Keysight Technologies 86120B User Manual page 91

Table 2-6. The Different Forms of MEASure
Desired
Measurement Data
Power (W, dBm)
Frequency (Hz)
Wavelength (m)
Wavenumber (m )
–1
Coherence Length (m)
Measurement instructions give quick results
The easiest way to measure wavelength, frequency, power, or coherence length is to
use the MEASure command. The MEASure command is one of four measurement
instructions: MEASure, READ, FETCh, and CONFigure. The syntax for measure-
ment instructions is documented in
Each measurement instruction has an argument that controls the measurement
update rate. This is equivalent to using the NORMAL and FAST softkeys.
:MEASure command
MEASure configures the Keysight 86120B, captures new data, and queries the data
all in one step. For example, to measure the longest wavelength, send the following
command:
:MEASure:SCALar:POWer:WAVelength? MAX
Use this
MEASure Query
:MEASure:ARRay:POWer?
:MEASure:SCALar:POWer?
:MEASure:ARRay:POWer:FREQuency?
:MEASure:SCALar:POWer:FREQuency?
MEASure:ARRay:POWer:WAVelength?
MEASure:SCALar:POWer:WAVelength?
:MEASure:ARRay:POWer:WNUMber?
:MEASure:SCALar:POWer:WNUMber?
:MEASure:LENGth:COHerence?
Specifying SCALar places the display in the single wavelength format and returns a
single value to the computer. Specifying ARRay places the display in the List by
Power or List by WL modes; an array of data is returned to the computer.
"Measurement Instructions" on page
Display Format
List by Power
single wavelength mode
List by WL (frequency)
single wavelength mode
List by WL
single wavelength mode
List by WL
single wavelength mode
coherence length
Programming
Making Measurements
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