Abstract: A thermocouple probe assembly is provided that includes at least one ball bushing placed along the length of the assembly to dampen vibrations and thereby reduce mechanical stress on the assembly. A rake thermocouple is provided that includes a plurality of probe tubes arranged parallel to one another, and each probe assembly is placed into an individual probe tube. Each probe tube has a window defined therein, and an air inlet port extending from the window generally perpendicular to the probe tube. The rake also includes a mated end cap and cup bushing with a defined gap between the inside diameter of the cup bushing and the outside diameter of the end cap to further dampen mechanical stress on the rake.

Abstract: A thermocouple probe assembly is provided that includes at least one ball bushing placed along the length of the assembly to dampen vibrations and thereby reduce mechanical stress on the assembly. A rake thermocouple is provided that includes a plurality of probe tubes arranged parallel to one another, and each probe assembly is placed into an individual probe tube. Each probe tube has a window defined therein, and an air inlet port extending from the window generally perpendicular to the probe tube. The rake also includes a mated end cap and cup bushing with a defined gap between the inside diameter of the cup bushing and the outside diameter of the end cap to further dampen mechanical stress on the rake.