New high-temperature noble-metal thermocouple pairing
Abstract
A new thermocouple pairing was formed by combining thermocouple elements from two existing commercially available thermocouples to form a new combination (Ir-40 Rh/Pt-40 Rh) thermocouple. The output of this new pairing is nearly linear with temperature, and approximately equal to the output of one of the originating pairs (Ir-40 Rh/Ir), and more than double that of the other pair (Pt-40 Rh/Pt-20 Rh). This new pairing was evolved during a search for a noble-metal thermocouple combination which could operate above the temperature limit of a Pt-13 Rh/Pt thermocouple and have a higher oxidation resistance than an Ir-40 Rh/Ir thermocouple.
- Publication:
-
Review of Scientific Instruments
- Pub Date:
- August 1975
- DOI:
- 10.1063/1.1134413
- Bibcode:
- 1975RScI...46.1107G
- Keywords:
-
- Combustion Chambers;
- Noble Metals;
- Thermocouples;
- High Temperature Environments;
- Intermetallics;
- Oxidation Resistance;
- Wire;
- Instrumentation and Photography;
- 07.20.Dt;
- Thermometers