ʻO ka mea mua, ma ke ʻano o ka hoʻohuihui ʻana o nā mea, ʻo ka uea thermocouple ʻano J he hui hao - constantan. Hana ka hao ma ke ʻano he wāwae maikaʻi, ʻoiai ʻo ka constantan (akeleawe - nikala) lawelawe ʻo ia ma ke ʻano he wāwae maikaʻi ʻole. I ka hoʻohālikelike ʻana, ua hana ʻia ka uea thermocouple ʻano K me kahichromel- hui pū ʻana o ka alumel. ʻO Chromel, ka mea i haku nui ʻia me ka nickel a me ka chromium, ʻo ia ka wāwae maikaʻi, a ʻo alumel, kahi hui nickel - alumini - manganese - silicon, ʻo ia ka wāwae maikaʻi ʻole. ʻO kēia ʻokoʻa i ka mea e alakaʻi ai i nā ʻokoʻa o kā lākou ʻano hana.

ʻO ka lua, ʻokoʻa loa nā pae mahana e hiki ai iā lākou ke ana.Nā thermocouples ʻano Jhiki ke ana maʻamau i nā mahana mai - 210°C a i 760°C. He kūpono lākou no nā ʻano hana like ʻole me nā koi mahana waena. No ka laʻana, i ka ʻoihana hana meaʻai, hoʻohana pinepine ʻia nā thermocouples ʻano J i nā umu hoʻomoʻa. I ka wā e hoʻomoʻa ai i ka berena, ʻo ka mahana i loko o ka umu maʻamau mai 150°C a i 250°C. Hiki i kā mākou mau uea thermocouple ʻano J kiʻekiʻe ke nānā pono i kēia mau mahana, e hōʻoiaʻiʻo ana ua hoʻomoʻa like ʻia ka berena a loaʻa ke ʻano kūpono. ʻO kekahi noi ma ka hana lāʻau lapaʻau, kahi e hoʻohana ʻia ai nā thermocouples ʻano J e ana i ka mahana i ka wā o ke kaʻina hoʻomaloʻo ʻana o kekahi mau lāʻau. Mālama pinepine ʻia ka mahana i loko o kēia kaʻina hana i loko o 50°C a i 70°C, a hiki i kā mākou huahana uea thermocouple ʻano J ke hāʻawi i ka ʻikepili mahana hilinaʻi, e pale ana i ka maikaʻi o nā lāʻau.

ʻO nā thermocouples ʻano K, ma ka ʻaoʻao ʻē aʻe, he laulā ākea ko lākou, mai - 200°C a i 1350°C. ʻO kēia ka mea e pono ai lākou i nā noi wela kiʻekiʻe. I ka ʻoihana hana kila,Nā thermocouples ʻano Khoʻohana ʻia e nānā i ka mahana i loko o ka umu pahū. Hiki i nā mahana i loko o ka umu pahū ke piʻi a hiki i ka 1200°C a ʻoi aku paha. Hiki i kā mākou mau uea thermocouple ʻano K ke kū i kēlā wela nui me ka mālama ʻana i ka pololei kiʻekiʻe, e ʻae ana i nā mea hoʻohana e kāohi pololei i ke kaʻina hana hoʻoheheʻe a hōʻoia i ka maikaʻi o ke kila. Ma ke kahua o ka aerospace, i ka wā o ka hoʻāʻo ʻana i nā ʻāpana mīkini jet, hoʻohana ʻia nā thermocouple ʻano K e ana i nā kinoea wela kiʻekiʻe i hana ʻia i ka wā o ka hana ʻenekini. Hiki i kēia mau kinoea ke hōʻea i nā mahana kokoke i 1300°C, a hiki i kā mākou huahana uea thermocouple ʻano K ke hāʻawi i nā heluhelu mahana pololei, he mea nui ia no ka hoʻomohala ʻana a me ka hoʻonui ʻana i nā mīkini jet.

ʻO ka pololei kekahi ʻano koʻikoʻi. ʻOi aku ka maikaʻi o ka pololei o nā thermocouples ʻano K ma luna o kahi ākea ākea o ka mahana i hoʻohālikelike ʻia me nā thermocouples ʻano J. ʻO ke kūpaʻa o nā thermocouples ʻano K i nā wahi ʻino e kōkua pū i ko lākou pololei kiʻekiʻe, e lilo ana lākou i koho makemake ʻia no ka noiʻi ʻepekema a me nā kaʻina hana ʻoihana kiʻekiʻe.

Ma Tankii, hana ʻia kā mākou huahana uea thermocouple J a me K me ka kaohi maikaʻi loa. Hōʻoia kā mākou mau uea thermocouple ʻano J i ka hana hilinaʻi i loko o kā lākou pae mahana i kuhikuhi ʻia, ʻoiai ua hoʻolālā ʻia kā mākou mau uea thermocouple ʻano K e kū i nā mahana kiʻekiʻe me ka pololei a me ke kūpaʻa maikaʻi loa. Inā pono ʻoe e ana i nā kaʻina hana hoʻomaʻalili haʻahaʻa a i ʻole nā ​​​​​​hana ʻoihana wela kiʻekiʻe, hiki i kā mākou huahana uea thermocouple ke hāʻawi iā ʻoe i ka ʻikepili mahana pololei a paʻa, e kōkua iā ʻoe e hoʻomaikaʻi i kāu mau hana a hōʻoia i ka maikaʻi o ka huahana.