Tektronix TDS 500C User Manual

Appendix B: Algorithms

TDS 500C, TDS 600B, & TDS 700C User Manual

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 

 =  – 

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  .

= 

ŕ

()dt

(  *  )   

For details of the integration algorithm, see page B–15.

The true Root Mean Square voltage over one cycle.

If 

 =   then   =  .

Otherwise,

 = 

ŕ

( ())

2

dt

(  *  )   

Ǹ

For details of the integration algorithm, see page B–15.