Example 5. Maximum And Minimum Values Over Time - HP 86140A Series User Manual

Description
Program

Example 5. Maximum and minimum values over time

This program locates the largest signal using automeasure, and adjusts the
center wavelength, span, and sensitivity settings. Trace B is then viewed and
updated and set to maximum hold. Trace C is then viewed, updated, and set to
minimum hold. Signal variations with time can now be monitored.
PRINT "OSA Min/Max Hold Example"
OUTPUT 723;"disp:wind:text:data 'OSA Min/Max Hold Example'"
!
PRINT
OUTPUT 723;"*rst"
PRINT "Presetting the instrument"
!
PRINT
OUTPUT 723;"disp:wind:trac:all:scal:auto"
PRINT "Performing Automeasure"
!
PRINT
OUTPUT 723;"cal:alig:mark1"
PRINT "Performing Autoalign"
!
PRINT
! Next line is the operation complete query used so that the text is not printed
! until after the Autoalign is complete
OUTPUT 723;"*opc?"
ENTER 723;Dum
PRINT "... measurement begins"
!
! Set up and display the signal
!
OUTPUT 723;"sens:wav:cent 1315nm"
OUTPUT 723;"sens:wav:span 20nm"
OUTPUT 723;"sens:pow:dc:rang:low -65dBm"
!
! Update and view trace B and set it to max hold
!
OUTPUT 723;"disp:wind:trac:stat trB, on"
OUTPUT 723;"trac:feed:cont trB, Alw"
OUTPUT 723;"calc2:max:stat on"
!
! Update and view trace C and set it to min hold
!
OUTPUT 723;"disp:wind:trac:stat trC, on"
OUTPUT 723;"trac:feed:cont trC, Alw"
OUTPUT 723;"calc3:min:stat on"
!
OUTPUT 723;"init:cont on"
!
LOCAL 723
END
Remote Operation
Example Programs
! Preset the instrument
! Automeasure
! Perform an autoalignment
! Set the center wavelength
! Set the wavelength span
! Set the sensitivity
! View trace B
! Update trace B
! Set trace B to max hold
! View trace C
! Update trace C
! Set trace C to min hold
! Turn continuous sweep on
! Return control to local
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