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I'm trying to interpret the output from the Derivative x(t).vi and want to make sure I'm doing so appropriately. The default value for the "dt" input is 1.0. I have force plate data that are sampled at 1200Hz. I interpret this to mean that the value of 1.0 for "dt" represents a real time interval of 0.833ms [(1200pts/1s) x (1s/1000ms) = 0.833ms/pt] and that the units of the derivative (i.e. loading rate = change in force/unit time) will be in N/0.833 ms. I would then need to convert this to N/s by multiplying by 1000ms/1s.
can anyone confirm (or deny!) this? Thanks for the help.