COAXIAL THERMOELEMENTS AND THERMOCOUPLES MADE FROM THE COAXIAL THERMOELEMENTS

摘要

A coaxial thermoelement (10) having a thermocouple wire (12) coaxially disposedin a tubular metal sheath (16). A ceramic powder (14) electrically insulating is disposedin the tubular metal sheath (16) to insulate the thermocouple wire (12) from the tubularmetal sheath (16). A thermocouple (24) is formed by fusing the thermocouple wire (12)to its metal sheath (16) in each of two coaxial thermoelements (10, 10') and joining thefused ends of the two coaxial thermoelements (10, 10') to form a thermocouple junction.