Vim li cas thiaj zoo LED BEADS tsis yog qhov kaj thaum ntsuas nrog tus multimeter?
LED Teeb Beads, tseem hu ua Lub Teeb-Hnub Diodes, feem ntau siv lub teeb tsis zoo rau kev soj ntsuam qhov ci ci ntawm LED teeb hlaws dai ntawm lub teeb LED teeb liab (faintly qaim) los txiav txim. Qee zaum, vim li cas txoj kev teeb loj LED teeb tau ntsuas siv kev siv motimeter tab sis tsis kaj?
1, Cov digital multimeter Diode ntaub ntawv tsis-load voltage feem ntau 2.8v 0. 2v lossis li ntawd.
Recall that we often use the multimeter beeping gear to locate faults, such as measuring the wire through, etc., when the two test points straight through, the multimeter will beep. Lub buzzer iav ntsuas qhov tsis kam ntawm ob lub ntsiab lus, tus nqi tiv thaiv tsawg dua 70ω lossis yog li thaum compatal animeter yuav gotegimeter. Ntau ntau yam zauv ntawm cov iav thiab cov iav buzzer hauv ib lub iav, los ntawm ib qho kev ntsuas hloov, qhov tseeb ntawm cov hluav taws xob tshwj xeeb, yog beep.
Lub hauv paus ntsiab lus ntawm mulcitat cov ntaub ntawv yog qhov txawv txav me ntsis, feem ntau ntawm 2.6V, thaum ntsuas cov zis sib txawv ntawm 1Ms
Thaum ntsuas tus cwj mem dog dig rau diode, tus xaum liab txuas nrog cov khoom siv hluav taws xob, cov khoom siv sib txawv ntawm cov khoom siv hluav taws xob ntawm feem ntau {}.
2, LED teeb hlaws rau tom ntej voltage voltage poob 1.8v ~ 3.5v lossis li ntawd
Cov xim sib txawv thiab cov qauv ntawm LED teeb cov hlaws dai nrog txawv conduction voltator lub teeb - ntsuab, nws txoj kev xav tau conduction poob ntawm txog 1.8v ~ 2.2V ~ 2.2V ~ 2.2V lossis yog li ntawd.
Dawb thiab xiav xiav Beads nws txoj kev coltitting poob siab txog 2.7v ~ 30v lossis li, tsev neeg teeb pom kev zoo ntawm 3v, 2.8v, 3.5v, thiab lwm yam ..
Kev ntsuas cov ntsiab lus ntawm kev ntsuas teeb tsa LED Lub iav multimeter Matode iav cov zis voltage tsis txaus, lub teeb taws teeb hlaws yuav tsis ci me ntsis. Qhov no yog vim li cas cov kab hlaws LED yog li qub, tab sis tsis kaj thaum ntsuas nrog tus multimeter.
