Appendix B: Algorithms
TDS 620A, 640A, & 644A User Manual
For details of the integration algorithm, see page A-19.
Cycle Area
Amplitude (voltage) measurement. The area over one waveform cycle. For
non-cyclical data, you might prefer to use the Area measurement.
If
=
then return the (interpolated) value at
.
=
For details of the integration algorithm, see page A-19.
Burst Width
Timing measurement. The duration of a burst.
1. Find on the waveform. This is .
2. Find the last (begin the search at and search toward
). This is . This could be a different value from
.
3. Compute =
Cycle Mean
Amplitude (voltage) measurement. The mean over one waveform cycle. For
non-cyclical data, you might prefer to use the Mean measurement.
If
=
then return the (interpolated) value at
.
=
For details of the integration algorithm, see page A-19.
Cycle RMS
The true Root Mean Square voltage over one cycle.
If
=
then = .
Otherwise,
=