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AssigneeThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration
InventorJames F. Morris
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Thermocouples of the present invention provide stability and performance reliability in systems involving high temperatures and vacuums by employing a bimetallic thermocouple sensor wherein each metal of the sensor is selected from a group of metals comprising tantalum and rhenium and alloys containing only those two metals. The tantalum, rhenium thermocouple sensor alloys provide bare metal thermocouple sensors having advantageous vapor pressure compatibilities and performance characteristics. The compatibility and physical characteristics of the thermocouple sensor alloys of the present invention result in improved emf, temperature properties and thermocouple hot junction performance. The thermocouples formed of the tantalum, rhenium alloys exhibit reliability and performance stability in systems involving high temperatures and vacuums and are adaptable to space propulsion and power systems and nuclear environments.
A thermocouple for measuring temperature in high temperature systems having a bimetallic thermocouple sensor wherein each metal of said bimetallic sensor is dissimilar and is selected from the group consisting of tantalum, rhenium and alloys thereof containing only rhenium and tantalum.
In a thermocouple for measuring temperature in high temperature and vacuum systems, the improvement comprising
In a thermocouple for measuring temperature in high temperature and vacuum systems, the improvement comprising
Dependencies are inferred from the claim text.