Kev xeem txoj kev rau cov capacitors

1. Nrhiav tau ntawm cov pa hluav taws xob hauv qab 10pf: vim muaj lub peev xwm me me ntawm kev ntsuas kom zoo rau kev ntsuas, sab hauv luv luv, lossis kev ua txhaum sab hauv. Thaum ntsuas kev ntsuas, ib tug multimeter nrog r × 10k ntau yuav siv tau, thiab ob qho probes tuaj yeem txuas nrog rau tus lej PIN ntawm tus lej PIN. Tus nqi tsis kam yuav tsum muaj qhov tsis kawg. Yog hais tias tus nqi tiv taus (pointer viav vias mus rau sab xis) yog xoom, nws qhia tau tias lub capacitor yog puas los ntawm kev xau lossis kev tawg sab hauv.
2. Kuaj ruaj ruaj capacitors nrog 10pf ~ 001 μ F: los ntawm kev txiav txim siab seb puas muaj kev them nqi, qhov kev ua tau zoo tuaj yeem raug txiav txim. Tus motiveter yog teem rau r × 1k iav. Cov nqi beta ntawm ob qho chaw tiv thaiv tau tshaj 100, thiab cov nkag mus tam sim no yuav tsum yog me me. 3DG6 thiab lwm tus qauv ntawm silicon triodes tuaj yeem siv los ua cov closite transistors. Cov kab mob liab thiab dub ntawm cov multimeter muaj kev txuas nrog lub emitter e thiab collector c ntawm cov raj raj. Vim yog cov nyhuv amplosite, cov txheej txheem them thiab tshem tawm cov peev xwm ntsuas tau yog qhov nce ntawm cov laugceem multimimeter thiab pab txhawb kev soj ntsuam.
Nws yuav tsum raug sau tseg tias thaum ntsuas cov haujlwm, tshwj xeeb yog thaum ntsuas cov twj tau hloov mus rau A thiab B txhawm rau kom pom kev viav vias ntawm Paintatter. Rau cov chaw ruaj ruaj capacitors saum toj no 001 μ f, r mult 10 10k ntau ntawm cov capatitions txawm siv tau los ncaj qha cov txheej txheem them nyiaj thiab seb puas muaj kev ntsuas luv luv lossis dej xau. Lub peev xwm ntawm lub capacitor tuaj yeem kwv yees raws li qhov ua kom nrov ntawm tus pointer viav vias mus rau sab xis.