CJ...
As an A320 Capt, I should probably know what the sensors are... but not too sure
They are proper vanes, 3 in all, and vulnerable to jetty's. All 3 in the nose area.
The report has more detail on them than I suspect any Tech Manual we, or even the engineers, have. I also have heard of no significant issues with them previously... and this accident seems a rather "perfect storm" of factors that combined to a tragic outcome.
NoD