Abstract: An additive manufacturing apparatus including an energy source configured for transmitting a laser, a build plate configured to have a powder configured to be heated by the laser for additive manufacturing, at least one mirror positioned between the energy source and the build plate, the at least one mirror configured to direct the laser from the energy source to the build plate, and an optical isolator configured to reduce energy bounce back into the energy source.

Abstract: An air data probe includes an air data probe body and an additively manufactured heater on the air data probe body, the heater including a first heater layer and a first dielectric layer on the first heater layer. The first dielectric layer makes up an exterior surface of the heater.

Abstract: A sweep gas system for an additive manufacturing machine can include a gas manifold having an outlet configured to effuse gas into a build area of the additive manufacturing machine. The gas manifold can be moveable across at least a portion of the build area. The sweep gas system can include a controller configured to control a position of the gas manifold.

Abstract: A method of repairing an air data probe includes assessing an air data probe for a damaged portion. The method includes depositing a material on the air data probe to repair the damaged portion of the air data probe. An air data probe includes a probe body including a sense port inlet defined through a wall of the probe body. At least a portion of the wall surrounding the sense port inlet is defined by a deposited material having a different microstructure than a material defining another portion of the wall.

Abstract: A method of repairing an air data probe includes assessing an air data probe for a damaged portion. The method includes depositing a material on the air data probe to repair the damaged portion of the air data probe. An air data probe includes a probe body including a sense port inlet defined through a wall of the probe body. At least a portion of the wall surrounding the sense port inlet is defined by a deposited material having a different microstructure than a material defining another portion of the wall.

Abstract: A method of determining an amount of imperfection in an additively manufactured material is disclosed herein. The method includes forming a sample piece constructed from the material during a same additive manufacturing cycle as a design piece constructed from the material, introducing a first electrical current to the sample piece while maintaining the sample piece at a reference temperature, and determining the amount of imperfection in the material depending on the measured resistance and the reference temperature of the sample piece.

Abstract: A vented module includes a housing portion having a drainage side and a drainage port within the drainage side. The module further includes a flame arrestor including a first surface having a fluid inlet, a second surface having at least one fluid outlet, a labyrinth channel extending from the fluid inlet to the fluid outlet, and at least one mesh screen disposed within the labyrinth channel. The flame arrestor is attached to the housing portion such that the drainage port is aligned with the fluid inlet.

Abstract: A temperature sensor includes a sensor body and a wedge extension. The sensor body extends from a sensor base to an opposed sensor tip along a longitudinal axis. The sensor body has a leading edge and opposed trailing edge. The sensor body also has an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage. The wedge extension is on the sensor body between the sensor tip and the sensor base on the leading edge of the sensor body.

Abstract: A flow measurement sensing device includes a first venturi having a first shield portion, an elongated portion connected to an outer surface of the first venturi, and a second venturi housed within the first venturi. The second venturi has a second shield portion and at least one air inlet. The flow measurement sensing device further includes a first integral passageway extending from the air inlet through the elongated portion. The first integral passageway has a first segment with a first cross-sectional shape and a segment with a second cross-sectional shape.

Abstract: A temperature sensor includes a sensor body and a wedge extension. The sensor body extends from a sensor base to an opposed sensor tip along a longitudinal axis. The sensor body has a leading edge and opposed trailing edge. The sensor body also has an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage. The wedge extension is on the sensor body between the sensor tip and the sensor base on the leading edge of the sensor body.

Abstract: A temperature sensor includes a sensor body and a wedge extension. The sensor body extends from a sensor base to an opposed sensor tip along a longitudinal axis. The sensor body has a leading edge and opposed trailing edge. The sensor body also has an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage. The wedge extension is on the sensor body between the sensor tip and the sensor base on the leading edge of the sensor body.

Abstract: A total air temperature sensor includes an airfoil body extending from an airfoil base to an opposed airfoil tip along a longitudinal axis. The airfoil body defines a leading edge and opposed trailing edge. The airfoil body defines an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage, and wherein the airfoil body defines a bleed passage through the airfoil body between the leading edge and the interior flow passage. A temperature probe is mounted within the interior flow passage for measuring temperature of flow through the interior flow passage to determine total air temperature.

Abstract: A device configured to prevent ice accumulation includes at least one wall defining a leading edge and a pneumatic passage configured to receive pressurized fluid. The device also includes at least one ejection port formed in at least one of the leading edge and the at least one wall, the at least one ejection portion fluidly coupled to the pneumatic passage to receive the pressurized fluid therefrom, the at least one ejection port configured to form fluid jets to divert liquid water droplets away from the leading edge of the device.

Abstract: A total air temperature sensor includes a supercritical airfoil body extending from an airfoil base to an opposed airfoil tip along a longitudinal axis. The supercritical airfoil body defines an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage. A temperature probe is mounted within the interior flow passage for measuring temperature of flow through the interior flow passage to determine total air temperature.

Abstract: A method is disclosed for making an air temperature sensor comprises first generating a digital model of an air temperature sensor housing. The digital model is inputted into an additive manufacturing apparatus comprising an energy source. The additive manufacturing apparatus applies energy from the energy source to successively applied incremental quantities of a fusible material.

Abstract: A temperature sensor includes a sensor body and a wedge extension. The sensor body extends from a sensor base to an opposed sensor tip along a longitudinal axis. The sensor body has a leading edge and opposed trailing edge. The sensor body also has an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage. The wedge extension is on the sensor body between the sensor tip and the sensor base on the leading edge of the sensor body.

Abstract: A total air temperature sensor includes an airfoil body extending from an airfoil base to an opposed airfoil tip along a longitudinal axis. The airfoil body defines a leading edge and opposed trailing edge. The airfoil body defines an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage, and wherein the airfoil body defines a bleed passage through the airfoil body between the leading edge and the interior flow passage. A temperature probe is mounted within the interior flow passage for measuring temperature of flow through the interior flow passage to determine total air temperature.

Abstract: A total air temperature sensor includes a supercritical airfoil body extending from an airfoil base to an opposed airfoil tip along a longitudinal axis. The supercritical airfoil body defines an interior flow passage with an inlet for fluid communication of fluid into the interior flow passage and an outlet for exhausting fluid out from the interior flow passage. A temperature probe is mounted within the interior flow passage for measuring temperature of flow through the interior flow passage to determine total air temperature.