Keysight 53210A, User Manual, Page: 92 / 247

3 53210A Measurements
92 Keysight 53210A User’s Guide
Using MEASure
Measurements using commands from the
MEASure
subsystem are made as the
command is executed, and are based on parameters specified within the syntax.
The results are sent to the instrument’s output buffer.
For example, the
MEASure
command:
MEAS:FREQ? 60.0, 1e-3, (@1)
takes a single measurement with five digit (1 mHz) resolution of an expected 60
Hz signal on channel 1. All other counter parameters (input configuration,
trigger sources, etc.), are set to values predefined for the given
MEASure
command, or remain unchanged from previously programmed values.
Because the measurement is taken immediately, changes to the counter
configuration are limited to the parameters within the command.
Using CONFigure
Measurements using commands from the
CONFigure
subsystem allow the use of
low-level commands to change counter parameters before the measurement is
taken. For example, assume the following configuration is required:
– frequency measurement
– external trigger - positive slope
– trigger count = 2
– sample count (readings per trigger) = 5
– gate time = 5 ms
The
MEASure:FREQuency?
command cannot be used since it immediately triggers
a measurement after setting the trigger source to ‘internal’, the trigger count to
‘1’, and the sample count to ‘1’. The gate time is set to 0.1 seconds.
Using
CONFigure
and the appropriate low-level commands, the configuration can
be changed before the measurement is initiated (the abbreviated form of the SCPI
commands are shown):