Thermocouple structure and method for making same
Abstract
Abstract A LENGTH OF TUBE MADE FROM ONE METAL HAS AN EXTREMITY WITH A SMALLER DIAMETER AND WALL THICKNESS THAN ITS BASE. A LENGTH OF WIRE MADE FROM A DISSIMILAR METAL EXTENDS INSIDE THE TUBE IN AXIAL ALIGNMENT THEREWITH FROM A POINT SPACED FROM THE END OF THE EXTREMITY OF THE TUBE TO ITS BASE. A HOT THERMOCOUPLE JUNCTION IS FORMED IN A CYLINDRICAL AREA BETWEEN A PORTION OF THE EXTREMITY THE TUBE AND THE ADJACENT PORTION OF THE LENGTH OF THE WIRE. A TIP IS FORMED INTEGRAL WITH THE END OF THE EXTREMITY OF THE TUBE AND IS SPACED FROM THE ADJACENT END OF THE WIRE SO AS TO SEAL THE END OF THE TUBE FROM THE ATMOSPHERE WITHOUT ELECTRICAL CONTACT WITH THE END OF THE WIRE. A CONNECTOR HAVING A MALE MEMBER AND A FEMALE MEMBER ADAPTED TO MATE WITH EACH OTHER HAS TWO MUTUALLY INSULATED ELECTRICAL PATHS CONNECTING A PAIR OF LEADS TO THE TUBE AND THE WIRE, RESPECTIVELY. AT LEAST ONE COLD JUNCTION IS FORMED IN ONE OF THE ELECTRICAL PATHS. THE FORMATION OF THE TIP IS FACILITATED BY REDUCING THE OPEN AREA AT THE END OF THE TUBE PRIOR TO THE SEALING OPERATION.
Inventors
- 👤 Edmond M Wagner
Bibliographic Details
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