Mathermistors anosanganisira positive tembiricha coefficient (PTC) uye negative tembiricha coefficient (NTC) thermistors, uye yakaoma tembiricha thermistors (CTRS).
1.PTC thermistor
Iyo Positive Temperature CoeffiCient (PTC) chiitiko che thermistor kana zvinhu zvine tembiricha yakanaka coefficient uye kuwedzera kwakanyanya kwekupokana pane imwe tembiricha. Inogona kushandiswa seyagara tembiricha sensor. Izvo zvinhu muviri wakasimwa une BaTiO3, SrTiO3 kana PbTiO3 sechinhu chikuru, uye zvakare inowedzera maokisi eMn, Fe, Cu uye Cr ayo anowedzera kunaka kwekupokana tembiricha coefficient uye zvimwe zvinowedzera zvinotamba mamwe mabasa. Izvo zvinhu zvinoumbwa neyakajairwa ceramic maitiro uye yakanyungudutswa pakupisa kwepamusoro kugadzira platinamu titanate uye mhinduro yayo yakasimba semi-conductive. Saka zvinhu zve thermistor zvine maitiro akanaka zvinowanikwa. Iyo tembiricha coefficient uye Curie point tembiricha inosiyana nekuumbwa uye sintering mamiriro (kunyanya kupisa kwekutonhora).
PTC thermistor yakaonekwa muzana ramakore rechi20, PTC thermistor inogona kushandiswa kuyera tembiricha uye kutonga muindasitiri, inoshandiswawo kuona tembiricha uye kudzora chikamu chemotokari, asiwo nhamba huru yemidziyo yevagari, senge kutonga kweiyo. instant water hita tembiricha yemvura, air conditioner uye kutonhora kwekuchengetedza tembiricha, kushandiswa kwekudziya kwayo yega gasi kuongororwa uye anemometer uye zvimwe zvinhu.
PCT thermistor ine basa rekuchengetedza tembiricha mune yakatarwa siyana, uye zvakare inoita basa rekuchinja. Uchishandisa iyi tembiricha yekudzivirira hunhu senzvimbo yekudziya, inogona zvakare kuita basa rekudzivirira kupisa kwemidziyo yemagetsi.
2.NTC thermistor
Negative Temperature CoeffiCient (NTC) inoreva chiitiko che thermistor uye zvinhu zvine tembiricha isina kunaka nekuti kupikisa kunodzikira zvakanyanya sezvo tembiricha inokwira. Izvo zvinhu ndeye semiconducting ceramic yakagadzirwa neaviri kana anopfuura esimbi oxides senge manganese, mhangura, silicon, cobalt, iron, nickel, uye zinc, iyo yakanyatso kusanganiswa, kuumbwa, uye sintered kugadzira thermistor ine negative tembiricha coefficient (NTC). )
Nhanho yekuvandudza yeNTC thermistor: kubva pakuwanikwa kwayo muzana ramakore rechi 19 kusvika pakukura kwayo muzana ramakore rechi 20, ichiri kugadziriswa.
Iyo chaiyo ye thermistor thermometer inogona kusvika 0. 1 ℃, uye tembiricha inonzwa nguva inogona kuva isingasviki gumi. Haisi chete yakakodzera kune granary thermometer, asi zvakare inogona kushandiswa mukuchengetedza chikafu, mushonga uye hutano, kurima kwesainzi, gungwa, yakadzika tsime, yakakwirira urefu, glacier tembiricha kuyerwa.
3.CTR thermistor
Critical Temperature Thermistor CTR (Critical Temperature Resistor) ine hunhu hwakashata hwekuramba shanduko, pane imwe tembiricha, kushomeka kunoderera zvakanyanya nekuwedzera kwekushisa uye kune hombe yekushisa yakashata coefficient. Iyo yekuumbwa zvinhu ndeye vanadium, barium, strontium, phosphorus uye zvimwe zvinhu zveyakasanganiswa sintered body, is semi-girazi semiconductor, inozivikanwawo seCTR yegirazi thermistor. CTR inogona kushandiswa senge tembiricha yekudzora alarm uye mamwe maapplication.
Thermistor inogona zvakare kushandiswa seyemagetsi redhisheni chinhu kune chiridzwa chedunhu tembiricha muripo uye tembiricha muripo weiyo thermocouple inotonhora kupera. Otomatiki kuwana kutonga kunogona kuitika kuburikidza nekushandisa iyo yekuzvipisa hunhu hweNTC thermistor, uye iyo amplitude kudzikamisa wedunhu, kunonoka dunhu uye kudzivirira dunhu reRC oscillator inogona kuvakwa. PTC thermistor inonyanya kushandiswa mumidziyo yemagetsi inopisa kudzivirira, isingabatike relay, inogara tembiricha, otomatiki kuwana kutonga, mota kutanga, kunonoka nguva, ruvara TV otomatiki dhizagi, moto alarm uye tembiricha muripo, nezvimwe.
Nguva yekutumira: Jan-16-2023