HBM FS22 SI User Manual page 102

BraggMONITOR SI User Interface
Conventional
Measurement
Method
SPD Measurement
Method
Conventional
Measurement
Method
SPD Measurement
Method
102
When the ranges are OFF, the threshold is defined for
each channel and is the same for all the sensors in that
channel, see Fig. 4.4 on page 41.
When the ranges are ON, the Smart Peak Detection is
active, allowing the effective use of the high dynamic
range offered by the interrogator through the introduction
of a threshold referenced to the peak on each sensor's
configurable range (refer to Fig. 4.5 on page 42). As in
the conventional measuring method, the threshold value
corresponds to the considered power level for the FBG
peak computation and it is defined in dB for each optical
channel individually.
Autoscan
The autoscan functionality is used to detect the FBG
sensors and to store the resulting configuration when its
result is successful.
Upon an autoscan, Sensor Names are set by default as
CHX.SABC, where X is the optical channel and ABC is
the number of the sensor on that optical channel sorted
by wavelength in ascending order.
Important
After an autoscan is successfully performed, the resulting
configuration overwrites any previously existent one.
In the case the ranges are OFF, the autoscan procedure
will detect the sensors that are above the specified
threshold. This threshold is referenced to the highest
peak on the spectral trace.
For the case in which the ranges are ON, besides the
threshold level, the autoscan procedure also takes into
consideration the width of the ranges to detect the FBG
A4249-8.0 HBM: public
FS22 SI