Enye yezinhlobo ezijwayelekile kakhulu zokushisa kwezimakethe emakethe yi-thermistor, inguqulo encishisiwe "yokumelene nomoya." Ama-thermistors azinzwa izindleko eziphansi kakhulu ezinamandla kakhulu futhi ezinamandla. I-thermistor iyinzwa yokushisa yokuzikhethela kwezicelo ezidinga ukuzwela okukhulu nokuchithwa okuhle. Ama-thermistors anqunyelwe kuhlelo lokusebenza olubanzi lokusebenza lokushisa lokushisa ngenxa yokuphendula okungezona okulinganiselwe kokushisa.
Ukwakhiwa
Ama-thermistors ayingxenye emibili yocingo eyenziwe nge-oxide ensimbi ene-sintered etholakala ezinhlotsheni eziningi zephakheji ukusekela izinhlelo ezihlukahlukene. Iphakheji evamile kakhulu ye-thermistor i-glass bead encane enobubanzi buka-0.5 kuya ku-5mm ngezintambo ezimbili. Ama-thermistors nawo atholakalayo emaphakheji angenakuphakama, ama-disks, futhi afakwe emathini ensimbi we-tubular. Ama-thermistors we-glass beer are really rugged and robust, nemodi ehluleka kakhulu yokuhluleka kuba umonakalo ohlangothini lwezintambo ezimbili. Kodwa-ke, ngezinhlelo zokusebenza ezidinga izinga elikhulu lokugqoka, ithubhu yensimbi ihlola ukuthi izitayela zokushisa zinikeza ukuvikelwa okukhulu.
Izinzuzo
Ama-thermistors anezinzuzo ezimbalwa, kufaka phakathi ukunemba, ukuzwela, ukuzinza, isikhathi esheshayo sokuphendula, ama-electronics alula, nezindleko eziphansi. Isifunda esibhekene ne-thermistor singaba lula njenge-resist-up resistor kanye nokulinganisa umthamo we-thermistor. Kodwa-ke, ukuphendula kwama-thermistors ekushiseni akuyona okungavamile futhi kuvame ukubhekwa ebangeni elincane lokushisa okulinganiselwe ukunemba kwabo efasiteleni elincane ngaphandle kokuthi amasu okuhlukanisa noma amanye amasu okubuyisela asetshenzisiwe. Impendulo engezona elungile eyenza abashayeli bezimoto bazwele kakhulu ekushintsheni kokushisa. Futhi, ubukhulu obuncane nobuningi be-thermistor banika inqwaba encane yokushisa evumela ukuthi i-thermistor iphendule ngokushesha ekushintsheni kokushisa.
Ukuziphatha
Ama-thermistors atholakala nge-coefficient engalungile noma enhle (NTC noma i-PTC). I-thermistor enezinga eliphansi lokushisa lokushisa liba lula kakhulu njengoba izinga lokushisa likhuphuka ngenkathi i-thermistor enezinga eliphansi lokushisa likhuphuka ekumeni njengoba izinga lokushisa kwalo landa. Ama-thermistors e-PTC avame ukusetshenziswa kuchungechunge ngezingxenye lapho ukuqhutshwa kwamanje kungabangela umonakalo. Njengengxenye yokuvuselela, lapho okwamanje kugijima kubo, ama-thermistors enza ukushisa okwenza ushintsho ekumeni. Njengoba amathemitha afuna ukuthi umthombo wamanje noma umthamo wamandla wokusebenza usebenze, ukuzishisa ukushintsha ukuguquka kokuguquguquka kuyinto engenakugwenywa nama-thermistors. Ezimweni eziningi, imiphumela yokuzifudumala yinto encane futhi isinxephezelo sidinga kuphela uma kudingekile ukunemba okuphakeme.
Izindlela Zokusebenza
Ama-thermistors asetshenziselwa izindlela ezimbili zokusebenza ngaphesheya kokumelana nokumelana nokushisa kwemodi yokushisa. Imodi ye-voltage-vs-current isebenzisa i-thermistor esimweni sokuzifudumala, esimweni sombuso. Le modi ivame ukusetshenziswa kumamitha ogeleza lapho ukuguqulwa kokugeleza kwamanzi okugeleza kuyo yonke i-thermistor kuzokwenza ushintsho emandleni luhlakazwe yi-thermistor, ukumelana kwalo, namanje noma amavutha kuye ngokuthi kuqhutshwa kanjani. I-thermistor ingasetshenziswa futhi kumodi yesikhathi samanje lapho i-thermistor ingaphansi kwamanje. I-current izokwenza ukuthi i-thermistor ibe yukuzifudumala, ikhulise ukumelana uma kwenzeka i-NTC ishushumbisa futhi ivikela isifunda kusuka ku-spike high spike. Ngaphandle kwalokho i-PTC thermistor kulesi sicelo esifanayo ingasetshenziswa ukuvikela kusuka ekuphakameni okuphezulu kwamanje.
Izicelo
Ama-thermistors anezinhlobonhlobo zezicelo, okuvame kakhulu ukuzwa ukushisa okuqondile nokucindezela ukukhuphuka. Izici ze-NTC ne-PTC thermistors ziboleka ezenzweni ezifaka:
- Izinkomba zezinga le-Liquid
- isinxephezelo sokushisa
- Isilinganiso sokugeleza
- Vala amaGages
- Ukuvikelwa Kwemvelo
- Ampifier Gain Control
- Imijikelezo Yesikhashana Yokulahla
- Ukushisa Okushisa
Ukukhipha
Ngenxa yempendulo engavumelekile yamathemishri, izijikelezo zokuqhathanisa zivame ukudingeka ukuze zinikeze ngokunemba okuhle kuwo wonke amazinga okushisa. Ukusabela okungezona okulinganayo kokushisa kwe-thermistor kunikelwa yi-equinhart-Hart equation ephikisana kahle nokushisa kwamazinga okushisa. Kodwa-ke, ukungafani okungahambisani nomphumela kubangelwa ukunemba okungafanele emisebenzini ngaphandle kokuthi ukuguqulwa okuphezulu kwe-analog kuya kokuguqulwa kwedijithali kuyasetshenziswa. Ukusebenzisa i-linearization elula ye-hardware ye-parallel, uchungechunge, noma ukufana nokulandelana komshini ne-thermistor kuthuthukisa kakhulu ukulingana kwempendulo ye-thermistors futhi kwandisa iwindi lokushisa lokusebenza kwe-thermistor ngezindleko zokunemba okuqondile. Amanani okumelana asetshenziselwa izijikelezo zokudidiyela kufanele akhethwe ukubeka iwindi lokushisa ukuze liphumelele.