4-4
IM AQ1200-01EN
4.2 Performing Averaged Measurements
In averaged measurements, the data that is acquired from each pulse is averaged and displayed. By
performing averaged measurements, you can improve the signal-to-noise (S/N) ratio.
This is effective when you want to detect faint events that are buried in noise.
WARNING
• During measurement, do not remove the optical fiber cable, because light is emitted from
the light source port. Visual impairment may occur if the light enters the eye.
• Close the covers of any light source ports that do not have optical fiber cables connected
to them. On models with two or more light source ports, visual impairment may occur if light
that is mistakenly emitted from the wrong port enters the eye.
French
AVERTISSEMENT
• Lorsque l’AQ1200x/AQ1205x génère de la lumière, la lumière est émise à travers les
ports de source lumineuse. Ne pas débrancher les câbles de fibre optique connectés. Des
lésions oculaires peuvent être causées si le faisceau lumineux pénètre l’œil.
• Masquer les orifices de source lumineuse sur lesquels aucun câble à fibres optiques n'est
branché. Sur les modèles d'au moins deux orifices de source lumineuse, une déficience
visuelle peut se produire si la lumière
émise par erreur du mauvais orifice pénètre dans l'œil.
Procedure
Starting and Stopping Measurements
1.
Using the
rotary knob
and
ENTER
, select
OTDR
.
2.
Press
AVG
. The measurement begins, and the measured waveform is displayed on the screen.
The Average menu appears. The average time or progress is displayed in the upper right of the screen.
During measurement, a mark appears at the top of the display to indicate that the laser light is on.
Select the marker
(see section 6.1).
Waveform display screen
(see section 5.1)
Laser on indication
Averaging duration or progress
Select the scale
(see section 5.2).
