The sensors should be on good bearings, in order to promote them moving freely. Them flapping around slightly won't provide much noise. Which is probably drowned out by all the other noise on an aircraft.
> Them flapping around slightly won't provide much noise. Which is probably drowned out by all the other noise on an aircraft.
But the readings with the vane flapping around should have a significantly higher variance than the readings where the vane has frozen stuck. In addition, a sliding average should show the mean moving around significantly compared to the frozen readings. Surely they should be able to discriminate between these cases based on those factors, especially when cross-correlated with other sensors.
