If I had to venture a guess, I’d submit the following:
The incoming air is rushing past the IAT sensor at an ever-increasing velocity, and that is accelerating the heat transfer from the tip of the heat-soaked IAT Sensor into the air charge, effectively chilling the sensor down to a cooler and cooler temperature until equilibrium in temperature is reached between the sensor and the air charge?
That’s the best I got...and it’s probably significantly biased toward old Mr Wizard episodes I’m subconsciously recalling, so take it with a grain of salt for sure...
The incoming air is rushing past the IAT sensor at an ever-increasing velocity, and that is accelerating the heat transfer from the tip of the heat-soaked IAT Sensor into the air charge, effectively chilling the sensor down to a cooler and cooler temperature until equilibrium in temperature is reached between the sensor and the air charge?
That’s the best I got...and it’s probably significantly biased toward old Mr Wizard episodes I’m subconsciously recalling, so take it with a grain of salt for sure...