Ama-Thermitors Amathathu Ahlukaniswe Uhlobo Lwezinga Lokushisa

Ama-thermistors ahlanganisa i-positive temperature coefficient (PTC) kanye ne-negative temperature coefficient (NTC) thermistors, nama-critical temperatures thermistors (CTRS).

1.PTC thermistor

I-Positive Temperature CoeffiCient (PTC) isenzakalo se-thermistor noma into ene-coefficient yezinga lokushisa elihle kanye nokwenyuka okubukhali kokumelana nezinga lokushisa elithile. Ingasetshenziswa njengenzwa yokushisa engashintshi. Impahla ingumzimba ohlanganisiwe one-BaTiO3, i-SrTiO3 noma i-PbTiO3 njengengxenye eyinhloko, futhi ingeza ama-oxide we-Mn, Fe, Cu kanye ne-Cr akhuphula izinga lokushisa eliphozithivu lokumelana nezinye izithasiselo ezidlala ezinye izindima. Izinto ezisetshenziswayo zakhiwa inqubo evamile ye-ceramic futhi zifakwe emanzini ekushiseni okuphezulu ukwenza i-platinum titanate kanye nesisombululo sayo esiqinile se-semi-conductive. Ngakho-ke kutholakala izinto zokwakha ze-thermistor ezinezici ezinhle. I-coefficient yezinga lokushisa kanye nezinga lokushisa lephoyinti le-Curie liyahlukahluka ngokuya ngokwakheka nezimo ze-sintering (ikakhulukazi izinga lokushisa lokupholisa).

I-PTC thermistor yavela ngekhulu lama-20, i-PTC thermistor ingasetshenziselwa ukulinganisa izinga lokushisa nokulawula embonini, futhi isetshenziselwe ukuthola izinga lokushisa nokulawula ingxenye yemoto, kodwa futhi nenani elikhulu lemishini yomphakathi, njengokulawula osheshayo amanzi heater amanzi izinga lokushisa, air conditioner kanye lokushisa isitoreji esibandayo, ukusetshenziswa ukuzifudumeza yayo ukuhlaziya igesi kanye anemometer kanye nezinye izici.

I-PCT thermistor inomsebenzi wokugcina izinga lokushisa ebangeni elithile, futhi idlala indima yokushintsha. Ukusebenzisa lesi sici sokumelana nezinga lokushisa njengomthombo wokushisa, kungase futhi kudlale indima yokuvikela ukushisa ngokweqile kwezinto zikagesi.

2.NTC thermistor

I-Negative Temperature CoeffiCient (NTC) ibhekisela esimweni se-thermistor kanye nokokusebenza okune-coefficient yezinga lokushisa elibi ngenxa yokuthi ukumelana kuncipha kakhulu njengoba izinga lokushisa likhuphuka. Izinto ezibonakalayo ziyi-ceramic ye-semiconducting eyenziwe ngama-oxide ensimbi amabili noma ngaphezulu njenge-manganese, ithusi, i-silicon, i-cobalt, i-iron, i-nickel, ne-zinc, exutshwe ngokugcwele, yakheka, futhi yafakwa i-sintered ukukhiqiza i-thermistor ene-coefficient yezinga lokushisa elibi (NTC). ).

Isigaba sokuthuthukiswa kwe-NTC thermistor: kusukela ekutholakaleni kwayo ekhulwini le-19 kuya ekuthuthukisweni kwayo ekhulwini lama-20, isapheleliswa.

Ukunemba kwethemometha ye-thermistor kungafinyelela ku-0. 1℃, futhi isikhathi sokuzwa izinga lokushisa singaba ngaphansi kwama-10s. Ayifanelekile kuphela i-thermometer ye-granary, kodwa futhi ingasetshenziswa ekugcineni ukudla, imithi kanye nempilo, ukulima kwesayensi, ulwandle, umthombo ojulile, ukuphakama okuphezulu, ukulinganisa izinga lokushisa kweqhwa.

3.CTR thermistor

I-Critical Temperature Thermistor CTR (I-Critical Temperature Resistor) inesici esingalungile sokumelana nokuguqulwa, ekushiseni okuthile, ukumelana kwehla kakhulu ngokunyuka kwezinga lokushisa futhi kune-coefficient enkulu yokushisa engalungile. Impahla yokuqamba i-vanadium, i-barium, i-strontium, i-phosphorus nezinye izakhi zomzimba oxutshwe ne-sintered, i-semiconductor eyingilazi, eyaziwa nangokuthi i-CTR ye-glass thermistor. I-CTR ingasetshenziswa njenge-alamu yokulawula izinga lokushisa nezinye izinhlelo zokusebenza.

I-Thermistor ingasetshenziswa futhi njengento yesekethe ye-elekthronikhi yesinxephezelo sezinga lokushisa lesekhethi yensimbi nesinxephezelo sezinga lokushisa sokuphela okubandayo kwe-thermocouple. Ukulawula ukuzuza okuzenzakalelayo kungenziwa ngokusebenzisa isici sokuzifudumeza se-NTC thermistor, kanye nesekethe yokuqiniswa kwe-amplitude, ukulibaziseka kwesekethe kanye nesekethe yokuvikela ye-RC oscillator ingakhiwa. I-PTC thermistor isetshenziswa kakhulu ekuvikelweni kokushisisa ngokweqile kwemishini kagesi, ukudluliswa kocingo ngaphandle kokuthinta, izinga lokushisa elingaguquki, isilawuli sokuzuza okuzenzakalelayo, ukuqala kwemoto, ukubambezeleka kwesikhathi, ukulimaza okuzenzakalelayo kwe-TV ngombala, i-alamu yomlilo nesinxephezelo sezinga lokushisa, njll.