1. Thermistor ke mohanyetsi o entsoeng ka thepa e khethehileng, 'me boleng ba eona ba ho hanyetsa bo fetoha ka mocheso. Ho ea ka coefficient e fapaneng ea phetoho ea khanyetso, li-thermistors li arotsoe ka mekhahlelo e 'meli:
Mofuta o mong o bitsoa positive mocheso coefficient thermistor (PTC), eo boleng ba eona ba ho hanyetsa bo eketsehang ka mocheso;
Mofuta o mong o bitsoa Negative Temperature Coefficient Thermistor (NTC), eo boleng ba eona ba ho hanyetsa bo fokotsehang ka mocheso o ntseng o eketseha.
2. Thermistor molao-motheo oa ho sebetsa
1) Positive mocheso coefficient thermistor (PTC)
PTC ka kakaretso e entsoe ka titanate ea barium e le eona ntho e ka sehloohong, 'me palo e nyane ea lintho tse sa tloaelehang tsa lefats'e li eketsoa ho barium titanate,' me e entsoe ka mocheso o phahameng oa sintering. Barium titanate ke thepa ea polycrystalline. Ho na le sebopeho sa kristale ea phatsa lipakeng tsa kristale e kahare le kristale. Ha mocheso o le tlase, li-electrone tsa conductive li ka tšela sebopeho sa likaroloana habonolo ka lebaka la sebaka sa motlakase se ka hare. Ka nako ena, boleng ba eona ba ho hanyetsa E tla ba nyenyane. Ha mocheso o phahama, sebaka sa motlakase se ka hare se tla senyeha, ho thata hore li-electrone tsa conductive li tšele sebopeho sa likaroloana, 'me boleng ba ho hanyetsa bo tla phahama ka nako ena.
2) Mocheso o mobe oa coefficient thermistor (NTC)
NTC hangata e entsoe ka thepa ea tšepe ea oxide e kang cobalt oxide le nickel oxide. Mofuta ona oa oxide ea tšepe o na le li-electrone tse fokolang le masoba, 'me boleng ba eona ba ho hanyetsa bo tla ba bo phahameng. Ha mocheso o phahama, palo ea li-electrone le masoba ka hare e tla eketseha 'me boleng ba ho hanyetsa bo tla fokotseha.
3. Melemo ea thermistor
Kutloelo-bohloko e phahameng, mocheso oa mocheso oa mocheso oa mocheso o fetang makhetlo a 10-100 ho feta oa tšepe, 'me o khona ho lemoha liphetoho tsa mocheso oa 10-6 ℃; mefuta e mengata ea mocheso oa mocheso, lisebelisoa tse tloaelehileng tsa mocheso li loketse -55 ℃ ~ 315 ℃, lisebelisoa tse phahameng tsa mocheso li loketse mocheso Ka holimo ho 315 ℃ (hona joale e phahameng ka ho fetisisa e ka fihla ho 2000 ℃), mochine oa mocheso o tlaase o loketse -273 ℃ ~ -55 ℃; e nyenyane ka boholo ’me e khona ho lekanya mocheso oa sebaka seo li-thermometer tse ling li ke keng tsa le lekanya
4. Kopo ea thermistor
Tšebeliso e ka sehloohong ea thermistor ke ntho ea ho lemoha mocheso, 'me ho lemoha mocheso hangata ho sebelisa thermistor e nang le coefficient e mpe ea mocheso, ke hore, NTC. Ka mohlala, lisebelisoa tsa ka tlung tse atisang ho sebelisoa, tse kang liapehi tsa raese, li-induction cooker, joalo-joalo, kaofela li sebelisa li-thermistors.
Nako ea poso: Nov-06-2024