Originally Posted by Mich48041
Rubber expands when cold. But who knows what the diaphragm is made of.
It is made of rubber. That said there are countless variations of "rubber." While it might expand when cold, it also gets stiff when cold. These sensor generally work off the principle of the rubber diaphragm expanding in a convex fashion due to the fluid pressure. The center of the convex shape is attached to something to measure it's linear movement that can correlate the movement to pressure level.
If the expanding rubber was adding errors, you would be seeing something other than 0 with no pressure when cold.
N64LR - RV-6A / IO-320, Flying as of 8/2015
N11LR - RV-10, Flying as of 12/2019
Last edited by lr172 : 12-30-2022 at 11:02 AM.