USB 6008 DAQ Scaling

[Donners]

Hi,

I'm using a USB 6008 to read analogue voltage signals from a device I built. The task is set up with single ended reading with a range of + -10 volts. There is no scaling in the task or the block diagram but when I acquire the data to a TDMS file and view it, I get a load of PieceWisePolynomial scaling properties. I've attached the TDMS viewer to this post.

Does anybody know where this comes from because I can't explain it.

Thank you,

[snowpunter · Accepted solution]

The data is coming back as an unsigned integer between 0 and 32k from the ADC on the 6008.

The scale is converting that unsigned int to a floating point value between -10 and 10.

[Donners]

Thank you Snowpunter

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