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5 - 22 FUNCTION REFERENCE
CURSORS READOUT
Description:
The cursors offer a wide variety of voltage and time readouts. For comparison of
signal details the ratio mode is very suitable. When in analog mode time or volt
cursors have been selected, only the relevant readouts are displayed in the
READOUT menu. In digital mode all readouts are displayed at the same time.
The various readout selections for time, volt and ’both’ are reached via the key
sequence ’CURSORS >> READOUT’.
CURSORS READOUT TIME
Three time interval readouts can be selected:
- ∆T: Gives the time between the cursors.
-1/∆T: This results is a frequency readout. The readout is correct when the
distance between the cursors equals one signal period.
- ∆T-ratio: The readout is a percentage
that can be reset by using the
’∆T=100 %’ softkey. This mode can be
used for time comparisons. The figure
shows an example of a duty cycle
measurement. First the cursors are
positioned at the period and the readout
is set to 100%. Then the pulse width is
measured.
- Phase (ph): The readout is a number of
degrees that can be reset using the
’∆T=360 °’ softkey.
- T-trg (time to trigger): The readout gives
the time between the trigger point and
each time cursors.
TRACK
∆
ch ... :∆V=100%
∆
ch ... :∆T=25%
-POSITION CURSORS
ON 1 SIGNAL PERIOD
-PRESS ∆T=100%
-POSITION ∆ CURSOR
ON NEGATIVE SLOPE
OF PULSE
MAT4210