Atec Agilent-81618A - Manual (Page 59)

Performance Tests Performance Tests
Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition
59
Relative Uncertainty due to Interference
(Optional Test)
N O T E The performance test "Relative Uncertainty due to Interference" is
optional, since the interference is given with the production of the unit
by mechanical and optical cavities and is unchanged by normal use of
the sensor module.
Refer to Figure 16 for a test setup to verify the relative uncertainty due
to interference within the optical head optical assembly. In order to
perform the relative uncertainty due to interference test, it is
mandatory to use two mainframes, since the time difference between
measurement A und B for a specific wavelength point has to be no
greater than 2 ms. Due to this short measurement interval, the
performance test of the Relative Uncertainty Due to Interference can
only be performed under computer control.