A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the second end disposed in an ambient environment. Further included is a first sealing assembly configured to couple the sensor body to the second structure and to accommodate movement of the sensor body due to relative movement between the first and second structures. Yet further included is an interior cavity defined by an interior wall of the sensor body and a rotary position sensor mounted to the sensor body proximate the second end of the sensor body, the rotary position sensor configured to detect an angular position of a target disposed within the first environment, the rotary position sensor coupled to the target with a sensor linkage assembly.