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5-7
IM AQ6373-01EN
Mesurement
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App
Index
Absolute power display: measurement of light sources with narrow spectrum widths,
such as gas lasers or laser diodes.
Power density display: measurement of light sources with wide spectrum widths, such as
natural light or LEDs.
If the subtraction function between traces is used for such cases as A-B(A/B)→C or
B-A(B/A)→C, results will be the same whether the absolute power display or the power
density display is used.
Since the power measurement function performs different calculations according to the
level axis display, correct results will be available whichever display is employed.
Note
Specifications such as level accuracy, measurement level range, and level linearity of the
instrument are provided for the absolute power display.
5.2 Horizontal/Vertical Axis Settings