Development of nicrosil-nisil type multi-paired thermocouple for high temperature

Watahiki, Shunsuke; Saito, Takashi; Tsuchiya, Kunihiko ; Ohara, Hiroshi; Iimura, Koichi 

This report is described for the development of nicrosil-nisil type multi-paired thermocouple which was usable at over 1000 degrees under the neutron irradiation environment. Developed nicrosil-nisil type multi-paired thermocouple has maximum 7 hot junctions in axial direction in a sheath. Though the design, trial production and out-pile tests, its productivity and electric performances were confirmed, and the production method was established.