Tektronix TDS 520A User Manual

Appendix B: Algorithms
TDS 620A, 640A, & 644A User Manual
AĆ13
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 StartCycle
= EndCycle then return the (interpolated) value at StartCycle .
CycleMean =
ŕ
EndCycle
StartCycle
Waveform ( t )dt
For details of the integration algorithm, see page A-19.
Burst Width
Timing measurement. The duration of a burst.
1. Find MCross1 on the waveform. This is MCrossStart .
2. Find the last MCross (begin the search at EndCycle and search toward
StartCycle ). This is MCrossStop . This could be a different value from
MCross1 .
3. Compute BurstWidth = MCrossStop
– MCrossStart
Cycle Mean
Amplitude (voltage) measurement. The mean over one waveform cycle. For
non-cyclical data, you might prefer to use the Mean measurement.
If StartCycle
= EndCycle then return the (interpolated) value at StartCycle .
CycleMean =
ŕ
EndCycle
StartCycle
Waveform ( t )dt
( EndCycle * StartCycle ) SampleInterval
For details of the integration algorithm, see page A-19.
Cycle RMS
The true Root Mean Square voltage over one cycle.
If StartCycle
= EndCycle then CycleRMS = Waveform[Start] .
Otherwise,
CycleRMS =
ŕ
EndCycle
StartCycle
( Waveform ( t ))
2
dt
( EndCycle * StartCyc le ) SampleInterval
Ǹ

Tektronix TDS 520A Specifications

General

Brand	Tektronix
Model	TDS 520A
Category	Test Equipment
Language	English