LabVIEW program for HP 4194A Impedance/Gain-Phase analyzer

[Simran_K]

Hello,

Unfortunately, that functionality is not currently available. Maybe you can try another analyzer.

Regards,

[jdownarzap2]

That´s a 40k investment ... can´t do it

By the way how people (back then) got these frequencies (for log scale)?

thanks

[Brian_Beal]

The log and linear scales affect the display only.  Scanned frequencies do not change.

[jdownarzap2]

Sorry, I misled you ... (forget about scale)...it´s about logarythmic SCAN frequencie I am after...

thanks

[RTom]

Hi Brian,

I downloaded your example for the 4194A.  It works great right off the start. I was wondering if I could somehow extract phase info as well (or if you had another example .vi), over the same range of frequencies, and save it in a table.  I eventually want to build my own, but I currently need to get some data off it in a short period of time.

[Brian_Beal]

The first sweep is for impedance and phase.  Impedance is the "A" array data, phase is the "B" array data.  All you have to is grab the B array data.  Either right before or right after this program gets the A array(WRITE "A?" then READ), do the same thing for B(WRITE "B?" then READ).

[trt-user]

Hi everybody,

New user of LabVIEW, I am working with LabVIEW 6.1. I have been looking for drivers to use the HP 4194A Impedance Gain-Phase Analyzer, but I have only found drivers for the versions 7.0 and 8.0 of LabVIEW. Couldyou help me finding the drivers for LabVIEW 6.1 (at least 6.0) for the HP 4194A analyzer ?

Thank you in advance for your help.

Frédéric. 

[jjp377]

Hello,

You can send an email to instrument.drivers@ni.com to see if a previous version of this driver is available.

[trt-user]

Thank you for the e-mail adress. I have just done it. I hope a previous version of the drivers still exists.

[Baturin]

Wow, thanks a lot!

I have been reading a manual and tying to figure out how to read whole array at once for half a day :). And overlooked this point in the manual...

It is just as simple as possible: "A?" and that's it

FYI the oficial driver on idnet lacks the most needed functionaly of getting the results from instrument. It is strange situation. (Or I am so stupid that I have missed it 🙂 ). In the example the functions to set cursors and read their value are used to read one sample (averaged, I think). Nothing said about array reading. I was ready to read data point by point in a loop moving a cursor :(.

Thanks again!