[ayeckley]

Ah - so the output units for "rate" are actually inches/sec (or meters per second, or lightyears per femtosecond, etc.) rather than Hz. Thanks for the clarification.

Could I suggest that perhaps next year this VI and the associated help file refer to this output as "velocity" rather than "rate"? I think it would prevent future confusion (I realize it's probably a request that should be directed to WPI rather than NI). Thanks...