Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Reexamination Certificate
2008-12-03
2011-10-11
Guadalupe, Yaritza (Department: 2841)
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
C374S052000, C374S144000
Reexamination Certificate
active
08033722
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.
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Kulkarni Anand A.
Mitchell David J.
Roesch Edward R.
Guadalupe Yaritza
Siemens Energy Inc.
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