Period - HP 54501A Programming Reference Manual

PERiod
PERiod
command/query
The :MEASURE:PERIOD command places the instrument in the
continuous measurement mode and selects
the
Period measurement.
The
PERIOD
query measures and outputs the
period of
the first
complete cycle on screen.
The period
is
measured
at the
50% point when
Standard measurements are selected and
at
the mid threshold voltage
level
of
the waveform when User-Defined
measurements are selected.
The
algorithm for
this
measurement
is:
if
the
first edge
on screen
is
rising
then
period
=
(time at
second rising edge
-
time at first rising
edge)
else
period
=
(time at
second
falling
edge
-
time
at first falling
edge)
Command Syntax:
:MEASure:PERiod
Example: OUTPUT 707;°:MEAS:PERIOD"
Query Syntax:
:MEASure:PERiod?
Returned Format: [:MEASure:PERiod]
<valuexNL>
Where:
< value > ::
=
waveform
period
in seconds (exponential
-
NR3 format)
Example: DIM prd$[50]
OUTPUT 707;":MEASURE:PERIOD?"
ENTER 707;Prd$
PRINT Prd$
HP 54501A
Programming
Measure Subsystem
14-31