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Excel Data Size Calculator

I would like to record sampled analog data at 120 hertz: @NI: is there an Excel spreadsheet out there would estimate the amount of memory needed to record data for hours? I understand that there are different recording formats, it would be nice if there calculation were available for each format.

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Hi gatorback,

 

I'm not aware of a spreadsheet calculator available for this purpose, but the calculation should be pretty straightforward.  Keep in mind that the overhead may be different depending on the file type and how often you write data to the file.  It should be something similar to the following.

 

Estimated file size (bytes) = Number of channels * bytes per sample * samples per second * number of seconds + overhead

 

I'd also recommend testing this with an actual application where you compare the estimated file size to the actual size.  

 

Hope this helps,

Dave C.

Applications Engineer
National Instruments
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