Patent ID: 8033722
Filing Date: 2011-10-11
Classification: F01D,G01K

Abstract:
1. A thermocouple for use in a high temperature environment for a gas turbine engine comprising: a first electrically insulating layer formed over a surface of a component of said gas turbine engine and effective to provide a degree of electrical insulation at an operating temperature of the engine effective to permit operation of a thermocouple; a first thermocouple leg comprising platinum having a thickness in the range of 50-100 microns deposited on said first insulating layer; and, a second thermocouple leg comprising palladium also formed on said first insulating layer and having a thickness in the range of 50-100 microns, wherein said first and second thermocouple legs make ohmic contact at a first end of each leg to form a hot junction for conversion of heat into an electrical signal, and wherein a second end of each leg is disposed for making electrical contact with a circuit for processing said electrical signal into a reading of the temperature of said surface of said component.