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3-5
Programming
Making Measurements
Making Measurements
Making measurements remotely involves changing the Agilent 86120C’s
settings, performing a measurement, and then returning the data to
the computer. The simplified block diagram of the Agilent 86120C
shown here lists some of the available programming commands. Each
command is placed next to the instrument section it configures or
queries data from.
Notice that there are two buffers from which data can be queried: an
uncorrected data buffer and a corrected data buffer. With each scan of
the input wavelength range, the analog-to-digital converter loads
65,536 data values into the uncorrected data buffer. This is considered
to be one “measurement”. A fast- update measurement mode is avail-
able for quicker measurement acquisition. But, because only 32,768
data values are collected in fast- update measurement mode, the ability
to resolve closely spaced signals is reduced.