User`s guide

53220A/53230A User’s Guide 93

53220A/53230A Measurements 3

3. See Chapter 4 for information on input threshold levels and slope, and

Chapter 5 for advanced gating information.

Single-Channel Time Interval Measurement

The following example shows a single channel time interval measurement on a

signal with the characteristics shown in Figure 3-7.

Figure 3-7. Single Channel Time Interval Measurement.

//configure a time interval measurement on ch.1. Use

//defaults as set by CONFigure except for those set as

//shown

*RST // reset to start from known state

CONF:TINT (@1)

INP:COUP AC // set AC coupling

INP:IMP 50 // set input impedance to 50 ohm

INP:LEV1 1.0 // set start threshold to 1V

INP:LEV2 1.0 // set stop threshold to 1V

INP:SLOP1 POS // set start slope to positive (rising)

INP:SLOP2 NEG // set stop slope to negative (falling)

READ? // initiate counter and take reading

Notes

1. Input coupling and impedance are set to assure the intended start and stop

trigger thresholds as the thresholds are specified as absolute values. The mea-

surement starts on the positive (rising) edge on channel 1, and stops on the

negative (falling) edge.

Vp-p