Txoj kev thiab cov kauj ruam rau ntsuas capacitors nrog ib tug multimeter
Lub multimeter muaj peb qhov tseem ceeb: lub taub hau meter, ntsuas Circuit Court thiab hloov pauv hloov. Multimeter yog cov cuab yeej yooj yim tshaj plaws hauv kev ntsuas hluav taws xob thiab siv dav siv ntsuas ntsuas. Multimeter tseem hu ua multi-meter, triple meter (A, V, Ω uas yog, tam sim no, voltage, tsis kam, peb), multiplex meter, multimeter, multimeter muab faib ua pointer multimeter thiab digital multimeter, kuj tseem muaj oscilloscope nrog. oscilloscope muaj nuj nqi ntawm oscilloscope multimeter yog ib tug multi-functional, ntau yam ntsuas ntsuas. General multimeter tuaj yeem ntsuas DC tam sim no, DC voltage, AC voltage, tsis kam thiab suab theem, thiab lwm yam. Qee qhov tseem tuaj yeem ntsuas AC tam sim no, capacitance, inductance, kub thiab semiconductor (diode, transistor) ntawm qee qhov tsis muaj. Digital multimeter tau dhau los ua qhov tseem ceeb, tau hloov lub ntsuas ntsuas analog. Piv nrog cov ntsuas analog, cov ntsuas digital muaj qhov rhiab heev, qhov tseeb siab, pom meej meej, muaj zog tshaj lub peev xwm, portable, thiab yooj yim dua thiab siv yooj yim dua.
Capacitor, feem ntau hu ua nws lub peev xwm los tuav tus nqi raws li lub peev xwm, nrog tsab ntawv C los qhia. Lus Txhais 1: Capacitor, raws li lub npe qhia, yog 'lub thawv rau hluav taws xob', ib yam khoom uas tuav cov nqi hluav taws xob. Lub npe lus Askiv: capacitor. capacitor yog ib qho ntawm cov khoom siv hluav taws xob siv nyob rau hauv ntau cov khoom siv hluav taws xob, dav siv hauv kev sib cais hauv Circuit Court los ntawm tus ntoo khaub lig, coupling, bypass, filtering, tuning circuit, zog hloov dua siab tshiab, tswj, thiab lwm yam. (nrog rau cov xov hlau) uas yog insulated los ntawm ib leeg thiab nyob ze ua ke ua ib lub capacitor.
Kev ntsuas ntawm lub peev xwm loj dua (5000P lossis ntau dua), lub ntsuas ntsuas multimeter yuav nrawm nrawm sab xis thiab tom qab ntawd maj mam rov qab mus rau sab laug kawg, tus pointer nres taw tes rau qhov kev tiv thaiv tus nqi ntawm cov rwb thaiv tsev ntawm lub capacitor. Rwb thaiv tsev tiv thaiv qhov loj dua qhov zoo dua, feem ntau yuav tsum nyob ze rau ∞ yog tias lub pointer tsis txav, lub capacitor tau raug txiav, tom qab lub viav vias tsis rov qab, lub capacitor leakage loj heev, siv tsis tau. Lub peev xwm me me (5000P lossis tsawg dua) capacitor xeem koob yeej tsis txav.
Electrolytic capacitor yog ib qho kev ntsuas polarized capacitance yuav tsum tau txuas nrog tus cwj mem liab electrolytic capacitor tsis zoo, tus cwj mem dub txuas nrog tus ncej zoo, qhov loj dua qhov capacitance, qhov loj dua ntawm rab koob viav vias, txhua qhov kev ntsuas yuav tsum luv luv rau ob qho kawg ntawm lub capacitor. them rau ntawm lub capacitor them tawm.
Test siv lead ua diode
Ntsuas qhov kev tiv thaiv pem hauv ntej ntawm lub diode. Qhov me dua tus nqi kuj, qhov zoo dua.
Ntsuas qhov diode thim rov qab tsis kam. Qhov loj dua tus nqi kuj, qhov zoo dua.
Test Crystal Triode
Ntsuas cov transistor nkag tam sim no. NPN-hom raj raws li qhia (PNP-hom cwj mem rov qab) ce inter-ncej kuj yuav tsum loj heev, qhov loj dua tus nqi ntawm qhov kev tiv thaiv no, qhov me dua qhov transistor nkag mus rau tam sim no, qhov zoo dua qhov ruaj khov ntawm kev ua haujlwm, yog tias tuav tes. lub raj, tus nqi kuj txo qis, kev ruaj ntseg ntawm lub transistor tsis zoo heev.
Kev ntsuas ntawm triode amplification nyob rau hauv qhov kev ntsuas yav dhau los raws li triode cb ntawm tus ncej ntxiv rau 100K resistor, rab koob yuav tsum viav vias mus rau sab xis qhov loj dua lub viav vias, qhov loj dua triode amplification. (Yog tias tsis muaj kev tawm tsam, koj tuaj yeem siv koj sab tes laug los tuav tus ncej bc tib lub sijhawm los hloov cov tib neeg lub cev tsis kam.
