Resistorsyog dav siv nyob rau hauv hluav taws xob circuits, ua lub luag haujlwm tseem ceeb hauv kev tswj cov kev khiav ntawm hluav taws xob tam sim no. Muaj ntau hom resistors nyob rau hauv kev ua lag luam, thiab tsis hais lawv hom, lawv txhua tus muaj lawv tus kheej qhov kub thiab txias coefficients, uas yog hais tias txhua tus resistor cuam tshuam los ntawm qhov kub thiab txias. Hauv tsab xov xwm no, peb yuav tshawb txog lub tswv yim thiab qhov tseem ceeb ntawm Resistor kub coefficients.
ZENITHSUN lub ntsiab Resistors Hom
Temperature Coefficient ntawm Resistor yog dab tsi?
Qhov kub coefficient ntawm ib tug resistor, denoted los ntawm lub cim α (alpha), qhia yuav ua li cas lub kuj hloov nrog kub. Nws yog feem ntau teev nyob rau hauv seem ib lab ib degree Celsius (ppm / ° C). Muaj ob hom kub coefficients: zoo thiab tsis zoo.
Positive Temperature Coefficient (PTC): Resistors nrog qhov ntsuas kub zoo coefficient pom qhov nce hauv kev tiv thaiv thaum kub nce. Qhov kev coj cwj pwm no muaj nyob rau hauv cov ntaub ntawv uas hluav taws xob conductivity txhim kho nrog kub siab, xws li tej yam hlau oxides.
Negative Temperature Coefficient (NTC): Hauv qhov sib piv, cov resistors nrog qhov kub tsis zoo coefficient muaj qhov txo qis hauv qhov tsis kam vim qhov kub nce. Qhov no feem ntau pom nyob rau hauv semiconductors thiab lwm yam ntaub ntawv uas conductivity txo nrog nce kub.
Resistance Change Rate Raws li Kub (Piv txwv)
Raws li qhov xwm txheej yuav tsum tau ua qhov kub coefficient ntawm aresistorraug txiav txim?
Xav txog qhov kub coefficient ntawm tus resistor feem ntau yog qhov tseem ceeb hauv cov xwm txheej hauv qab no:
1. Ib puag ncig nrog kev hloov pauv kub loj: Yog tias lub tshuab hluav taws xob lossis cov khoom siv hluav taws xob raug cuam tshuam rau qhov kub thiab txias hloov pauv thaum lub sijhawm ua haujlwm, qhov kub coefficient ntawm cov resistor ua qhov tseem ceeb. Nyob rau hauv cov ntaub ntawv no, xaiv ib tug resistor nrog ib tug tsim nyog kub coefficient yuav xyuas kom meej tias lub Circuit Court nyob ruaj khov nyob rau hauv sib txawv kub.
2. Precision circuits: Hauv qee lub voj voog uas xav tau qhov tseem ceeb ntawm kev tiv thaiv, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov xws li kev ntsuas, sensors, thiab precision amplifiers, qhov kub coefficient ntawm resistor yuav tsum tau xav txog. Precision circuits feem ntau yuav tsum tau muab cov khoom tso tawm raug thiab ruaj khov tshaj qhov kub sib txawv.
3. Cov ntawv thov kev lag luam: Hauv qee cov ntawv thov kev lag luam, cov khoom siv yuav raug cuam tshuam los ntawm qhov kub thiab txias ib puag ncig. Nyob rau hauv cov ntaub ntawv no, qhov kub coefficient ntawm tus resistor yog ib qho tseem ceeb tsim parameter los xyuas kom meej tias qhov kev ua tau zoo ntawm Circuit Court tsis cuam tshuam los ntawm kub hloov.
4. Kev them nyiaj kub: Qee daim ntawv thov yuav tsum tau siv cov resistors rau qhov kub thiab txias los xyuas kom meej qhov kev ua haujlwm ntawm lub voj voog nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias. Nyob rau hauv cov ntaub ntawv no, nws yog tsim nyog los xaiv ib tug resistor nrog ib tug tsim nyog kub coefficient.
Kev xaiv kom raug ntawm cov resistors ua kom muaj kev ruaj ntseg thiab kev ua tau zoo ntawm cov tshuab hluav taws xob. Cov kws tsim qauv thiab cov tsim qauv yuav tsum ua tib zoo ntsuas qhov ntsuas kub ntawm cov resistors kom ua tau raws li cov kev cai tshwj xeeb ntawm lawv cov ntawv thov thiab tsim cov kev daws teeb meem hluav taws xob muaj zog thiab txhim khu kev qha.
Thaum xaiv tus resistor, cov ntaub ntawv kub coefficient ntawm tus resistor feem ntau tuaj yeem pom nyob rau hauv daim ntawv qhia tshwj xeeb muab los ntawm cov chaw tsim khoom.
Shenzhen Zenithsun Electronics Tech. Co., Ltd yog tus kws tshaj lijresistorschaw tsim tshuaj paus, muaj 20 xyoo ntawm kev paub, thiab muaj kev engineering pab neeg los pab cov neeg siv xaiv qhov tseeb resistors.
