I-NTC imele “i-Negative Temperature Coefficient”. Ama-thermistors e-NTC angama-resistors ane-coefficient yezinga lokushisa elibi, okusho ukuthi ukumelana kuncipha ngezinga lokushisa elikhulayo. Yenziwe nge-manganese, i-cobalt, i-nickel, ithusi namanye ama-oxide ensimbi njengezinto eziyinhloko ngenqubo ye-ceramic. Lezi zinto zensimbi ze-oxide zinezakhiwo ze-semiconducting ngoba zifana ngokuphelele nezinto ze-semiconducting ezifana ne-germanium ne-silicon endleleni yokuqhuba ugesi. Okulandelayo yisingeniso sendlela yokusebenzisa nenjongo ye-NTC thermistor kusekethe.
Uma i-thermistor ye-NTC isetshenziselwa ukutholwa kwezinga lokushisa, ukuqapha noma isinxephezelo, ngokuvamile kuyadingeka ukuxhuma isiphikisayo ochungechungeni. Ukukhethwa kwenani lokumelana kunganqunywa ngokuya ngendawo yokushisa edinga ukutholwa kanye nenani lokugeleza kwamanje. Ngokuvamile, i-resistor enevelu efanayo nokumelana okujwayelekile kwezinga lokushisa kwe-NTC izoxhunywa ochungechungeni, futhi yamanje egelezayo iqinisekiswa ukuthi incane ngokwanele ukuze igweme ukuzishisisa futhi ithinte ukunemba kokutholakala.Isiginali etholiwe iyingxenye. I-voltage ku-thermistor ye-NTC. Uma ufuna ukuthola ijika eliqondile phakathi kwe-voltage eyingxenye nezinga lokushisa, ungasebenzisa isekethe elandelayo:
Ukusetshenziswa kwe-NTC thermistor
Ngokwesici se-coefficient engalungile ye-NTC thermistor, isetshenziswa kabanzi kulezi zimo ezilandelayo:
1. Isinxephezelo sezinga lokushisa lama-transistors, ama-IC, ama-crystal oscillator emishini yokuxhumana yeselula.
2. Inzwa Yezinga lokushisa Yamabhethri Ashajwa kabusha.
3. Isinxephezelo Sezinga Lokushisa se-LCD.
4. Isinxephezelo sezinga lokushisa nezinzwa zemishini yomsindo wemoto (CD, MD, tuner).
5. Isinxephezelo sezinga lokushisa samasekethe ahlukahlukene.
6. Ukucindezelwa kwe-inrush current ekushintsheni ukunikezwa kwamandla kanye nesekethe yamandla.
Izinyathelo zokuphepha zokusetshenziswa kwe-NTC thermistor
1. Naka izinga lokushisa elisebenzayo le-NTC thermistor.
Ungalokothi usebenzise i-thermistor ye-NTC ngaphandle kwebanga lokushisa elisebenzayo. Izinga lokushisa lokusebenza lochungechunge lwe-φ5, φ7, φ9, no-φ11 ngu -40~+150℃; izinga lokushisa lokusebenza lochungechunge lwe-φ13, φ15, kanye no-φ20 ngu -40~+200℃.
2. Sicela uqaphele ukuthi ama-thermistors e-NTC kufanele asetshenziswe ngaphansi kwezimo zamandla alinganisiwe.
Amandla amakhulu alinganiselwe encazelo ngayinye yile: φ5-0.7W, φ7-1.2W, φ9-1.9W, φ11-2.3W, φ13-3W, φ15-3.5W, φ20-4W
3. Izinyathelo zokuphepha zokusetshenziswa ezindaweni ezishisayo nezinomswakama ophezulu.
Uma i-thermistor ye-NTC idinga ukusetshenziswa endaweni yokushisa ephezulu kanye nemvelo yomswakama ophezulu, i-thermistor yohlobo lwe-sheath kufanele isetshenziswe futhi ingxenye evaliwe ye-sheath yokuzivikela kufanele ivezwe endaweni ezungezile (amanzi, umswakama), kanye nengxenye yokuvula ye-sheath. ngeke ihlangane ngqo namanzi nesitimu.
4. Ayikwazi ukusetshenziswa kugesi eyingozi, endaweni ewuketshezi.
Ungayisebenzisi endaweni yegesi eyonakalisayo noma endaweni lapho izohlangana khona nama-electrolyte, amanzi anosawoti, ama-asidi, ama-alkali, nezinyibilikisi eziphilayo.
5. Vikela izintambo.
Ungazeluli ngokweqile futhi ugobe izintambo futhi ungasebenzisi ukudlidliza ngokweqile, ukushaqeka nokucindezela.
6. Gcina kude nezinto zikagesi eziphehla ukushisa.
Gwema ukufaka izingxenye ze-elekthronikhi ezijwayele ukushisa eduze kwe-thermistor yamandla e-NTC, Kunconywa ukuthi usebenzise imikhiqizo enemikhondo ephezulu engxenyeni engenhla yonyawo olugobile, futhi usebenzise i-NTC thermistor ukuze ibe phezulu kunezinye izingxenye ebhodini lesekethe ukuze ugweme ukushisa. okuthinta ukusebenza okuvamile kwezinye izingxenye.
Isikhathi sokuthumela: Jul-28-2022