Dab tsi yog cov lus qhia rau kev siv tshuaj malcimeter?
Xaiv cov pointer thiab Cov Ntxhuav:
1. Txoj kev nyeem ntawv tseeb ntawm tus taw tes meters yog tsis zoo, thiab qhov pib ntawm cov khoom ntsuas oscillation kuj tuaj yeem sib npaug ntawm cov ntaub ntawv TV (SDL) thaum xa cov ntaub ntawv xa); Kev nyeem ntawv ntawm digital meter yog intuitive, tab sis cov txheej txheem ntawm cov kev hloov pauv ntawm cov ntsiab lus chaotic thiab nyuaj rau saib.
2. Muaj feem ntau ob lub roj teeb sab hauv tus taw qhia, ib qho uas muaj hluav taws xob qis ntawm 1.5v thiab lwm qhov hluav taws xob ntawm 9V lossis 15v. Cov kev sojntsuam dub yog qhov kev ua txhaum cai loj kawg rau cov kev sojntsuam liab. 6V lossis 9V roj teeb yog siv tau siv rau cov kev saib xyuas digital. Nyob rau hauv cov kev tsis kam, cov zis tam sim no ntawm pointer ntsuas yog ntau qhov loj dua li cov chav ntsuas digital. Siv R × 1 ω Ntau yuav ua rau tus neeg hais lus tau ua suab nrov "
3. Nyob rau hauv lub voltage ntau, sab hauv kev tawm tsam ntawm pointer ntsuas yog qhov ntsuas me me rau cov meter meter, thiab ntsuas qhov tseeb yog tus tsis zoo. Hauv qee qhov kev ntsuas hluav taws xob high-vollourrent, nws yog txawm tias tsis yooj yim sua ntsuas yog vim nws ntsuas nrawm dua ntawm lub TV cathode yuav qis dua tus nqi tiag tiag). Sab hauv kev tawm tsam ntawm lub voltage ntau ntawm cov chav ntsuas digital ntau, tsawg kawg hauv Megaohm ntau yam, thiab muaj qhov cuam tshuam me me rau ntawm qhov kev sim ntsuas Circuit Court. Txawm li cas los xij, cov zis heev tshaj tawm ua rau nws raug rau qee cov ntaub ntawv nrog kev cuam tshuam hluav taws xob tsis muaj hluav taws xob.
4. Hauv luv luv, cov ntsiab lus me me yog tsim nyog rau ntsuas analog ncig nrog cov hluav taws xob ntau zaus thiab muaj TV thiab audio amplifas. Cov metters yog tsim nyog rau kev ntsuas cov hluav taws xob qis thiab qis dua tam sim no cov kab xev, thiab lwm yam. Nws tsis raug xaiv raws li qhov xwm txheej.
Kev Ntsuas Kev Ntsuas
Hauv kev kuaj ntawm diodes, transistors, thiab voltage regulators yog feem ntau loj, feem ntau nyob rau ntau pua lossis ntau txhiab tus kabmob ntau. Yog li ntawd, peb tuaj yeem siv lub r × 10 ω lossis r × 1 ω ntau ntawm ntau qhov ntau los ntsuas qhov zoo ntawm PN sib tshuam ntawm txoj kev. Thaum ntsuas kev ntsuas ntawm txoj kev, kev sib tshuam PN yuav tsum muaj qhov pom tseeb thiab thim rov qab (yog tias qhov sib txawv (yog tias qhov sib txawv (yog tias qhov sib txawv (yog qhov sib txawv (yog qhov ntau tau siv rau kev ntsuas). Feem ntau, ua ntej yuav tsum tau qhia ib ncig ntawm 200 ω thaum ntsuas hauv lub r × 10 ω ntau yam (tej zaum yuav muaj qhov sib txawv me ntsis nyob ntawm sib txawv phenotypes). Yog hais tias ntsuas qhov tshwm sim qhia tau hais tias qhov kev tiv thaiv pem hauv ntej yog qhov siab dhau los yog qhov rov qab tsis tshua muaj, nws qhia tau tias muaj teeb meem PN sib tshuam, thiab lub raj tseem muaj teeb meem. Txoj kev no yog tshwj xeeb rau kev saib xyuas, raws li nws tuaj yeem txheeb xyuas cov kav dej sai thiab txawm pom kav dej uas tsis tawg tag nrho tab sis muaj cov yam ntxwv tsis zoo. Piv txwv li, thaum koj ntsuas qhov tsis kam ua PN sib tshuam nrog ntau thiab nws haj yam siv ntau dua nrog cov nquag siv Qhov tseeb, cov yam ntxwv ntawm lub raj no muaj kev cuam tshuam thiab nws tsis tuaj yeem ua haujlwm tau zoo lossis tsis ruaj khov.
