What is NI 5132 Digitizer/ Oscilloscope

[Vipin_Saklani]

Sorry friends, It may be a stupid question, but I want to know what exactly is the function of this digitizer. It will be having an ADC inside but what I want to know whether it directly gives ADC samples outside (ADC data into PC) or some modified form of data (Voltage samples at different point of time). How it is better than other ADC boards available in the market? Why is it also called oscilloscope? How can it be more useful with LABVIEW? My application simply needs a Digitizer with a sampling rate of 50 MHz which directly gives ADC sample values outside. Sould I go for it? Sorry for posting so many querries.

[Denver_]

You can have a look at this link for more info on digitizers.

How LabVIEW will help - visit this link.

[Shreyas]

For the whole knowledgebank for dizitizers check this out.

In LabVIEW you use SCOPE VI's or Use the softpannel of NI-SCOPE to view the data from the digitizers.

Hope that helps!

[Vipin_Saklani]

Thanx for your responses friends.

But I want to know whether I will be getting ADC data out of the digitizer so that I could use that in different applications. What I guess that instead of ADC sample values it will give me voltage levels at different point of time. Lets say I want to acquire ADC data for some period and want to store it in a text file.

Can I do that. 

[dansch]

Hello 9966658175,

When you say that you want to get the ADC data, do you simply mean binary values as opposed to scaled voltages? If so, you can fetch the data from the digitizer such that you will be getting binary data. The same fetch function will return a gain and offset value, which can be used to scale the binary data to a voltage value (shown below).

Further information on the different instances of the niScope Fetch function can be found here in the online help. Once the binary data is fetched as an array, you can easily write this to a file by wiring it to a LabVIEW File I/O function. Hope this helps,

[dansch]

Also, I forgot to add a note that the binary data that will be fetched does not account for the ADC normalization and calibration data that is required to obtain proper, scaled voltage values. The gain and offset values returned in the wfm info do account for this and must be used to properly convert the binary values to voltage values.

Regards,