Cov qauv siv rau kev ntsuas diodes thiab capacitors nrog multimeters
1. Ntsuas qhov polarity thiab zoo ntawm cov siv lead ua diode
Txhawm rau txiav txim siab qhov polarity ntawm diode, tig lub multimeter mus rau ntau txhiab ohm. Qhov ntsuas ntsuas tus nqi yog me me txhiab ohms, lub diode rau pem hauv ntej kuj. Tus cwj mem dub kov tus ncej zoo ntawm lub raj, thiab tus cwj mem liab kov tus ncej tsis zoo ntawm lub raj.
Qhov ntsuas tsis kam yog kaum tawm txhiab ohms, thiab diode thim rov qab tsis kam. Tus cwj mem liab kov tus ncej zoo thiab tus cwj mem dub kov tus ncej tsis zoo.
Txhawm rau txiav txim seb lub diode yog qhov zoo lossis qhov tsis zoo, tig lub multimeter mus rau txhiab ohm iav. Qhov sib txawv ntawm qhov zoo thiab qhov tsis zoo kuj tseem ceeb yog qhov loj, thiab qhov loj dua tus nqi, qhov zoo dua. Qhov zoo thiab qhov tsis zoo kuj tseem nyob ze, thiab cov raj kuaj tau ua tsis tiav.
Qhov zoo thiab qhov tsis zoo kuj tseem ceeb yog ob qho tib si xoom, thiab ob tug ncej ntawm lub raj yog luv luv. Qhov zoo thiab qhov tsis zoo kuj tseem ceeb yog infinite, thiab sab hauv ntawm lub raj tau qhib.
2. Xyuas seb lub capacitor puas zoo lossis phem
Microfarad capacitors yooj yim ntsuas. Dial lub multimeter mus rau ntau txhiab-ohm, thiab txuas cov cwj mem liab thiab dub rau ob tus ncej. Lub koob viav vias sab laug thiab sab xis ib zaug, thiab qhov loj dua qhov amplitude, qhov zoo dua.
Lub koob tsis viav vias txhua, thiab muaj qhov qhib Circuit Court nyob rau hauv lub capacitor nyob rau hauv kev sim. Lub koob tsis rov qab mus rau xoom, thiab lub capacitor hauv kev sim tau tawg lawm.
3. Digital multimeter buzzer thaiv kom paub qhov zoo ntawm electrolytic capacitors
Qhov zoo ntawm electrolytic capacitor yog kuaj los ntawm digital multimeter. Tig qhov hloov mus rau lub buzzer, thiab cov txhuam liab thiab dub kov cov ncej zoo thiab tsis zoo. Lub suab nrov luv luv, tom qab ntawd lub cim hla tau tshwm sim.
Lub buzzer suab ntev ntev thiab lub peev xwm capacitor loj. Yog hais tias lub buzzer tseem nrov, lub capacitor nyob rau hauv kev sim yog luv luv. Yog hais tias lub buzzer tsis suab, lub capacitor yog internally disconnected.
4. Tshawb xyuas qhov zoo ntawm high-voltage silicon pawg
Xyuas qhov zoo ntawm silicon pawg, thiab tig lub multimeter mus rau theem voltage. Silicon stack multimeters txuas nrog hauv series, hla AC ob puas thiab ob. Qhov ntau yog DC 250, thiab cov silicon pawg txuas nrog rau pem hauv ntej.
Ntau tshaj 30 volts tsim nyog, thiab rab koob tsis txav thiab muaj qhov ua txhaum. Qhov ntau yog AC 250, thiab kev nyeem ntawv yog 222 luv luv Circuit Court. Lub koob tsis txav thiab nyeem xoom, thiab cov silicon pawg muaj qhov qhib Circuit Court.
