controling hp impedance analyzer using gpib & labview

[nis]

hallo

 

I'm beginner programmer in the labview environment, can u help me to control hp impedance analyzer by PC using labview & Gpib .. More details please

regards

[TiTou]

Hi,

Could give a little bit more informations such as LabVIEW version, Impedence meter reference and what kind of measurment you need to perform.

Many drivers exist for various hp equipment, maybe you can jub download some VIs from NI website... 😉

[nis]

hi TiTou

labview version is 7

hp impedance analyzer 4192A ( low frequancy impedance analyzer )

the requiread measuread paramteres are

electrical impedance ( magnitude - phase ) over the frequency band

reactance ( capacitance - inductance ) over the frequency band as well as the quality factor .

[LoganS]

I would recommend that you first start with one of the instrument drivers HERE. Once you have installed the driver, check to see if it has any example code that you can use.

Logan S.

[YENY]

Hi,

I am new with Labview, and have been shooting in the dark to make a simple Labview program. I am wondering if any of you can help me started?

I need to use Labview to retrieve impedance data from HP 4192A. I downleaded the library, and still have some questions. In the instructions,  I need to download VISA 3.0. I google it, but I couldn't find anything. Can any of you tell me what is it?

Also, I have a GPIB connection. I tried to do a simple program that change the OSC level in the instrument, but when I run it, the OSC level didn't change. Could anyone help me with this?

Thank you so much in advance

Yeny

[Dennis_Knutson]

VISA ships with LabVIEW. It will be on your drivers CD along with NI-GPIB. If you did a full install, you may already have VISA. Open MAX (Measurement & Automation Explorer) and expand the software listing. You can also download any version you want from here. Version 4.0 is the latest and I would recomend you download that. VISA is an API that you use for the amjority of instrument communication. It works with serial, GPIB, Ethernet, USB, VXI, PXI instruments. Instead of using a different low level driver for each, you only have to learn and use one. This makes drivers more portable as there are few changes you have to make to the driver to work with any of them. There could be any number of reasons why your program doesn't work. You could have the wrong address or could be writing the command incorrectly. My suggestion wuld be to install VISA and try the driver. If you have problem using the driver, post back with any error codes that might be generated.

I just looked at the 7.x version of the driver. It doesn't use VISA so you should be able to use the driver as is. Just make sure the address matches what your instrument is set to.

Message Edited by Dennis Knutson on 12-11-2006 08:36 AM

[Thanasis Kakalis]

Hello everybody!! I downloaded the labview drivers/libraries for HP 4192A impedance analyzer for Labview 7.0 and 8.0 and what i'm trying to do is the retrieval of Re(Y), Im(Y) and Frequency (Y->admittance) within stable and predefined time intervals. The HP4192 A has three displays: A (Re(Y)), B(Im(Y)) and C (Frequency). In the vi called <HP4192A Measure.vi> in the sequence 0 [0..5] there is a function value called F0 which enables data from Displays A and B to be viewed and (possibly) recorded from Labview. If I switch this function value from F0 to F1 (F1 stands for showing Displays A/B/C on GPIB according to the HP 4192A operation manual) what alterations must i do to the rest of the program (<HP4192A Measure.vi>) (in each sequence and especially in sequence 5 [0..5]) in order for the software to "see" the display C as well? Many thanks in advance for any held provided!!! 🙂

Message Edited by Thanasis Kakalis on 11-26-2008 07:13 AM