Abstract: Ultrasonic measurements of porosity in manufactured parts or materials are calibrated using reference standards in which parallel holes are drilled in the backside of a body of material. The holes simulate voids in a part which attenuate incident ultrasonic energy. The number, size and location of the holes determine the simulated level of porosity that may be used to calibrate an ultrasonic tester. Multiple reference standards representing different levels of porosity can be produced in the form of individual coupons, or in a single body having multiple groups of holes.

Abstract: Ultrasonic measurements of porosity in manufactured parts or materials are calibrated using reference standards in which parallel holes are drilled in the backside of a body of material. The holes simulate voids in a part which attenuate incident ultrasonic energy. The number, size and location of the holes determine the simulated level of porosity that may be used to calibrate an ultrasonic tester. Multiple reference standards representing different levels of porosity can be produced in the form of individual coupons, or in a single body having multiple groups of holes.

Abstract: Systems and methods for inspecting electrical conductivity in composite materials having conductive structures are disclosed. In one embodiment, a method for inspecting a conductive structure in a composite bonding region comprises positioning an apparatus operable to induce a current on the conductive structure. The apparatus is positioned on the conductive structure at a first selected position proximate to the bonding region. The method also comprises energizing the apparatus to provide a desired induced current in the conductive structure. The method further comprises detecting an impedance property value of the apparatus. Accordingly, the method additionally comprises positioning the apparatus at a second selected position if the impedance value is within a predetermined range of values. Alternatively, if the impedance value is not within the predetermined range, the method additionally comprises documenting the first selected position.

Abstract: Systems and methods for inspecting electrical conductivity in composite materials having conductive structures are disclosed. In one embodiment, a system of inspecting electrical conductivity in an electrical bonding region includes a coil coupled to an alternating current source that is configured to induce a current in a conductive structure within the region. A processor is coupled to the coil that is operable to detect an impedance property value from the coil that results from the current induced in the conductive structure.

Abstract: A portable numerically controlled (“N/C”) water-jet driller for drilling a hole through skin and substructure of structures, which includes an agile water-jet driller end effector and a numerically controlled apparatus for placing the water jet driller end effector within a region of the hole to be drilled. The N/C apparatus communicating with the agile water-jet driller end effector.