VIS-IR Thermography Detector Product Guide
Xtralis
36218_A2
6
5 Detector Location
Points of Consideration
For choosing the best position to install the detector, take the following points into consideration:
•
The detector must be located and installed so that its Field of View (FOV), the distance to the target, is
per the ‘theoretical spot size ratio’ calculation. Use the user-friendly spreadsheet
“36224 – Xtralis VIS-IR
Theoretical Spot Size Ratio Calculator”
for quick calculations and results
.
•
Install the detector in a position that it looks at the monitoring area as clear as possible. Avoid the
maximum obstacles to get a good image for the detector.
•
Install the detector high enough to ensure that there are no shadows in the Region of Interest (ROI).
•
The FOV of the detector must be oriented to the central point of the area to monitor.
•
Avoid reflections and direct sunlight on the target.
•
Avoid direct sunlight on the detector lens (saturation) of the visual detector.
•
Shield nuisance heat sources from the target where possible.
•
In indoor installations, the most common is to install the detectors in the corners. In this way, the best
perspective in vision is achieved.
•
The required number of detectors for the system will depend on the area shape, the used lenses and
the required pixel size. If two or more detectors are needed, the optimal solution is to normally install the
detectors facing each other. The monitoring in opposite direction avoids having shadow areas. See the
following figure:
Figure 2: Detectors Installation in Warehouse
•
For monitoring inside of tunnels, the recommended installation for the detectors is as following:
Figure 3: Detectors Installation in Tunnel
