Yuav ua li cas ntsuas qhov sib thooj hloov nrog multimeter
Qhov sib thooj hloov tau tuaj yeem ntsuas nrog lub multimeter; txoj kev ntsuas kuj yog qhov yooj yim heev, tsuas yog kho nws li kev hloov.
Yog li, cia peb nkag siab tias qhov kev sib thooj no yog dab tsi.
Qhov sib thooj hloov, raws li lub npe qhia, yog qhov hloov pauv uas tsuas yog ua haujlwm thaum "kaw". Qhov sib thooj keyboards yuav tsum tau muab faib ua cov chaw hloov chaw. Qhov sib txawv loj tshaj plaws los ntawm peb cov keyboards mus txawv tebchaws yog qhov sib thooj sib txuas tuaj yeem ua tiav qhov ntsuas qhov ntsuas yam tsis tau kov cov khoom ntsuas.
Hauv luv luv, lub ntsiab lus ntawm qhov sib thooj hloov pauv tseem yog qhov hloov pauv, tab sis txoj hauv kev ua haujlwm ntawm qhov hloov pauv no txawv. Cov kev sib thooj sib thooj tam sim no ntawm kev ua lag luam tuaj yeem muab faib ua pawg hauv qab no:
Photoelectric sib thooj hloov: Los ntawm qhov kev xav ntawm lub teeb, thaum muaj kev cuam tshuam thaiv lub teeb tawm, lub cuab yeej yuav tsim lub teeb liab rau lossis tawm.
Hall sib ze hloov: Tej zaum koj yuav tsis paub ntau txog lo lus Hall. Qhov tseeb, Hall yog ib daim ntawv ntawm Circuit Court. Nws yog rhiab heev rau cov khoom sib nqus. Thaum kuaj pom ib qho khoom sib nqus, lub voj voog uas tsis tuaj yeem ua haujlwm yuav tsim cov kev hloov pauv, thiab tom qab ntawd dhau los ntawm kev hloov pauv hloov mus rau qhov tso tawm cov teeb liab sib xws:
Capacitive sib thooj hloov: Hais txog hom capacitive, txhua tus yuav tsum nkag siab qhov teeb meem ntawm dielectric tas li. Thaum ib yam khoom hla nruab nrab ntawm ob daim hlau ntawm lub capacitor, qhov dielectric tas li yuav hloov, yog li tsim cov teeb liab, uas tom qab ntawd dhau los ntawm Circuit Court. Hloov rau cov zis.
Tom qab peb lub hwj chim hloov qhov sib thooj, peb tseem yuav tsum nkag siab txog nws txoj kev xaim sab hauv. Cia peb coj peb-xaim sib thooj hloov ua piv txwv. Cov phooj ywg uas paub qee qhov kev paub hauv Circuit Court tau yooj yim pom tau tias qhov qhib-tawm ntawm qhov sib thooj hloov mus txuas nrog lub triode. Raws li qhov tshwm sim, thaum lub hauv paus tseem ceeb ntawm qhov sib thooj hloov pauv pom qhov khoom, qhov kev hloov pauv ntawm qhov yuav tshwm sim nyob rau hauv Circuit Court, yog li ntawd ob qhov kawg ntawm cov khoom thauj hauv daim duab hauv qab no tsim lub voj kaw, uas yog, 24V fais fab mov yog. ntxiv rau ob sab ntawm lub load. Qhov no yog qhov tseeb Qhov saum toj no yog txoj hauv kev ua haujlwm ntawm qhov sib thooj hloov.
Thaum peb siv lub multimeter los ntsuas, peb tuaj yeem paub seb qhov sib thooj ntawm qhov sib thooj yog nyob rau lossis tawm los ntawm kev ntsuas qhov voltage ntawm ob sab ntawm lub load.
Thov nco ntsoov ntawm no vim hais tias ntawm cov ntawv sib txawv ntawm qhov sib thooj ntawm cov keyboards, nws tsis paub meej tias qhov kawg ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob sib koom tib tus ncej zoo lossis cov ncej tsis zoo. Kev ntsuas qhov tseeb yuav tsum tau ua raws li peb cov lus qhia khoom.
