A na-eji thermocouples eme ihe na usoro iji hụ okpomọkụ ma jikọọ ya na pyrometers maka ngosi na njikwa. A na-eduzi thermocouple na pyrometer site na eriri ọkụ thermocouple / thermocouple na-akwụ ụgwọ. Ndị na-eduzi ndị a na-eji maka eriri thermocouple ndị a ka achọrọ ka ha nwee ihe ndị yiri ya na thermo-electric (emf) dị ka nke thermocouple eji maka ịhụ okpomọkụ. Anyị osisi tumadi rụpụta ụdị KX, NX, EX, JX, NC, TX, SC / RC, KCA, KCB akwụ ụgwọ waya maka thermocouple, na ha na-eji okpomọkụ nha ngwá na cables. Ngwaahịa na-akwụ ụgwọ thermocouple anyị niile na-agbaso GB/T 4990-2010 'Alloy wires of extension and charge cables for thermocouples' (Chinese National Standard), yana IEC584-3 'Thermocouple Part 3-na-akwụ ụgwọ waya' (International Standard). Ihe nnọchianya nke comp. waya: Thermocouple code + C/X, eg SC, KX X: Short maka ndọtị, pụtara na ihe nkwụnye ụgwọ waya alloy bụ otu ihe ahụ alloy nke thermocouple C: Short maka akwụ ụgwọ, pụtara na akwụ ụgwọ waya alloy nwere yiri ya. agwa ndị nwere alloy thermocouple n'ụdị ọnọdụ okpomọkụ.