ʻO ka ʻokoʻa ma waena o Thermocouple a me Thermal Resistance (RTD)

Nui nā hoaaloha e nīnau inā he ʻano like ka thermocouple a me RTD, ʻaʻole like ka pane pololei. ʻOiai ua hoʻohana ʻia nā thermocouple a me RTDS ma ke ʻano he mau mea ʻike wela, ʻokoʻa ko lākou mau kumu, kumu, a me nā pae wela.

Hoʻokaʻawale i ke ala 1: e like me ke ʻano o ka hoʻokaʻawale ʻana ma waena o nā thermocouple a i ʻole RTDs, ʻo nā thermocouple ka mea maʻamau i nā electrodes wela, insulating tubes, nā lima pale a me nā pahu junction a me nā ʻāpana ʻē aʻe, ʻo RTD ka hopena o ka ukana sensor a pili ka mana i loko. moʻo.

Hoʻokaʻawale i ke ʻano 2: e like me ka lepili e hoʻoholo ai inā he thermocouple a i ʻole RTD, ʻo ka nameplate he thermocouple kūikawā a i ʻole RTD kikoʻī huahana a me nā ʻike kikoʻī, pono mākou e nānā pono a hoʻokaʻawale i waena o nā thermocouple a i ʻole nā ​​​​RTDs hiki ke hoʻokaʻawale ʻia.

Hoʻokaʻawale i ke ʻano 3: ma o ka pahu pahu e hoʻoholo ai, aia kahi ʻokoʻa pole maikaʻi a maikaʻi ʻole ʻo thermocouple, ʻaʻohe ʻokoʻa pole maikaʻi a maikaʻi ʻole ʻo RTD. He mea maʻalahi kēia ʻano hoʻokaʻawale, hiki iā ʻoe ke hoʻāʻo oh.

E hoʻokaʻawale i ke ʻano 4: ma o ka laina uku e hoʻokolokolo ai, pono e koho ka thermocouple i nā laina uku like ʻole e like me nā hiʻohiʻona like ʻole, hoʻohui i ka laina uku e hoʻonui i ka paʻa o ka thermocouple, a ʻaʻole pono ʻo RTD i ka uea uku, akā ua māhele ʻia ʻo RTD i loko. nā hiʻohiʻona like ʻole.

ʻO Thermocouple a me RTD ʻelua mau ʻāpana like ʻole, pono mākou e hoʻokaʻawale maikaʻi, ʻaʻole hewa, pono mākou e maopopo e pili ana i nā mea e pono ai lākou e hana i ka hopena, e like me kā lākou pono maoli, koho i ka RTD a i ʻole thermocouple i ka laina me ʻO kā lākou kūlana maoli, e pili ana i ka thermocouple o ka ʻike hou, e hoʻonui pinepine ʻia mākou.