Hoʻokomo ʻia nā mea hoʻomaʻamaʻa wela maikaʻi (PTC) a me nā mea wela maikaʻi ʻole (NTC), a me nā wela wela koʻikoʻi (CTRS).
1.PTC thermistor
ʻO ka Positive Temperature CoeffiCient (PTC) he mea thermistor a i ʻole mea i loaʻa ke koena wela maikaʻi a me ka piʻi ʻana o ke kūʻē ʻana i kekahi wela.Hiki ke hoʻohana ʻia e like me ka ʻike wela mau.He kino sintered ka mea me BaTiO3, SrTiO3 a i ʻole PbTiO3 ma ke ʻano he mea nui, a hoʻohui pū i nā oxides o Mn, Fe, Cu a me Cr e hoʻonui ai i ka coefficient mahana pale maikaʻi a me nā mea hoʻohui ʻē aʻe e pāʻani ana i nā kuleana ʻē aʻe.Hoʻokumu ʻia ka mea e ka hana seramika maʻamau a sintered i ka wela kiʻekiʻe e hana i ka platinum titanate a me kāna hopena paʻa semi-conductive.No laila, loaʻa nā mea thermistor me nā ʻano maikaʻi.ʻOkoʻa ka helu wela a me ka mahana o ka Curie me ke ʻano o ka haku mele ʻana a me nā kūlana sintering (ʻoi aku ka mahana hoʻomaha).
Ua ʻike ʻia ka thermistor PTC i ke kenekulia 20, hiki ke hoʻohana ʻia ka thermistor PTC no ke ana ʻana o ka mahana a me ka mālama ʻana i ka ʻoihana, hoʻohana ʻia no ka ʻike wela a me ka hoʻoponopono ʻana i kahi ʻāpana o ke kaʻa, akā he nui nā lako kīwila, e like me ka mana o ka ʻO ka mahana wela o ka wai hoʻomehana wai, ka ea a me ka mahana mālama anuanu, ka hoʻohana ʻana i kāna hoʻomehana ponoʻī no ka loiloi kinoea a me ka anemometer a me nā mea ʻē aʻe.
ʻO ka PCT thermistor ka hana o ka mālama ʻana i ka mahana ma kahi kikoʻī kikoʻī, a ke pāʻani nei hoʻi i ke kuleana o ka hoʻololi.Ke hoʻohana nei i kēia ʻano pale wela ma ke ʻano he kumu hoʻomehana, hiki iā ia ke pāʻani i ke kuleana o ka pale wela wela no nā mea uila.
2. NTC thermistor
ʻO ka Coefficient Temperature Negative (NTC) e pili ana i kahi ʻano thermistor a me nā mea i loaʻa i kahi koena wela maikaʻi ʻole ma muli o ka emi ʻana o ke kūpaʻa i ka piʻi ʻana o ka wela.ʻO ka mea he semiconducting ceramic i hana ʻia me ʻelua a ʻoi aku paha nā mea metala e like me ka manganese, copper, silicon, cobalt, iron, nickel, a me ka zinc, i hui pū ʻia, hana ʻia, a sintered e hana i kahi thermistor me kahi koena wela maikaʻi ʻole (NTC). ).
ʻO ka pae hoʻomohala o NTC thermistor: mai kona ʻike ʻia ʻana i ke kenekulia 19 a hiki i kona hoʻomohala ʻana i ke kenekulia 20, ke hoʻomaʻamaʻa ʻia nei.
ʻO ka pololei o ka thermometer thermistor hiki ke piʻi i ka 0. 1 ℃, a hiki ke emi ka manawa ʻike wela ma mua o 10s.ʻAʻole kūpono ia no ka thermometer granary, akā hiki ke hoʻohana ʻia i ka mālama ʻana i ka meaʻai, ka lāʻau lapaʻau a me ke olakino, ka mahiʻai ʻepekema, ka moana, ka luawai hohonu, ke kiʻekiʻe kiʻekiʻe, ke ana wela glacier.
3.CTR thermistor
Loaʻa i ka Critical Temperature Thermistor CTR (Critical Temperature Resistor) kahi ʻano hoʻololi kūʻē kūʻē kūʻē, i kekahi ʻano wela, e emi nui ke kū'ē me ka piʻi ʻana o ka mahana a loaʻa kahi koena wela maikaʻi ʻole.ʻO ka mea haku mele he vanadium, barium, strontium, phosphorus a me nā mea ʻē aʻe o ke kino sintered hui ʻia, he semiconductor semi-glassy, ʻike ʻia ʻo CTR no ka thermistor aniani.Hiki ke hoʻohana ʻia ʻo CTR ma ke ʻano he ala hoʻomalu wela a me nā noi ʻē aʻe.
Hiki ke hoʻohana ʻia ka Thermistor ma ke ʻano he mea uila uila no ka uku ʻana i ka wela kaapuni a me ka uku wela o ka wela wela thermocouple.Hiki ke ʻike ʻia ka mana o ka loaʻa ʻana ma ka hoʻohana ʻana i ka ʻano wela wela o ka NTC, a hiki ke kūkulu ʻia ka amplitude stabilization circuit, lohi kaapuni a me ka pale o ka RC oscillator.Hoʻohana nui ʻia ka PTC thermistor i nā lako uila overheating pale, contactless relay, ka wela mau, ka mana o ka loaʻa ʻana, ka hoʻomaka ʻana o ka kaʻa, ka manawa lōʻihi, ka demagging maʻamau TV kala, ke ahi ahi a me ka uku wela, etc.
Ka manawa hoʻouna: Jan-16-2023