He aha ka mea hoʻomehana wela?
He ʻano inoa like ʻole nā mea hoʻokele mahana, e like me nā kuapo hoʻokele mahana, nā mea pale mahana a me nā mea hoʻokele mahana. Wahi a ke kumu hana, hiki ke hoʻokaʻawale ʻia i ka thermostat ʻano lele, ka thermostat ʻano wai, ka thermostat ʻano kaomi a me ka thermostat ʻano uila. I nā lako hoʻokele ʻoihana hou, ʻo ka thermostat kikohoʻe ke ʻano i hoʻohana pinepine ʻia. Wahi a ke ʻano, hiki ke hoʻokaʻawale ʻia ka mea hoʻokele mahana i ka mea hoʻokele mahana i hoʻohui ʻia a me ka mea hoʻokele mahana modular.
He aha nā ana wela?
ʻO ke kino ana wela kahi ʻāpana e hoʻololi i ka hōʻailona wela i hōʻailona uila, a ua hoʻokomo pinepine ʻia ma ka ʻāpana ʻike o ka mea i kāohi ʻia e nānā i kona waiwai mahana. Ma ke kahua o ka kaohi ʻoihana, ʻo nā ana wela i hoʻohana pinepine ʻia e komo pū me nā thermocouples, nā resistors thermal, nā thermistors a me nā sensor non-contact. I waena o lākou, ʻo nā mea mua ʻekolu he mau ana wela pili.
1. Hoʻohuihui Thermo
Hoʻokumu ʻia ke kumumanaʻo o ke ana ʻana o ka mahana no nā thermocouples ma ka hopena Seebeck (hopena thermoelectric). Ke hana ʻelua metala o nā mea like ʻole (ʻo ka maʻamau he mau alakaʻi a i ʻole semiconductors, e like me ka platinum-rhodium, nickel-chromium-nickel-silicon a me nā mea ʻē aʻe i hui pū ʻia) i kahi loop pani a hoʻopili i nā mahana like ʻole i ko lākou mau wēlau hoʻohui ʻelua, hoʻokumu ʻia kahi ikaika electromotive ma waena o nā metala ʻelua. Ua kapa ʻia kēlā loop he "thermocouple," ʻoiai ua kapa ʻia nā metala ʻelua he "thermal electrode," a ʻo ka hopena o ka ikaika electromotive ua kapa ʻia he "thermoelectric motive force." Hōʻike ʻia nā Thermocouples e ko lākou laulā ana wela ākea, ka pane wela wikiwiki, a me ke kūpaʻa haʻalulu ikaika.
2. Ke kū'ē wela
ʻO ke kūpaʻa wela kahi ʻāpana e hoʻololi i kahi hōʻailona mahana i kahi hōʻailona uila, a ʻo kāna kumu hana e pili nui ana i nā ʻano o nā loli kūpaʻa metala me ka mahana. Ma ke ʻano kikoʻī, hoʻohana nā pale wela i kēia waiwai o ka metala e ana i ka mahana.
I ka mana ʻoihana, ʻo nā ʻano pale wela i hoʻohana pinepine ʻia e komo pū me ka platinum, ke keleawe a me ka nickel. I waena o lākou, ʻo ke pale platinum ka mea maʻamau. Loaʻa i ke kūpaʻa wela nā ʻano o ka linearity mahana maikaʻi, ka hana paʻa a me ke kiko kiʻekiʻe ma ke kahua o ka mahana maʻamau. No laila, i ke kaiapuni noi o ka mahana waena, ʻaʻohe haʻalulu a me nā koi kiko kiʻekiʻe, makemake pinepine ʻia ka hoʻohana ʻana i ke kūpaʻa platinum.
3. Thermistor
ʻO ka thermistor kahi ʻāpana e hoʻololi i kahi hōʻailona mahana i kahi hōʻailona uila, a ʻo kāna kumu hana e pili nui ana i nā ʻano o ke kū'ē o ka semiconductor e loli ana me ka mahana. Ma ke ʻano kikoʻī, hoʻohana nā thermistors i kēia waiwai o nā semiconductors e ana i ka mahana. Ke hoʻohālikelike ʻia me ke kū'ē wela, loli nui ke kū'ē o ka thermistor me ka loli o ka mahana, no laila he haiki kona pae ana wela (-50 ~ 350 ℃).
Ua māhele ʻia nā Thermistor i nā thermistors NTC a me nā thermistors PTC. He coefficient mahana maikaʻi ʻole ko nā thermistors NTC, a e emi ana ko lākou waiwai kū'ē i ka piʻi ʻana o ka mahana. He coefficient mahana maikaʻi ko ka thermistor PTC, a e piʻi aʻe kona waiwai kū'ē me ka piʻi ʻana o ka mahana. Ma muli o kona mau ʻano mahana kū'ē kū hoʻokahi, he nui nā noi o ka thermistor i ka ʻike ʻana i ka mahana, ka mana aunoa, nā mea uila a me nā kahua ʻē aʻe.
Ua kūpaʻa ʻo Zhuo Meng Shanghai Auto Co., Ltd. i ke kūʻai aku ʻana i nā ʻāpana kaʻa MG&MAUXS e ʻoluʻolu e kūʻai.
