ʻO ka mea mua, he nui nā thermocouples i hoʻopaʻa ʻia i ke kala. He kuhikuhi ʻike wikiwiki kēia ʻōnaehana hoʻopaʻa kala, akā he mea nui e hoʻokokoke aku me ke akahele. No ka laʻana, i lokonā thermocouples ʻano K, ʻo ia kekahi o nā thermocouples i hoʻohana nui ʻia ma muli o ko lākou laulā wela ākea a me ke kūpaʻa maikaʻi, hana pinepine ʻia ke kaula maikaʻi i ka chromel a pinepine ʻia i ka melemele, ʻoiai ʻo ke kaula maikaʻi ʻole, i hana ʻia me ka alumel, he ʻulaʻula maʻamau. Eia nō naʻe, ʻokoʻa paha nā kūlana coding kala ma nā wahi like ʻole a i ʻole e like me nā mea hana like ʻole. I kekahi mau hoʻonohonoho maʻamau ʻole a kahiko paha, ʻaʻole paha e hahai nā kala i ke kuʻuna maʻamau. No laila, mai hilinaʻi wale i ke kala no ka ʻike ʻana; pono e hoʻohana ʻia ma ke ʻano he alakaʻi mua.

ʻO kekahi ala hilinaʻi ʻē aʻe, ʻo ia ke nānā i nā mea uea. Hana ʻia nā ʻano thermocouples like ʻole me nā metala like ʻole, a loaʻa i kēlā me kēia ʻano kahi uea maikaʻi a maikaʻi ʻole i ho'ākāka ʻia ma luna o kēia mau mea. No ka laʻana, manā thermocouples ʻano J, ua hana ʻia ke kaula maikaʻi i ka hao, i ʻike ʻia no kāna pane maikaʻi i kekahi mau pae mahana, a ʻo ke kaula maikaʻi ʻole he constantan, e hāʻawi ana i ke kūpaʻa maikaʻi loa a me ka hoʻohālikelike me ka hao. Ma ka ʻōlelo ʻana i nā kikoʻī ʻano thermocouple kūhelu, e wehewehe ana i ka haku mele pololei a me ka polarity o kēlā me kēia ʻano, hiki i nā mea hoʻohana ke hoʻoholo i nā polarities pololei me ka ʻoiaʻiʻo nui. Eia kekahi, hele mai kekahi mau thermocouples holomua me nā pepa ʻikepili ʻaʻole wale i ka papa inoa o nā mea akā hāʻawi pū i ka ʻike hou aku e pili ana i nā ʻano uila i manaʻo ʻia e pili ana i nā kaula maikaʻi a me nā mea maikaʻi ʻole.

Hāʻawi nā huahana uea thermocouple a kā mākou hui i nā pono kūikawā ma kēia ʻano. Hōʻailona maopopo mākou i nā uea maikaʻi a maikaʻi ʻole ma kā mākou huahana āpau, ʻaʻole wale ma o ke code kala maʻamau akā me nā lepili maopopo hoʻi. Paʻi ʻia nā lepili me ka hoʻohana ʻana i ka ʻīnika kiʻekiʻe a paʻa ʻaʻole e mae a mae wale paha, ʻoiai ma nā ʻano ʻoihana ʻino. Hōʻoia kēia ʻōnaehana ʻike pālua e hiki i nā mea hoʻohana ke ʻike koke a pololei i nā uea, e mālama ana i ka manawa a e hōʻemi ana i ka pilikia o nā pilina hewa.

Eia kekahi, ua hana ʻia kā mākou mau uea thermocouple mai nā metala metala kiʻekiʻe me ke kūpaʻa wela maikaʻi loa a me ka lōʻihi. Pili ke kaʻina hana i ka kaohi maikaʻi loa i kēlā me kēia pae, mai ke koho ʻana i nā mea maka a hiki i ka hoʻopili hope loa. Inā paha no nā noi ʻoihana wela kiʻekiʻe, e like me ka hana kila kahi e hiki ai i nā mahana ke piʻi i nā pae kiʻekiʻe loa, a i ʻole nā ​​​​hoʻokolohua ʻepekema pololei e koi ana i ka pololei minuke, hiki i kā mākou huahana ke mālama i ka hana paʻa a me nā hopena ana pololei. Hana pū mākou i nā hoʻāʻo koʻikoʻi ma kēlā me kēia pūʻulu o nā uea thermocouple, me nā hoʻāʻo no ka conductivity uila, ka paʻa thermal emf, a me ka ikaika mechanical. Me kēia mau kaʻina hana kaohi maikaʻi loa, hōʻoia mākou e hoʻokō nā uea maikaʻi a me nā uea maikaʻi ʻole i kā mākou huahana thermocouple i nā kūlana ʻoihana kiʻekiʻe loa, e hāʻawi ana iā ʻoe i kahi hopena hilinaʻi no ke ana ʻana i ka mahana.

I ka hopena, ʻoiai he nui nā ala e ʻike ai i nā uea maikaʻi a maikaʻi ʻole o kahi thermocouple, ʻo ke koho ʻana i kā mākou huahana uea thermocouple kiʻekiʻe e hoʻomaʻalahi i ke kaʻina hana a hōʻoia i ke ana ʻana o ka mahana pololei a paʻa. ʻO kā mākou kūpaʻa i ka maikaʻi a me ka hoʻolālā maʻalahi e hoʻolilo iā mākou i koho kūpono no kāu mau pono uea thermocouple āpau.