BNC 1105 Universal Counter - Manual (Page 27)

27 27 27 27
3.5 Rise/Fall Time Measurement
Auto triggering is enabled by default for rise/fall time measurmenet, and
it automatically identifies the 10% and 90% points of the signal and sets
the trigger levels in accordance. One may manually disable the auto
triggering and override the automatic settings (refer to Ch.4.8).
To measure rise or fall time
1. Connect your signal source to channel 1.
2. Press TIME&PERIOD button.
3. Press the softkey under EDGE to select edge measurement function.
Press it again to toggle between rise and fall times.
4. Optional settings:
a. Use GATE&ExtArm button to set the gate time, resolution or arming
if it’s needed (refer to Ch.4.3).
b. Use Scale&Offset button to set the scaling and offset parameters if
it’s needed (refer to Ch.4.4).
c. Use Limit Modes button set the upper and lower limits if it’s needed
(refer to Ch.4.5).
d. Use Stats button to set up the statistics function and limit filtering if
it’s needed (refer to Ch.4.6).
e. Use the selections in the CH1 to set the input conditions and the trig
Sens.
f. Use Show Status button to check the conditions of Input, Volt, Stats
and Limit.
g. Use Save&Recall button to save your settings (i.e., changes made in
steps a-d) if it’s needed (refer to Ch.4.9).
5. Press RUN button to make continuous measuremets.
6. Press STOP/SINGLE button to make single measurement or to stop
continuous measurements.
Remote Interface Command
Use the following commands for making rise or fall time measurement:
[:SENSe]:FUNCtion[:ON] “[:][XNONe:]RISE:TIME [1]”
[:SENSe]:FUNCtion[:ON] “[:][XNONe:]RTIMe [1]”
[:SENSe]:FUNCtion[:ON] “[:][XNONe:]FALL:TIME [1]”