Abstract: A system for providing powered device operation on a rotating mechanism comprises static hardware configured to remain in a fixed position and rotating hardware configured to rotate about a central axis. Power generation circuitry associated with the static hardware and the rotating hardware is configured to generate a DC power signal on the rotating hardware and output the DC power signal. A powered device located on the rotating hardware is configured to receive the DC power signal and perform a powered operation on the rotating hardware.

Abstract: An apparatus includes a blade outer air seal (BOAS), a measurement instrument adapter, and a measurement instrument. The BOAS includes at least one first channel configured to permit air to flow from an entry point of the at least one first channel to an exit point of the at least one first channel. The measurement instrument adapter includes at least one second channel configured to permit air to flow from an entry point of the at least one second channel to an exit point of the at least one second channel. The measurement instrument adapter is disposed within a first receptacle of the measurement instrument adapter configured to receive the measurement instrument. The measurement instrument adapter is disposed within a second receptacle of the BOAS configured to receive the measurement instrument adapter. The apparatus is configured for installation in a gas-turbine engine.

Abstract: An apparatus, comprising an optical probe having optical components therein. A gas path router receives an airflow from a gas path of a gas turbine engine. The gas path router is configured to route the airflow from the gas path past the optical components of the optical probe to purge debris from the optical components.

Abstract: An apparatus for providing leakage monitoring comprises an inner conduit configured to conduct a fluid therethrough. An outer conduit is coaxially located with the inner conduit and surrounds the inner conduit. The inner conduit and the outer conduit define a dielectric gap therebetween. A capacitive value defined between the inner conduit and the outer conduit defines a first capacitive value when the inner conduit is not leaking the fluid into the dielectric gap between the inner conduit and the outer conduit and defines a second capacitive value when the inner conduit is leaking the fluid into the dielectric gap between the inner conduit and the outer conduit.

Abstract: A housing for internal components of an optical probe is provided. The housing includes a housing body including an outer surface and an inner surface opposite the outer surface. The housing body is elongated along a center longitudinal axis from a proximal end to a distal end. The inner surface defines and annularly surrounds a cavity that is open at the proximal end and closed at the distal end. The housing includes a purge channel that includes a gas inlet and a gas outlet. The purge channel extends axially relative to the center longitudinal axis from the gas inlet to the gas outlet. The purge channel is formed between the outer surface and the inner surface of the housing body. The gas outlet is located distally from the gas inlet and through the inner surface of the housing body. The gas outlet directs gas into the cavity toward the distal end.

Abstract: A measurement system is provided that includes a probe housing, a field probe and an optical probe. The probe housing includes a sidewall, a cavity and a channel. The sidewall extends circumferentially around and axially along the cavity. The channel is radially outboard of the cavity and extends axially in the sidewall. The field probe includes a field sensor disposed in the cavity. The field sensor forms a sensor face. The optical probe is configured with an optical line of sight through the channel into a volume adjacent the sensor face.

Abstract: An apparatus includes an optical sensor and at least one controller operably coupled to the optical sensor. The optical sensor is configured to detect a time of arrival (TOA) of a blade while operating in a TOA mode. The at least one controller is configured to determine that conditions on a tip of the blade are subject to icing while the optical sensor is operating in the TOA mode. The at least one controller is also configured to control the optical sensor to operate in a deicing mode to increase power of the optical sensor and heat the tip of the blade.

Abstract: An adapter for pulling a lead wire through an engine assembly comprises a lead connector configured to connect with a lead wire connector associated with a lead wire. A width of the lead connector is equal to or less than a width of the lead wire connector. A pull connector is configured to connect with a pull cable threaded through the engine assembly to enable a pulling force to be applied to the adapter. The pull connector is integrated with the lead connector.

Abstract: An apparatus includes an optical sensor and at least one controller operably coupled to the optical sensor. The optical sensor is configured to detect a time of arrival (TOA) of a blade while operating in a TOA mode. The at least one controller is configured to determine that conditions on a tip of the blade are subject to icing while the optical sensor is operating in the TOA mode. The at least one controller is also configured to control the optical sensor to operate in a deicing mode to increase power of the optical sensor and heat the tip of the blade.

Abstract: An optical system is provided that includes a conduit fitting, a first connector, a first conduit, a first ferrule and a first nut. The conduit fitting includes a receptacle. The first connector is disposed within the receptacle. The first connector includes a first bore, a first counterbore and a first port radially outboard of the first bore. The first conduit includes a first optics line and a first fluid passage. The first conduit projects longitudinally into the first counterbore and is attached to the first connector. The first optics line projects longitudinally into the first bore. The first fluid passage is fluidly coupled with the first port. The first ferrule circumscribes the first connector. The first nut is threaded onto the conduit fitting and is configured to wedge the first ferrule radially between the first connector and the conduit fitting.

