Abstract: Aspects for implementing 3-D printed metrology feature geometries and detection are disclosed. The apparatus may a measurement device for a 3-D printed component. The component may include a plurality of printed-in metrology features arranged at different feature locations on a surface of the component. The measurement device can be configured to detect the feature locations of the printed-in metrology features and to determine a position or an orientation of the component based on the detected feature locations. In various embodiments, the metrology feature may be a protruding or recessed spherical portion, with the corresponding feature location at the center of the sphere.

Abstract: Methods and systems data down-sampling are disclosed. A method includes selecting data samples from a first set of data samples, each associated with a sampling date, that meet at least one quality control criterion to generate a second set of data samples, and down-sampling the second set of data samples into a plurality of subsets of data samples. Each subset of the plurality of subsets of data samples contains a data sample predetermined quantity and is associated with a different time period. Down-sampling includes generating, based on the sampling date, a sampling date distribution for the second set of data samples, and selecting, for each time period of the plurality of sequential time periods, based on the sampling date distribution, data samples from the second set of data samples until each subset of the plurality of subsets of data samples contains the predetermined quantity of data samples.

Abstract: Systems and methods for monitoring temperature using wireless, flexible thermal sensors are disclosed. A wireless, flexible thermal sensor mountable on a body may comprise a substrate, a power source, a thermal actuator configured to receive power from a power source and supply thermal energy to a portion of a skin surface of the body, a temperature sensor configured to detect a change in a temperature related to the thermal actuator, and a comparator configured to receive an electrical signal corresponding to the temperature of the temperature sensor, compare the received signal to a reference signal, and output a signal based on the comparison. The sensor may further comprise a power control element configured to receive a signal corresponding to the output signal of the comparator and alter the delivery of power to the thermal actuator based at least in part on the signal received from the comparator.

Abstract: Aspects for implementing 3-D printed metrology feature geometries and detection are disclosed. The apparatus may a measurement device for a 3-D printed component. The component may include a plurality of printed-in metrology features arranged at different feature locations on a surface of the component. The measurement device can be configured to detect the feature locations of the printed-in metrology features and to determine a position or an orientation of the component based on the detected feature locations. In various embodiments, the metrology feature may be a protruding or recessed spherical portion, with the corresponding feature location at the center of the sphere.

Abstract: A cover for a rod end of an actuator comprises a mounting collar for surrounding and mounting to a portion of the rod end. The collar is deformable such that it may be mounted over a rod eye mounted to the rod end. The cover further comprises a shield extending from the collar and shaped such that when attached to the rod end the shield shields a portion of rod end to prevent fluid or foreign object ingress to the rod end.

Abstract: A cover for a rod end of an actuator comprises a mounting collar for surrounding and mounting to a portion of the rod end. The collar is deformable such that it may be mounted over a rod eye mounted to the rod end. The cover further comprises a shield extending from the collar and shaped such that when attached to the rod end the shield shields a portion of rod end to prevent fluid or foreign object ingress to the rod end.

Abstract: Disclosed herein is a cover for a rod end of an actuator. The cover comprises a mounting collar for surrounding and mounting to a portion of the rod end. The collar is deformable such that it may be mounted over a rod eye mounted to the rod end. The cover further comprises a shield extending from the collar and shaped such that when attached to the rod end the shield shields a portion of rod end to prevent fluid or foreign object ingress to the rod end. Also disclosed is a rod end assembly comprising a rod end and a cover mounted thereto and a method of assembling and retro-fitting a rod end and cover.

Abstract: Disclosed herein is a cover for a rod end of an actuator. The cover comprises a mounting collar for surrounding and mounting to a portion of the rod end. The collar is deformable such that it may be mounted over a rod eye mounted to the rod end. The cover further comprises a shield extending from the collar and shaped such that when attached to the rod end the shield shields a portion of rod end to prevent fluid or foreign object ingress to the rod end. Also disclosed is a rod end assembly comprising a rod end and a cover mounted thereto and a method of assembling and retro-fitting a rod end and cover.

Abstract: A method of determining material properties for an object under test is disclosed. The method comprises determining a thickness at a point on the object under test in a non-invasive manner. It also comprises obtaining a terahertz measurement by passing terahertz radiation through the object under test using a terahertz emitter and detecting the terahertz radiation using a terahertz detector. Finally, it comprises determining an optical property at the point on the object under test using a measurement value from the terahertz emitter and the terahertz detector and a measured value for the thickness at the point.

Abstract: A combuster is provided for utilizing a combustible mixture containing fuel and air, to heat a load fluid such as water or air, in a manner that minimizes the formation of nitrogen oxide. The combustible mixture passes through a small diameter tube where the mixture is heated to its combustion temperature, while the load fluid flows past the outside of the tube to receive heat. The tube is of a diameter small enough that the combustible mixture cannot form a flame, and yet is not subject to wall quench, so that combustion occurs, but at a temperature less than under free flame conditions. Most of the heat required for heating the combustible mixture to its combustion temperature, is obtained from heat flow through the walls of the pipe to the mixture.