Resistance measurement LCRmeter

[YannickDannel]

Hello,

I must do a testbench and I need some help to choose the materiel.

This benchtest must have 2 digital input, 1 voltage acquisition input and 1 resistance acquisition input.

The question is abut the resistance acquisition. This acquisition must be done with a frequency of 1khz injection and the resistance is greater than 1Mhom. I think take a LCR meter (NI 4072 or an other) but can I configure the frequency at 1kHz (I see in datasheet powerline frequency at 50 or 60Hz) ? And can I do an acquisition like an oscilloscope ?

Thank you

[Remi.D]

Hello YannickDannel,

With the PXI-4072 you can use a single tone exitation current signal and measuring the response (voltage level and phase shif).

Also you can use a multi tone (square wave, with harmonics), to determine the impedance that you want measure.

You can configure a 1KHz exitation.

You can use the PXI-4072 as a digitizer (oscilloscope) (up to 1.8Ms/S)

I invite you to read the information contained on the following links for more informations:

Manual

http://www.ni.com/pdf/manuals/371304g.pdf

Can the NI PXI-4072 FlexDMM & LCR Meter Perform Impedance Measurements?

http://digital.ni.com/public.nsf/allkb/9DADFD5D9B271912862571F6007A8ECC?OpenDocument

Best Regards,