TEMPERATURE SENSOR Russian patent published in 2013 - IPC G01K7/12 

FIELD: measurement equipment.

SUBSTANCE: temperature sensor includes a housing with outer surface of variable cross section with a stepped projection continued to a cylindrical part, inside which there located along longitudinal axis of the housing are thermocouple wires of a thermocouple cable with a hot junction formed on the end inside a guard gap with elements of its attachment to a measuring object and fixation of a cable on external part. The sensor housing is a single solid structure including the guard gap. A sealing joint at the outlet of thermocouple cable out of the housing is made in the form of a cylindrical plug with two blind holes for installation through a non-detachable connection of two wire ends that are located on two diametrically opposite sides of thermocouple cable. Thermocouple cable consists of a sheath inside which thermocouple wires are located, which, starting from the junction, are isolated from each other and from the sheath and branched from the junction into two parallel lines. Space inside the sheath and between thermocouple wires is filled with mineral insulation.

EFFECT: improving accuracy of measurement and recording of temperature of measured environment.

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