rie88

QUOTE (Antoine Châlons @ Mar 19 2009, 02:54 PM)

Hi,

Well.. as you question is quite general its not easy to give a good answer.

Maybe before choosing a file format you should try to estimate the amount of data you have to save during the 6 month.

What are you measuring? How many channels do you have? What's the acquisition rate?

Do you really need to generate a file? How about saving to a database? Do you need to be able to read the "old" data and keep writing data at the same time ?

You'll probably have to make some trade off, describe your application so that people here can give you useful answers.

I'm sorry, it takes a long time before I can post again.

here i will explain about my project.

I need to do continious measuring for six month. I use DAQpad 6020e. Of course i have 16 channels, and I want to use them all.

For the acquisition rate is about 100kS/s.

Actually I want to get the waveform data, and then save it into file. I want to be able to read the old data again if there is a problem occur. So it will be large amount of data in drive. what should i do to manage the data??

thanks.........

what is the smallest file format in size??????

cause i have to do continious measurement for six month.