Ib qho yooj yim tsom xam ntawm lub hauv paus ntsiab lus ntawm lub buzzer iav ntawm digital multimeter
Kev ntsuas tsis kam, capacitance, thiab relays tsis siv lub beep txoj hauj lwm ntawm lub multimeter. Lub beep txoj hauj lwm ntawm digital multimeter tsuas yog ib txoj hauj lwm rau kev ntsuas qhov txuas ntxiv ntawm txoj kab, thaum ntsuas kev tiv thaiv yuav tsum tau siv cov kev tiv thaiv. Cov iav tiv thaiv yog xav tau, thiab ntau lub zog ua lawv txoj haujlwm, tsis yog tsuas yog cov iav buzzer siv rau kev ntsuas.
Lub buzzer iav ntawm cov digital multimeter tau paub los ntawm kev koom tes ntawm cov iav tiv thaiv thiab lub buzzer tsav Circuit Court. Nyob rau hauv cov iav no, thaum qhov kev tawm tsam tsawg dua li ib qho nqi (feem ntau yog 50Ω), lub buzzer yuav suab, thiab lub buzzer yuav suab thaum nws ntau dua qhov nqi no. Tsis muaj suab yuav raug tsim.
Thaum tus nqi tsis kam ntawm cov kab ntsuas tsawg dua li qee tus nqi, lub peev xwm ntawm inverting input davhlau ya nyob twg ntawm tus sib piv yog rub, lub peev xwm ntawm qhov tsis-inverting input davhlau ya nyob twg yog ntau dua li lub peev xwm ntawm qhov rov qab input davhlau ya nyob twg, thiab tus sib piv outputs ib theem siab, yog li tsav lub buzzer mus rau suab, thaum thaum lub ntsuas kuj yog ntau tshaj ib tug tej yam nqi, lub peev xwm ntawm qhov rov qab input davhlau ya nyob twg yog ntau tshaj qhov uas tsis yog-inverting input davhlau ya nyob twg, lub comparator outputs ib tug tsawg. theem, thiab lub buzzer tsis suab.
Txij li thaum lub buzzer txoj hauj lwm ntawm lub ntsuas hluav taws xob qhia tau hais tias tus nqi tsis kam, nws tuaj yeem ntsuas qhov tsis kam ntawm tus nqi me me, xws li qhov tsis kam ntawm 0Ω thiab ntau pua Ω, thiab siv txoj haujlwm no los ntsuas cov coil tsis kam ntawm qee qhov. me me electromagnetic relays. Lwm qhov xwm txheej yog ntsuas qee qhov me me nti capacitors. Kev siv cov iav no tsuas yog txiav txim siab seb lub capacitor yog luv luv, tab sis lub peev xwm tiag tiag yuav tsum tau ntsuas nrog lub capacitor iav.
Dab tsi yog qhov muaj zog tiv thaiv kev cuam tshuam, digital multimeter lossis pointer multimeter?
Qhov ntxov tshaj plaws siv pointer multimeter, thaum siv, piv txwv li, cov iav tiv thaiv qee zaum yuav tsum tau xoom. Thaum ntsuas qhov ntsuas hluav taws xob, pib ntsuas los ntawm qib siab txoj haujlwm ua ntej txhawm rau tiv thaiv lub ntsuas hluav taws xob. Tsis tas li ntawd, nws yuav tsum tau ua kom ruaj khov thaum ntsuas. Dial lub ntsej muag. Kev cuam tshuam rau tib neeg thiab ib puag ncig.
Ntawm qhov tod tes, cov multimeters digital tsis muaj qhov tsis zoo uas tau hais los saum toj no, thiab cov khoom siv hluav taws xob txhua hnub yog qhov loj, yog li tsis tas yuav txhawj xeeb txog kev kub hnyiab ntawm lub ntsuas.
Tab sis tus pointer multimeter muaj qhov zoo dua, nws yog intuitive thaum ntsuas qhov ntsuas.
Cov multimeter digital muaj qhov yuav tsum tau qis rau kev siv ib puag ncig, ntau yam kev siv, muaj peev xwm tiv thaiv kev cuam tshuam, thiab qhov tsis zoo.
Lub analog multimeter muaj lub ntim loj, tsis yooj yim rau nqa, muaj qhov xav tau siab rau kev siv ib puag ncig, muaj peev xwm tiv thaiv kev cuam tshuam tsis zoo, thiab tsis yooj yim rau kev nyeem cov ntawv nyeem, tab sis muaj qhov raug siab.
Tau kawg, lub peev xwm los tiv thaiv kev cuam tshuam zoo dua li tus pointer multimeter. Thaum lub digital multimeter ntsuas qee qhov hluav taws xob tsis zoo, xws li qhov hluav taws xob ntawm qee cov ntsiab lus hauv qhov hloov pauv zaus, kev nyeem ntawv yuav dhia mus, thiab tsis muaj txoj hauv kev los nyeem nws. Lub pointer multimeter tsis muaj qhov teeb meem no, tab sis nws yog qhov tseeb thiab siv tau yooj yim. Lub degree yog phem tshaj lub rooj digital. Nyob rau hauv luv luv, ob leeg muaj lawv tus kheej zoo thiab tsis zoo.
Muaj ob hom pointer watches: internal magnetism thiab sab nraud magnetism. Qhov yuam kev tshwm sim los ntawm hluav taws xob zoo li qub yog qhov loj heev. Yog hais tias koj tsis ntseeg kuv, rub ob txhais tes ntawm lub iav dial thiab tes yuav tsis rov qab. Digital watches muaj txiaj ntsig zoo, tab sis txhua tus muaj nws qhov zoo thiab qhov tsis zoo.
