I looking at the detection range of some infrared sensor and see that, in Narrow FOV mode (zooming) , their detection range is always much longer. But why exactly is that?
In: 4
Because when you zoom in, you can see the target better.
Do you think you could find a target easier with binoculars or with the naked eye?
The computer has a sensor of a given size X. That sensor can take data from a 10 degree sweep or from a 5 degree sweep. If you go with 5 degrees, all the energy from that 5 degrees covers the whole sensor, so while the same amount of thermal energy will reach the lens, it will hit more “pixels” on the sensor.
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