Sensor ea mocheso ea NTC ke eng?

Sensor ea mocheso ea NTC ke eng?

Ho utloisisa ts'ebetso le ts'ebeliso ea sensor ea mocheso oa NTC, re tlameha ho qala ho tseba hore na NTC thermistor ke eng.
Tsela eo sensor ea mocheso oa NTC e sebetsang ka eona e hlalositsoe habonolo feela
Li-conductors tse chesang kapa li-conductor tse futhumetseng ke li-resistors tsa elektronike tse nang le li-coefficients tse mpe tsa mocheso (NTC ka nako e khutšoanyane).Haeba hona joale ho phalla ka likarolo, ho hanyetsa ha bona ho fokotseha ka mocheso o ntseng o eketseha.Haeba mocheso oa tikoloho o theoha (mohlala, ka letsoho la ho qoelisoa), likarolo, ka lehlakoreng le leng, li itšoara ka ho hanyetsa ho eketseha.Ka lebaka la boitšoaro bona bo khethehileng, litsebi li boetse li bua ka mohanyetsi oa NTC e le NTC Thermistor.

Ho hanyetsa motlakase ho fokotseha ha lielektrone li tsamaea
Lihanyetsi tsa NTC li na le lisebelisoa tsa semiconductor, tseo conductivity ea tsona hangata e leng lipakeng tsa li-conductors tsa motlakase le li-non-conductor tsa motlakase.Haeba likarolo li futhumala, lielektrone lia lokoloha ho tloha ho liathomo tsa lattice.Ba siea sebaka sa bona ka har'a sebopeho mme ba tsamaisa motlakase hantle haholo.Phello: Ka mocheso o ntseng o eketseha, li-thermistors li tsamaisa motlakase hantle haholo - ho hanyetsa ha tsona motlakase ho fokotseha.Lisebelisoa li sebelisoa, har'a lintho tse ling, e le lisebelisoa tsa mocheso, empa bakeng sa sena li tlameha ho hokahanngoa le mohloli oa motlakase le ammeter.

Ho etsa le thepa ea li-conductor tse chesang le tse batang
Sehanyetsi sa NTC se ka itšoara ka mokhoa o fokolang haholo kapa, libakeng tse ling, ka matla haholo liphetohong tsa mocheso o tikolohong.Boitšoaro bo khethehileng bo itšetlehile haholo ka ho etsoa ha likaroloana.Ka tsela ena, bahlahisi ba fetola karolelano ea ho kopanya ea oxides kapa doping ea li-oxide tsa tšepe ho ea ka maemo a lakatsehang.Empa thepa ea likarolo e ka boela ea susumetsoa ke mokhoa oa ho etsa lihlahisoa ka boeona.Ka mohlala, ka lintho tse nang le oksijene sepakapakeng se tukang kapa sekhahla sa ho pholisa ka bomong sa lirafshoa.

Lisebelisoa tse fapaneng bakeng sa mohanyetsi oa NTC
Lisebelisoa tse hloekileng tsa semiconductor, li-semiconductors tse kopantsoeng kapa li-alloys tsa tšepe li sebelisoa ho etsa bonnete ba hore li-thermistors li bontša boitšoaro ba tsona.Ea ho qetela hangata e na le li-oxide tsa tšepe (metsoako ea tšepe le oksijene) ea manganese, nickel, cobalt, tšepe, koporo kapa titanium.Lisebelisoa li kopantsoe le li-agent tse tlamang, li hatelloa le ho silafatsoa.Baetsi ba futhumatsa lisebelisoa tse tala tlas'a khatello e phahameng hoo li-workpieces tse nang le thepa e lakatsehang li thehoang.

Litšobotsi tse tloaelehileng tsa thermistor ha u habanya feela
Mohanyetsi oa NTC o fumaneha ka mekhahlelo ho tloha ho ohm e le 'ngoe ho isa ho 100 megohms.Likarolo li ka sebelisoa ho tloha ho 60 ho isa ho tse 200 likhato tsa Celsius 'me li fihlelle maemo a 0.1 ho isa ho 20%.Ha ho tluoa tabeng ea ho khetha thermistor, ho lokela ho nahanoa ka mekhahlelo e fapaneng.E 'ngoe ea bohlokoa ka ho fetisisa ke khanyetso ea lebitso.E bontša boleng ba ho hanyetsa mocheso o fanoeng ka lebitso (hangata ke likhato tse 25 tsa Celsius) 'me e tšoauoa ka capital R le mocheso.Mohlala, R25 bakeng sa boleng ba ho hanyetsa ho likhato tse 25 tsa Celsius.Boitšoaro bo khethehileng lithempereichareng tse fapaneng le bona bo bohlokoa.Sena se ka hlalosoa ka litafole, liforomo kapa lits'oants'o mme se tlameha ho lumellana ka botlalo le ts'ebeliso e lakatsehang.Litšobotsi tse ling tsa lihanyetsi tsa NTC li amana le mamello hammoho le meeli e itseng ea mocheso le motlakase.

Libaka tse fapaneng tsa kopo bakeng sa mohanyetsi oa NTC
Joalo ka sehanyetsi sa PTC, mohanyetsi oa NTC le ona o loketse tekanyo ea mocheso.Boleng ba ho hanyetsa bo fetoha ho itšetlehile ka mocheso o potolohileng.E le hore u se ke ua etsa liphoso tsa liphello, ho futhumatsa ho lokela ho fokotsoa ka hohle kamoo ho ka khonehang.Leha ho le joalo, ho futhumatsa ka boeona nakong ea phallo ea hona joale ho ka sebelisoa ho fokotsa sekhahla sa inrush.Hobane mohanyetsi oa NTC o bata ka mor'a ho bulela lisebelisoa tsa motlakase, e le hore ho phalle hanyane feela qalong.Ka mor'a nako e itseng ea ts'ebetso, thermistor e futhumatsa, ho hanyetsa motlakase ho theoha le ho phalla ho feta hona joale.Lisebelisoa tsa motlakase li finyella ts'ebetso ea tsona e feletseng ka tsela ena ka nako e itseng ea ho lieha.

Mohanyetsi oa NTC o tsamaisa motlakase hampe ho feta mocheso o tlase.Haeba mocheso oa tikoloho o ntse o eketseha, khanyetso ea seo ho thoeng ke li-conductor tse futhumetseng e fokotseha haholo.Boitšoaro bo khethehileng ba likarolo tsa semiconductor bo ka sebelisoa haholo-holo bakeng sa tekanyo ea mocheso, bakeng sa meeli ea hona joale ea inrush kapa bakeng sa ho liehisa liphetoho tse fapaneng.