Thaum siv lub ncov chaw, vim li cas cov digital mottimimeter kaw?
Nws tsis tuaj yeem raug txiav txim tawm tias lub roj teeb tau khiav qis. Thaum siv lub buzzer hom, lub buzzer yog ib qho hluav taws xob tsis sib haum, thiab cov hluav taws xob tsis tshua muaj zog thiab ua rau lub ntsiab tso tawm ncaj qha vim tsis muaj hluav taws xob tsis txaus
Yog tias lub roj teeb tseem zoo li qub tom qab hloov, nws yuav tshwm sim los ntawm kev luv luv ntawm Circuit Court lossis to taub hau lossis cuam tshuam tsav tsheb. Tsis tas yuav Tinker ntxiv lawm. Ib qho nqi sib xyaw me me thiab siv sijhawm ntau dua.
Lossis tsuas hloov lub buzzer thiab sim nws tawm. Yog tias nws tsis ua haujlwm, tsuas yog yuav ib qho tshiab.
Feem ntau muaj ob qho xwm txheej thaum lub digital multimeter txiav thaum siv cov hom buzzer. Ib qho yog tias lub roj teeb ntawm multimeter yog qub, thiab thaum lub roj fais fab muaj zog, ua rau lub roj hluav taws xob siab, ua rau cov multimeter kom kaw; Lwm qhov xwm txheej yog tias muaj malfunction nyob rau hauv hom buzzer, qhov twg tam sim no thaum lub sij hawm hluav taws xob thiab ua rau lub multimeter kaw. Hauv qab no, peb yuav muab cov lus qhia ntxaws ntxaws ntxiv rau tus ua haujlwm thiab kev daws teeb meem ntawm lub Cand Buzzer ntawm cov digital calcuitateg
Kev ua haujlwm tam sim no lwm theem ntawm cov kev nquag siv digital tau siv hluav taws xob ntau dua li cov hluav taws xob cov vuas thiab cov teeb pom kev. Yog tias lub roj teeb ntawm multimeter yog qub, nws yuav ua rau muaj kev txo qis hauv roj teeb hluav taws xob, uas ua rau muaj kev sib cav sib ceg.
Tsis tas li ntawd, yog tias Cmos Rooj Vag CD4011 lossis piezoelectric ceramer iav ua tsis zoo, nws yuav ua rau muaj kev siv fais fab tuag, nws yuav ua rau muaj kev sib txuam, uas tseem yuav ua rau cov multimeter kom kaw cia. Tus kws sau ntawv tau kho yav dhau los ua kev txhaum nrog kev siv hluav taws xob siab hauv Chaw Muag Khoom, feem ntau nrog CD4011 lossis piezoelectric tej daim chips sib xyaw. Thaum muaj me ntsis luv luv ntawm ob qho kawg ntawm lub piezoelectric ceramer los tsim cov suab tsawg dua thiab nce hluav taws xob ntau.
Piezoelectric ceramic daim ntawv.
Lub piezoelectric ceramic phaj tau siv rau cov digital motimeter yog pom nyob rau hauv daim duab saum toj no. Hom piezoelecric no feem ntau yog los ntawm lub suab ib lub suab ua kom muaj zog kom cov ntim ntawm lub suab. Qhov kev txhaum ua txhaum ntawm piezoelectric tej daim chips yog qhov kev tshem tawm ntawm lub qab ceramic txheej.
Txoj hauj lwm ntawm lub iav buzzer ntawm cov digital multimeter.
Lub Buzzer hom ntawm cov digital pululimeter yog feem ntau ua ke nrog Diode hom, raws li qhia hauv daim duab saum toj no. Thaum kuaj cov Circuit Court ntawm / tawm siv cov hom buzzer, kho cov ntau hloov mus rau Diode hom kev ua haujlwm.
