Sensor packaging for turbine engine

A turbine, comprising:

• a rotor, which is rotatable about a centerline thereof;
• a pressure sensor mounted on a rotating component to measure static and/or dynamic pressures at a point of measurement interest defined on the rotor at a radial distance from the centerline;
• a communication system by which static and/or dynamic pressure measurements are transmittable from the pressure sensor to a non-rotating recording system;
• and
• a probe holder to secure the pressure sensor as mounted on the rotating component and a portion of the communication system on the rotor proximate to the point of measurement interest,
• the probe holder comprising a surface and a wiring assembly to hold a section of the portion of the communication system against the surface with relative movement of the section relative to the surface prevented and slack provided along the surface at the probe holder on either side of the wiring assembly and the section,
• wherein the point of measurement interest is located at a cooling air hole exit of a middle shaft with a sensor longitudinal axis parallel with a circumferential dimension of the rotor and the probe holder comprises:
• a probe holder body and a cap extendible between adjacent cooling air hole exits defined within a middle shaft such that a face of the probe holder body and a rear end of the cap are respectively substantially aligned with respective curvatures of the adjacent cooling air hole exits,
• the probe holder body and the cap being formed to define a sensor receptive cavity therein in which the sensor is receivable in abutment with sensor cavity shoulders and a sensing device thereof aligns with the face of the probe holder body.

A turbine, comprising:

• a rotor, which is rotatable about a centerline thereof;
• a pressure sensor mounted on a rotating component to measure static and/or dynamic pressures at a point of measurement interest defined on the rotor at a radial distance from the centerline;
• a communication system by which static and/or dynamic pressure measurements are transmittable from the pressure sensor to a non-rotating recording system;
• and
• a probe holder to secure the pressure sensor as mounted on the rotating component such that a longitudinal axis thereof is substantially parallel with one of a radial, circumferential or axial dimension of the rotor and to secure a portion of the communication system with strain relief on the rotor proximate to the point of measurement interest,
• the probe holder comprising a surface and a wiring assembly to hold a section of the portion of the communication system against the surface with relative movement of the section relative to the surface prevented and slack provided along the surface at the probe holder on either side of the wiring assembly and the section,
• wherein the point of measurement interest is located at a forward flange of a middle shaft with a sensor longitudinal axis parallel with an axial dimension of the rotor and the probe holder comprises:
• a probe holder body having an axially rearward-most face and a probe holder plug installable into a cavity formed in the forward flange in a first direction such that the axially rearward-most face is aligned with a rearward-most face of the forward flange, the probe holder body and the probe holder plug being formed to define a sensor receptive cavity therein;
• a bolt and a bridging ring installable into the cavity of the forward flange in a second direction opposite from the first direction;
• and
• an elastic element anchored on the bolt to bias a shoulder portion of the sensor against an abutment portion of the sensor receptive cavity such that a sensing device is aligned with the axially rearward-most faces of the probe holder body and the forward flange.