coaxial thermocouples and the coaxial thermocouples produced thermocouples

摘要

A coaxial thermoelement (10) having a thermocouple wire (12) coaxially disposed in a tubular metal sheath (16). A ceramic powder (14) electrically insulating is disposed in the tubular metal sheath (16) to insulate the thermocouple wire (12) from the tubular metal 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 the fused ends of the two coaxial thermoelements (10, 10') to form a thermocouple junction.