pci 6259 real time windows target matlab

[Naser1363]

Hello everyone,

I want to buy 1 NI PCI-6259, 2 Cables(SHC68-68-EPM Cable (2m))  and 2
Connector Blocks (SCB-68 - Shielded).
Would you please tell me do I need another hardwarefor
this product?
I want to this product with Matlab Real Time Windows Target.
Would you please tell me do I need what software for
this product to work with Matlab Real Time Windows Target?


Best regards,

Naser

[OliviaC]

Hi Naser,

What do you want to use the 6259 for? In other words, what do you want to measure or what are generating a signal for?

In general, you probably won't need any other peices of hardware.

To be able to communicate with the 6259 you'll need the DAQmx driver, which should come with the card. Are you using a real time OS for your application? 

[Naser1363]

Hello Olivia

I want to measure impedance of a device.

I want to generate a chirp signal and measure impedance this device by NI PCI 6259.

My frequency is about 10KHZ to 300KH.

I use Windows xp for this task. I want to use Matlab software.

So, for MAtlab software only DAQmx driver is needed?

Best regards

Naser

[Brandon_B]

Hello Naser,

So this is a third party device that you would like to measure the impedance of?  If so, you won't be able to do it with the 6259.  In order to perform some impedance analysis you will need to perform a frequency sweep using one of our FGEN products and then analyze the raw signal vs. the signal through your device with one of our scopes.  Take a look at ths article titled Impedance/Bode Analyzer and let me know if this sounds like what you are trying to do.  If so, we can work on finding the right hardware for you.

Regards,

Message Edited by B.E.Z. on 11-06-2009 09:57 AM

[Naser1363]

Hello Brandon

 

I think I can use 6259 for impedance measurement.

1- Use a sine wave generator by D/A that will cover the frequencies required.

2-  Place a fixed resistor, start with 10K, in series with device.

3.) Connect other end of device to ground.

4.) Connect generator between fixed resistor and ground.

5.) Connect an A/D between junction of fixed resistor, device and ground.

 
And the impedance can be calculated with FFT analysis.

 
Best regrads

[Brandon_B]

This sounds like it could work, and there are examples on how to perform a frequency sweep with M-series devices.

Regards,