Abstract:
PROBLEM TO BE SOLVED: To provide a probe with a wide inspection field by providing a driver having a length in a direction parallel with a scanning route and a width, and a receiver having an effective coil axis orthogonal to that of the driver a length in the same direction as the driver, a width larger thant the lath and a thickness. SOLUTION: An eddy current probe 28 is provided with a housing 60, a probe element 62, and an electrical connector 64. The element 62 is provided with a driver 70, a receiver 72 and a shield 74. The driver 70 is provided with a core and a driver coil. The effective axis of the driver coil is parallel with the main direction of a magnet field and in the vicinity of a main outside surface 76 of the receiver 72, and the magnetic field is even in the vicinity of the receiver 72. The receiver 72 is provided with a receiver coil and the effective axis of the receiver coil is arranged perpendicular to the effective axis of the driver coil to shield the magnetic field with respect to the receiver 72 and the driver 70. The receiver 72 has substantially at least a width which is about 1.25 times larger than the length of the receiver 72 so that it can cover a wide field.
Abstract:
An eddy current probe (62) for use in inspecting an object, includes a driver (70) having a coil (82) with an effective coil axis (124), and further includes a receiver (72) having a coil (92) with a coil axis (126) oriented substantially perpendicular to the driver coil effective coil axis, the receiver having a length (134), and a width (130), the length being the dimension in the direction parallel to the scanning path (116), and the width having a dimension magnitude substantially greater than that of the length. A method for inspecting an object uses such an eddy current probe. An eddy current probe for use in inspecting an object, includes a driver (70) having a coil (82) with an effective coil axis (124), the driver having a length (132) and a width (128), the length being the dimension in a direction substantially parallel to a scanning path (116), and further includes a receiver (72) having a coil (92) with a coil axis (126) oriented substantially perpendicular to the driver coil effective coil axis, where the magnitude of a distance between the receiver and at least one of the driver edges (140,144) is less than 0.125 times the width of the driver. A method for inspecting an object uses such an eddy current probe.
Abstract:
An eddy current probe for use in inspecting an object, includes a driver having a coil with an effective coil axis, and further includes a receiver having a coil with a coil axis oriented substantially perpendicular to the driver coi l effective coil axis, the receiver having a length, and a width, the length being the dimension in the direction parallel to the scanning path, and the width havi ng a dimension magnitude substantially greater than that of the length. A method for inspecting an object uses such an eddy current probe. An eddy current probe for use in inspecting an object, includes a drive r having a coil with an effective coil axis, the driver having a length and a width, the length being the dimension in a direction substantially parallel to a scanning path, and further includes a receiver having a coil with a coil axis oriente d substantially perpendicular to the driver coil effective coil axis, where th e magnitude of a distance between the receiver and at least one of the edges i s less than 0.125 times the width of the driver. A method for inspecting an object uses such an eddy current probe.
Abstract:
An eddy current probe for use in inspecting an object, includes a driver having a coil with an effective coil axis, and further includes a receiver havin g a coil with a coil axis oriented substantially perpendicular to the driver coil effective coil axis, the receiver having a length, and a width, the length being the dimension in the direction parallel to the scanning path, and the width having a dimension magnitude substantially greater than that of the length. A method for inspecting an object uses such an eddy current probe. An eddy current probe for use in inspecting an object, includes a driver having a coil with an effective coil axis, the driver having a length and a widt h, the length being the dimension in a direction substantially parallel to a scanni ng path, and further includes a receiver having a coil with a coil axis oriented substantially perpendicular to the driver coil effective coil axis, where the magnitude of a distance between the receiver and at least one of the edges is le ss than 0.125 times the width of the driver. A method for inspecting an object uses such an eddy current probe.
Abstract:
A method of determining the thickness of an internal wall in a gas turbine engine component includes the steps of utilizing flash thermography to measure a complete thickness of a component between an outer wall and at least one enlarged cooling channel at a location where an outer cooling channel is positioned between the outer wall and the at least one enlarged cooling channel and where at least one member spans the cooling channel, such that the thickness is through the member which spans the outer cooling channel. An outer thickness of the component is measured from the outer wall to an outer wall of the outer cooling channel. A thickness is determined from an inner wall of the outer cooling channel to the at least one enlarged cooling channel by subtracting the measured outer thickness from the complete thickness, and also subtracting a known thickness of the outer cooling channel.
Abstract:
Systems and methods are disclosed herein for repairing components. A material layer may be deposited on a surface of a component. The material layer may cover a cooling hole. A pulsed heat source may heat the component and the material layer. An infrared camera may take a series of images of the component. A location of the cooling hole may be identified based on thermal properties of the component. A removal tool may remove a portion of the material layer in order to expose the cooling hole.