VIS-IR Thermography Detector Product Guide
Xtralis
36218_A2
24
Once these parameters are selected, the next step is to introduce the region in the
Detector
window using the
Edit Shape
section. Click the
Edit
icon to start the edition, and when it is finished click
End
.
For each region, it is possible to show a calculated value between several frames. To specify the frames that
are used in the calculated value, see
Working Area
Settings
Calculated buffer time
. This buffer time
is working in FIFO mode. For example, if 20 seconds are configured, the software uses the last frames from
the camera during the last 20 seconds.
The possible calculation values/ modes are:
•
Mean
: the temperature value of the area is the average value of all frames inside the buffer time
indicated in the software settings.
•
Peak hold maximum
: the temperature value of the area is the maximum value of all frames inside the
indicated buffer time in software settings (as explained above).
•
Peak hold minimum
: the temperature value of the area is the minimum value of all frames inside the
indicated buffer time in software settings (as explained above).
8.4.2 Hot and Cold Spots
It is possible to show on the detectors an image in real time for the position and value of the hot or cold spot
inside each region.
In each region, it is possible to represent the name, mode or temperature value by selecting the appropriate
options (
Name
,
Mode
,
Value
) in the
Label
section.
The label can be freely positioned using the
Edit
icon.
8.4.3 Emissivity
The emissivity is configured by region. It is necessary to set the emissivity value for each area.
To determine the emissivity of shiny surfaces in the field, you can use adhesive light absorbing dark foils, to
be found from i.e.
Acktar (
https://www.acktar.com/product/blackout-material-diffusive-foils
. Alternatively, you
can use an air or contact thermometer.
8.4.4 Distance
For the distance value, use the average distance between the closest and furthest point in the ROI.
8.4.5 Relative Humidity
Enter the relative humidity in percentage (%) for the ROI.
