Next Article in Journal
Label-Enhanced Surface Plasmon Resonance: A New Concept for Improved Performance in Optical Biosensor Analysis
Next Article in Special Issue
Development of On-Line Monitoring Systems for High Temperature Components in Power Plants
Previous Article in Journal
A Kalman Filter Implementation for Precision Improvement in Low-Cost GPS Positioning of Tractors
Previous Article in Special Issue
A Coaxial Cable Fabry-Perot Interferometer for Sensing Applications
Article Menu

Export Article

Open AccessReview
Sensors 2013, 13(11), 15324-15347;

Metallic and Ceramic Thin Film Thermocouples for Gas Turbine Engines

Department of Chemical Engineering, University of Rhode Island, 16 Greenhouse Road, Crawford Hall Room 205, Kingston, RI 02881, USA
Author to whom correspondence should be addressed.
Received: 30 August 2013 / Revised: 28 October 2013 / Accepted: 30 October 2013 / Published: 8 November 2013
(This article belongs to the Special Issue Sensors for Harsh-Environment Applications)
PDF [2261 KB, uploaded 21 June 2014]


Temperatures of hot section components in today’s gas turbine engines reach as high as 1,500 °C, making in situ monitoring of the severe temperature gradients within the engine rather difficult. Therefore, there is a need to develop instrumentation (i.e., thermocouples and strain gauges) for these turbine engines that can survive these harsh environments. Refractory metal and ceramic thin film thermocouples are well suited for this task since they have excellent chemical and electrical stability at high temperatures in oxidizing atmospheres, they are compatible with thermal barrier coatings commonly employed in today’s engines, they have greater sensitivity than conventional wire thermocouples, and they are non-invasive to combustion aerodynamics in the engine. Thin film thermocouples based on platinum:palladium and indium oxynitride:indium tin oxynitride as well as their oxide counterparts have been developed for this purpose and have proven to be more stable than conventional type-S and type-K thin film thermocouples. The metallic and ceramic thin film thermocouples described within this paper exhibited remarkable stability and drift rates similar to bulk (wire) thermocouples. View Full-Text
Keywords: thin film; gas turbine engine; thermocouple; platinum; palladium; indium tin oxide; sputtering thin film; gas turbine engine; thermocouple; platinum; palladium; indium tin oxide; sputtering
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Tougas, I.M.; Amani, M.; Gregory, O.J. Metallic and Ceramic Thin Film Thermocouples for Gas Turbine Engines. Sensors 2013, 13, 15324-15347.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top