Abstract: An adapter includes a cup having an inner portion proportioned to retain a sensor probe such that a face of the sensor probe is exposed to an interior of a gas turbine, where the inner portion includes a sidewall and a lip. The cup also includes one or more channels extending along the sidewall and across the lip. The adapter includes a mounting flange, where the one or more channels are configured to direct a gas from an exterior of the gas turbine across the face of the sensor probe.

Abstract: A lead cooling assembly includes a cooling jacket including a tubular section having an exterior portion and an interior portion, where the interior portion is proportioned to surround a probe lead and provide space for a flow of a gaseous coolant. The lead cooling assembly also includes an intake configured to admit the gaseous coolant into the interior portion of the cooling jacket. The lead cooling assembly further includes a collar configured to fit over the exterior portion of the cooling jacket, where the collar includes one or more exit holes configured to pass the gaseous coolant out of the interior portion of the cooling jacket.

Abstract: A measurement system is provided that includes a probe assembly. The probe assembly includes a capacitance probe and an optical probe. The capacitance probe includes a capacitance sensor that forms a sensor face of the probe assembly. An aperture projects axially through the capacitance sensor to the sensor face. The optical probe is configured with an optical line of sight through the aperture into a volume adjacent the sensor face.

Abstract: A system includes a shaft configured to rotate about an axis. The system also includes a target coupled to the shaft and having a radius that varies around a circumference of the target. The system further includes a sensor configured to measure a distance between the sensor and an outer surface of the target. In addition, the system includes at least one processing device configured to receive at least one distance measurement from the sensor and determine a rotational angular position of the shaft based on the at least one distance measurement and known profile data of the target.

Abstract: A component assembly of a gas turbine engine includes a component of a gas turbine engine, and an instrumentation probe installed to the component. The instrumentation probe includes a sensor body extending through a component wall, and a threaded fastener installed onto a complimentary thread of the sensor body to retain the sensor body. The threaded fastener is retained to the sensor body via deforming a threaded interface between the threaded fastener and the sensor body. A method of installing an instrumentation probe to a component of a gas turbine engine includes installing a sensor assembly of the instrumentation probe through a component wall, securing a threaded fastener to a complimentary thread of the sensor assembly to retain the sensor body, and deforming a threaded interface between the threaded fastener and the sensor assembly to prevent rotation of the threaded fastener relative to the sensor assembly.

Abstract: A normal interface surface mating sensor includes a power source, a plurality of electrically conductive sensing elements, and at least one of an ammeter or a voltmeter. The voltmeter is connected in parallel with the first terminal and the second terminal of the power source. The plurality of electrically conductive sensing elements is coupled to the first terminal of the power source, is arranged on a first contact face in a pattern such that a spatial location of each sensing element generates an electrical signal when a conductive area on an opposing contact face physically contacts the first contact face at the spatial location of the sensing element contacted. Measurements from the ammeter and the voltmeter together are output as a contact event indicator that includes a conductivity measurement corresponding to the electrical signal generated by the physical contact at a sequence of the NISMSs contacted.

Abstract: An engine inspection apparatus includes a remotely controlled inspection rover, a rover deployment cart, and a stabilization tether having a first end attached to the inspection rover and a second end attached to the rover deployment cart. The stabilization tether is configured to prevent at least one of ingestion of the inspection rover by an engine while the engine is operating and expulsion of the inspection rover by the engine while the engine is operating.

Abstract: A turbine engine includes an inlet guide vane assembly that includes a plurality of inlet guide vanes that are disposed forward of the fan. An optical inspection system includes a probe body that extends into the inlet air flow path upstream of the inlet guide vane assembly. The optical inspection system includes an optical device that is at least partially disposed within the probe body with a field of view directed between at least two of the inlet guide vanes of the plurality of fan blades.

Abstract: A packing sub-assembly for a fitting assembly for an instrumentation lead, including: a first component; a second component; and a third component, the first component, the second component and the third component each being configured to interlock with each other to define an opening that passes through the packing sub-assembly, and each defining a portion of the opening and having an open area adjacent to the portion that defines the opening and wherein the open area is sealed by an adjacent one of the first component, the second component and the third component when the first component, the second component and the third component are interlocked together.

Abstract: A method of inspecting fan blades of a turbine engine includes obtaining images of a plurality of fan blades during rotation, sensing a time of arrival for each of the plurality of fan blades, defining a signature that is indicative of a time of arrival for each individual one of the plurality of fan blades, correlating the obtained images of the plurality of fan blades with the signature that is indicative of the time of arrival of each of the individual fan blades, and identifying a feature of a specific one of the plurality of fan blades based on the obtained images and the signature that is indicative of the time of arrival of the individual one of the plurality of fan blades.