1 - the integral time increment is defined by the sampling rate. This is defined in the Time Base dialog.
The integral time is continuous or block-based. You define the block size in the Time Base dialog. You can reset the integral based on data or program events using a control input to the Integral module.
2 - Set up the analog input to collect data at the desired rate. 1000 s/sec will have a 1 ms time increment for the integral. The 1 ms is multiplied by the amplitude, and added to the previous sum. Note that the integral is relative to the zero y-axis - the area under the curve extends down to the zero or up to the zero. Values below zero will yield a negative value, which will be subtracted from the sum. You may need to use Absolute V
alue to address this.
3 - We think that it is very easy to set this up in DASYLab. You have asked a number of questions about the specific integral function - yet you have not described how you need to use it. For example, computing the integral in the frequency domain is done directly in the FFT module!
If you need an evaluation version of the DASYLab software, feel free to contact me directly at support@dasylab.net !
Measurement Computing (MCC) has free technical support. Visit
www.mccdaq.com and click on the "Support" tab for all support options, including DASYLab.