Optical monitoring system for a gas turbine engine

摘要

A system for optically monitoring a gas turbine engine includes a viewport into the gas turbine engine, and an optical connection having a first axial end and a second axial end. The first axial end is optically coupled to the viewport and configured to receive an image from the viewport, the optical connection includes a substrate having multiple hollow passages each extending from the first axial end to the second axial end, and each hollow passage includes a reflective coating disposed on an inner surface of the hollow passage to facilitate transmission of a respective portion of the image from the first axial end to the second axial end. In addition, the system includes a detector array in optical communication with the second axial end of the optical connection. The detector array includes multiple detection elements configured to receive multiple respective portions of the image from the hollow passages.

主权项

1. A system for optically monitoring a gas turbine engine, comprising:
a viewport into an element of the gas turbine engine, wherein the viewport includes an opening disposed within a casing associated with the element and extending from an interior side of the casing to an exterior side of the casing and is configured to receive an image from an interior of the element; an optical connection having a first axial end and a second axial end, wherein the first axial end is optically coupled to the viewport and configured to receive the image from the viewport, the optical connection comprises a substrate having a plurality of hollow passages each extending from the first axial end to the second axial end, and each hollow passage includes a reflective coating disposed on an inner surface of the hollow passage to facilitate transmission of a respective portion of the image from the first axial end to the second axial end; and a detector array in optical communication with the second axial end of the optical connection, wherein the detector array comprises a plurality of detection elements, the plurality of detection elements is configured to receive a plurality of respective portions of the image from the plurality of hollow passages, and the detector array is configured to output signals indicative of a two-dimensional intensity map of the image, wherein the optical connection extends between the viewport and the detector array, optically couples the viewport to the detector array and conveys the image from the viewport to the detector array, and further wherein each hollow passage extends along a length of the optical connection and further facilitates transmission of the respective portion of the image from the viewport to the detector array.