I have just moved onto using both channels on my Pico ADC-200/100 and am rather confused. I set the time step at 10 micro seconds (or more precisely 10.24) and sought a fast block single set record of 32k samples. I anticipated that the resultant record would show a time step of 10 micro seconds and display only 16k samples on each channel. Whilst I am delighted to report that I got 32k samples from each channel, I am a little surprised that the time step doubled to 20 micro seconds. Is this correct or did I miss set something?
Also when using both channels, when does the device take a reading on each channel and is it at the same time? (It occurred to me that the doubling aspect may have resulted because say Channel A takes a reading at say 10 micro seconds and then Channel B at 20 micro seconds and then Channel A at 30 and so on, but reports them as both being taken at 20, 40 and so on micro seconds.) We am trying to compare the dynamic forces at both ends of a piece of rope and whilst we do see a difference in the data, some one has challenged us that part of the difference is due to the device not sampling both channels at the same time hence building in a delay.