Need to measure analog pulses up to 80V

[Rafi2003]

I need your assistance in selecting  a multifunction card.

I need:

1) 5 analog inputs, to analyze pulses

          voltage up to 80 volts

          Frequency 1 - 20 Hz

          pulse width 500 usec

          pulses comes in groups of few pulses (3,4,5, pulses, then, silence, then another group...etc..)

2) 12 DIO

the task is to  measure pulses voltage and timing parameters.

Any help is greatly appreciated

Thanks

RK

[P.Sanders]

www.ni.com >Products & Services > Data Acquisition > you can narrow down your search on the left hand pane/view the spec page of a product of interest/price range preferrence.

- Ciao.

[Rafi2003]

Thanks,

The only problem I'm facing is the 80V input.  I can't find any device that can accept it..  Other than that, I can use the NI-6220.

Do you know of any method to bring down the voltage?

Resistor divider is not a good choice because there is a resistance load at the UUT output, and the divider may affect that resistance.

Any suggestions?

Thanks

RK

[GarPar]

Hi RK-

     Are you wanting to measure the frequency of this 80 V signal?  Your post is a little confusing - generally, pulses are digital signals (which you connect to a counter to measure pulse width and frequency).  It sounds like you have an 80 V analog signal that you want to measure.  In that case, 500 usec = 2000 Hz, which is absolutely achievable with any of our multifunctionDAQ cards (if you are just wanting to characterize the analog input waveform).  I would recommend looking at the PXIe-4300 for your high-voltage signals and then couple that with a PXI multifunctionDAQ card or digital input card for your other parameters.  Either way, it would be best to contact our sales department at 1-866-280-7645.  They will be able to understand your parameters and recommend a good setup for your application.  Thanks and have a great day!