Yini inzwa yokushisa ye-NTC?

Yini inzwa yokushisa ye-NTC?

Ukuqonda umsebenzi nokusetshenziswa kwe-NTC lokushisa sensor, kufanele siqale sazi ukuthi yiliphi i-NTCH Thermistor.
Ukuthi i-NTC yokushisa inzwa yokushisa isebenza kanjani
Abaqhubi abashisayo noma abaqhubi abafudumele bangabamela ama-elekthronikhi ngama-coefficients angalungile (i-NTC amafushane). Uma kugeleza kwamanje ngezakhi, ukumelana kwazo kuncipha ngokwanda kwamazinga okushisa. Uma izinga lokushisa elizwakalayo lehla (isib. Esimweni sokucwilisa), izingxenye, ngakolunye uhlangothi, ziphendula ngokumelana nokwanda. Ngenxa yalokhu kuziphatha okukhethekile, ochwepheshe futhi babhekisela kumphikisi we-NTC njenge-NTC Thermistor.

Ukumelana nogesi kuyancipha lapho ama-elektroni ahamba
Ama-NTC amelana nawo aqukethe izinto ze-semiconductor, ukuhanjiswa okuvame phakathi kwaleyo yabaqhubi kagesi kanye nabaqhubi bakagesi. Uma izakhi zishisa, ama-elektroni athuthela ama-athomu ama-lattice. Bashiya indawo yabo ekwakhiweni nasekuthuthweni kukagesi kangcono kakhulu. Umphumela: Ngokwenyusa izinga lokushisa, ama-thermitors aqhuba ugesi kangcono kakhulu - ukumelana kukagesi kuncipha. Izakhi zisetshenziswa, phakathi kwezinye izinto, njengezinzwa zokushisa, kepha kulokhu kufanele zixhunywe emthonjeni we-voltage kanye ne-ammeter.

Yenza nezakhiwo zabaqhubi abashisayo nababandayo
Umphikisi we-NTC ungasabela buthaka kakhulu noma, ezindaweni ezithile, ngokuqinile ekushintsheni kwamazinga okushisa okukhona. Ukuziphatha okuqondile ngokuyisisekelo kuncike ekwenziweni kwezakhi. Ngale ndlela, abakhiqizi bavumelanisa isilinganiso sokuxubana se-oxides noma i-doping yensimbi okoxide ezimeni ezifiselekayo. Kepha izakhiwo zezakhi zingathonywa nenqubo yokukhiqiza uqobo. Isibonelo, ngokuqukethwe komoya-mpilo emoyeni wokudubula noma isilinganiso sokulungiselela izakhi.

Izinto ezihlukile ze-NTC Prosser
Izinto ezihlanzekile ze-semicondector, ama-semiconductors ahlanganisiwe noma ama-alloys wensimbi asetshenziselwa ukuqinisekisa ukuthi ama-thermitors akhombisa indlela awo yokuziphatha. Lesi sakamuva sivame ukuba sezinkomo zensimbi (izinhlanganisela zezinsimbi kanye no-oxygen) ka manganese, nickel, cobalt, iron, ithusi noma ithusi noma i-titanium noma i-titanium. Izinto zokwakha zihlanganiswa nama-ejenti okubopha, acindezelwe futhi afakwe. Abakhiqizi bashise izinto ezingavuthiwe ngaphansi kwengcindezi ephezulu ngokwezinga eliphakeme kakhulu lezo zezakhiwo ezifunwayo ezidaliwe.

Izici ezijwayelekile ze-thermistor shazi
Umphikisi we-NTC uyatholakala kumabanga kusuka ku-OHM kuya ku-100 Megohms. Izakhi zingasetshenziswa kusuka kuMnumzane 60 kuya ku-200 degrees Celsius futhi zifinyelele ekubekezeleni kwamaphesenti angu-0,1 kuya kwangama-20. Uma kukhulunywa ngokukhetha i-thermistor, kumele kubhekwe amapharamitha ahlukahlukene. Okunye okubaluleke kakhulu ukumelana nokuhlangana. Kubonisa inani lokumelana endaweni yokushisa enikeziwe (imvamisa engama-25 degrees Celsius) futhi imakwe yi-capital r kanye namazinga okushisa. Isibonelo, u-R25 wenani lokumelana kuma-degree angama-25 Celsius. Ukuziphatha okuthile emazingeni okushisa ahlukahlukene nakho kuyasebenza. Lokhu kungacaciswa ngamatafula, amafomula noma ihluzo futhi kufanele kuhambisane nalo ulwazi olufunayo. Amanani aphezulu abuntu bakwa-NTC amelana nawo ahlobene nokubekezelelana kanye nemikhawulo ethile yokushisa ne-voltage.

Izindawo ezahlukahlukene zesicelo se-NTC Prossor
Njengomvuza we-PTC, umphikisi we-NTC nawo ulungele isilinganiso sokushisa. Inani lokumelana lishintsha ngokuya ngokushisa okukhona. Ukuze ungaqambeki imiphumela, ukuzikhandla kufanele kukhawulelwe ngangokunokwenzeka. Kodwa-ke, ukuzikhandla ngesikhathi sokugeleza kwamanje kungasetshenziselwa ukukhawulela i-inrush yamanje. Ngoba umphikisi we-NTC uyabanda ngemuva kokushintsha amadivaysi kagesi, ukuze ukugeleza okuncane okuningana ekuqaleni. Ngemuva kwesikhathi esithile ekusebenzeni, i-thermistor ishisa phezulu, amaconsi kagesi wokumelana nokugeleza kwamanje. Amadivayisi kagesi afinyelela ukusebenza kwawo okugcwele ngale ndlela ngokubambezeleka okuthile.

Umphikisi we-NTC uqhuba ugesi wamanje kakhulu emazingeni okushisa aphansi. Uma izinga lokushisa elikhona lenyuka, ukumelana kwabaphilayo okuthiwa abaqhumayo okufudumele kuncipha ngokubonakalayo. Ukuziphatha okukhethekile kwezinto ze-semiconductor zingasetshenziswa ngokuyinhloko isilinganiso sokushisa, sokulinganiselwa kwamanje noma ukubambezela i-conty ehlukahlukene