- Mar 4, 2020
The math doesn't quite work that way. during cooling there is no additional heat source. However, during operation, you have a heat source and the temperature of that source is unknown, but could be quite high.He says in the review that the camera doesn't get hot on the outside, only moderately warm. This makes me wonder what could be the reason for this, and I cant really make sense of this. If certain components inside the camera indeed overheat to a considerable temperature, say 80°C, and the camera stays moderately warm outside, this would mean those components in the inside must be thermally really really well isolated. It would fit to the observation of a cool-down time of 2h. But who would thermally isolate components inside?
But then, when those components are able to cool down within 2h, this gives us a clue as to the thermal conductivity of those components: if heat goes down by conduction to room temperature within 2h I would assume an exponential heat half-life time of around 1h. Assuming this thermal conductivity, then I can't understand why the camera would suddenly overheat at 4 hours, I would assume the camera would have to approach thermal equilibrium within 2h and should be able to hold that state indefinitely. (equilibrium: Heat in = heat out. If heat gets out within 2h, then all the heat you put in within 2h also leaves the camera within 2h, so if you can go for more than 2h, that should be indefinite equilibrium)
It would be really interesting to see infrared-images of an overheated camera, to see, where the body dissipates heat to. It must go somewhere.
It all makes no real sense to me. I come to the conclusion, this must be somehow software-limited, not actually physically overheating components.