Thermocouple for gas turbine environments
US8033722B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2008 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Apr 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K2217/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thin-film thermocouple (12) is disclosed for use with a gas turbine component. The thermocouple may be formed on a non-planar substrate (22) having formed thereon an electrically insulating layer (34) capable of maintaining its insulating properties at gas turbine operating temperatures. A first thermocouple leg (26) made of pure platinum is then deposited on the dielectric layer (34). A second thermocouple leg (28) made of another pure metal or a transparent ceramic oxide is also formed on the dielectric layer (34) wherein the first and second thermocouple legs make ohmic contact at a first end of each leg to form a hot junction (30) for conversion of heat into an electrical signal. The thermocouple may be deposited on a surface of a thermal barrier coating or between a thermal barrier coating and an underlying metal substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.