RIGOL Chapter 6 MATH and Measurement
6-26 MSO1000Z/DS1000Z User’s Guide
Time Parameters
Figure 6-3 Time Parameters
1. Period: defined as the time between the middle threshold points of two
consecutive, like-polarity edges.
2. Freq: defined as the reciprocal of period.
3. Rise Time: the time for the signal amplitude to rise from the threshold lower
limit to the threshold upper limit.
4. Fall Time: the time for the signal amplitude to fall from the threshold upper
limit to the threshold lower limit.
5. +Width: the time difference between the threshold middle value of a rising
edge and the threshold middle value of the next falling edge of the pulse.
6. -Width: the time difference between the threshold middle value of a falling
edge and the threshold middle value of the next rising edge of the pulse.
7. +Duty: the ratio of the positive pulse width to the period.
8. -Duty: the ratio of the negative pulse width to the period.
9. tVmax: the time corresponding to the waveform maximum value (Vmax).
10. tVmin: the time corresponding to the waveform minimum value (Vmin).
Note: The default values of the threshold upper limit, threshold middle value and
threshold lower limit are 90%, 50% and 10% respectively. You can set them via
Measure ïƒ Setting ïƒ Type ïƒ "Threshold" and for the setting method, please
refer to the introduction in "Threshold Measurement Setting".
Rise Time
Threshold
Upper Limit
Middle Value
Threshold
Lower Limit
Period
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