Kev txheeb xyuas txoj kev ruaj khov capacitor
Tso lus
1. Tshawb xyuas cov capacitors me me hauv qab 10pF: Vim tias lub peev xwm ntawm cov capacitors ruaj khov hauv qab 10pF yog qhov tsawg dhau, kev siv multimeter los ntsuas tsuas tuaj yeem kuaj xyuas seb puas muaj cov dej xau, sab hauv lossis tawg. Thaum ntsuas, koj tuaj yeem siv lub multimeter R × 10k thaiv, thiab siv ob lub ntsuas ntsuas los txuas ob tus pins ntawm lub capacitor ntawm qhov siab, thiab tus nqi kuj yuav tsum yog qhov kawg. Yog tias qhov ntsuas ntsuas tus nqi (tus pointer viav vias mus rau sab xis) yog xoom, nws txhais tau hais tias lub capacitor puas los ntawm kev xau lossis kev puas tsuaj sab hauv.
2. Tshawb xyuas 10PF-001μF tsau capacitors: los ntawm kev txiav txim seb puas muaj qhov tshwm sim them nyiaj, thiab tom qab ntawd txiav txim seb nws puas zoo lossis phem. Lub multimeter xaiv R × 1k thaiv. Tus nqi ntawm ob lub triodes yog siab dua 100, thiab qhov nkag mus tam sim no yuav tsum me me. 3DG6 thiab lwm yam silicon triodes tuaj yeem xaiv los tsim cov raj sib xyaw. Kev kuaj liab thiab dub ua rau ntawm lub multimeter txuas nrog rau lub emitter e thiab collector c ntawm cov raj sib xyaw. Vim lub amplifying nyhuv ntawm composite triode, lub them thiab tso tawm txheej txheem ntawm lub capacitor nyob rau hauv kev sim yog amplified, thiaj li hais tias lub pendulum ntawm lub multimeter pointer yog nce, uas yog yooj yim rau kev soj ntsuam.
Nws yuav tsum raug sau tseg tias thaum lub sijhawm ua haujlwm, tshwj xeeb tshaj yog thaum ntsuas lub peev xwm me me, nws yuav tsum tau hloov pauv cov pins ntawm lub capacitor nyob rau hauv kev sim kom tiv tauj cov ntsiab lus A thiab B, txhawm rau kom pom tseeb lub viav vias ntawm lub multimeter pointer. Rau cov capacitors ruaj khov saum 001μF, R × 10k block ntawm multimeter tuaj yeem siv los ntsuas ncaj qha seb lub capacitor puas muaj cov txheej txheem them nyiaj thiab seb puas muaj qhov luv luv hauv Circuit Court lossis to, thiab lub peev xwm ntawm lub capacitor tuaj yeem kwv yees raws li cov khoom siv. amplitude ntawm tus pointer swinging mus rau sab xis.
