer

I managed to solve the issue. Actualyl in the default program, which I donwloaded from NI website, there was some unnecessary commands which were making whole devices slowe. So now I just use Fetch Measurement.vi and put the device on Auto Arming and this makes the device at maximum speed.

Thanks 

Faheem

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