1. Thermistor inopikisa yakagadzirwa nechinhu chakakosha, uye kukosha kwayo kwekudzivirira kunoshanduka nekushisa. Zvinoenderana neyakasiyana coefficient yekuramba shanduko, thermistors yakakamurwa kuita mapoka maviri:
Imwe mhando inonzi yakanaka tembiricha coefficient thermistor (PTC), iyo inopikisa kukosha kwayo kunowedzera nekupisa;
Imwe mhando inodaidzwa kuti Negative Temperature Coefficient Thermistor (NTC), iyo yekudzivirira kukosha kwayo inodzikira nekuwedzera tembiricha.
2. Thermistor kushanda musimboti
1) Positive tembiricha coefficient thermistor (PTC)
PTC inowanzo gadzirwa ne barium titanate sechinhu chikuru, uye chidimbu chidiki chezvinhu zvisingawanzo pasi zvinowedzerwa kune barium titanate, uye inogadzirwa nepamusoro tembiricha sintering. Barium titanate ndeye polycrystalline zvinhu. Iko kune crystal particle interface pakati pekiristaro yemukati nekristaro. Kana tembiricha yadzikira, maelectronic conductive anogona kuyambuka zviri nyore particle interface nekuda kwemunda wemagetsi wemukati. Panguva ino, kukosha kwayo kwekupikisa Kuchava kuduku. Kana tembiricha yakwira, munda wemagetsi wemukati unoparadzwa, zvinonetsa kuti maelectronic conductive ayambuke particle interface, uye kukosha kwekupikisa kuchakwira panguva ino.
2) Negative tembiricha coefficient thermistor (NTC)
NTC inowanzo gadzirwa nesimbi oxide zvinhu zvakaita secobalt oxide uye nickel oxide. Iyi mhando yesimbi okisidhi ine maerekitironi mashoma nemakomba, uye kukosha kwayo kwekudzivirira kuchave kwakakwira. Kana tembiricha yakwira, huwandu hwemaerekitironi nemaburi mukati huchawedzera uye kukosha kwekupikisa kunoderera.
3. Zvakanakira thermistor
Kunzwa kwakanyanya, iyo tembiricha coefficient ye thermistor yakakura kupfuura 10-100 nguva yakakura kupfuura yesimbi, uye inogona kuona shanduko yekushisa ye10-6 ℃; yakafara yekushanda tembiricha renji, yakajairika tembiricha michina inokodzera -55 ℃ ~ 315 ℃, yakakwirira tembiricha michina inokodzera tembiricha Pamusoro pe315 ℃ (ikozvino iyo yepamusoro inogona kusvika 2000 ℃), iyo yakaderera-tembiricha mudziyo wakakodzera -273 ℃ ~ -55 ℃; idiki muhukuru uye inokwanisa kuyera tembiricha yenzvimbo iyo mamwe mathermometer asingagoni kuyerwa
4. Kushandiswa kwe thermistor
Iko kushandiswa kukuru kwe thermistor sechinhu chekutarisa tembiricha, uye kuona tembiricha kunowanzo shandisa thermistor ine yakashata tembiricha coefficient, kureva, NTC. Semuyenzaniso, midziyo yemumba inowanzo shandiswa, yakadai semabiki emupunga, induction cookers, nezvimwewo, zvese zvinoshandisa thermistors.
Nguva yekutumira: Nov-06-2024