Patent ID: 9702783
Date: 2017-07-11
CPC Classifications: G01M,G01N,G01P

Claim:
1. An air data probe comprising: a stationary housing assembly including a mounting plate secured over an opening in a housing to define a probe cavity; an air data measurement unit rotatable about a longitudinal axis of the air data probe, relative to the stationary housing assembly; a fluid sensing unit disposed proximate to an interface between the housing assembly and the air data measurement unit, the fluid sensing unit comprising: a combination ring fastened to an inner side of the mounting plate, the combination ring including a dielectric substrate portion having a first side with a conductive metal ring portion formed concentrically between inner and outer edges of the dielectric substrate; wherein the combination ring is fastened with the first side facing the inner side of the mounting plate and such that only the dielectric substrate portion contacts the inner side of the mounting plate, for dielectrically spacing the conductive metal ring portion from the first sensing surface.