Configure Mask and Limit Testing

[FranzS]

Most modern hardware oscilloscopes offer a feature to do a limit test by defining a limit band from a reverence signal by applying a plus and minus offset in the X and Y direction to a reference signal.

With the “Configure Mask and Limit Testing” Express VI it is possible to use a constant for upper and lower limit or define a table to act as upper and lower limit.

With the new function “Def. from Ref.” you can create the table content from a reverence signal.

Mostly it is not enough to add a constant value to the reverence signal in the Y-Direction.

An extreme example is a square waveform.

By simply adding a constant value to the Y-Direction you got no tolerance on the rising and falling edges for time base jitter.

Such a function would be nice to see in a future version of the “Configure Mask and Limit Testing” Express VI.

[Darren]

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