Txoj kev kuaj xyuas tshwj xeeb rau DC meter hau ntawm ib qho analog multimeter:
Yog tias txhua tus zog tsis tuaj yeem ua haujlwm, lub zog hluav taws xob Circuit Court thiab A / D Converter Circuit Court yuav tsum tau kuaj xyuas kom zoo. Thaum kuaj xyuas lub zog hluav taws xob, tshem cov khoom siv roj teeb, nias lub zog hloov chaw, thiab txuas cov kev ua si tsis zoo rau lub zog ua haujlwm zoo (rau cov digital pultimimeter). Tig lub pob tes xoo mus rau DIOD ntsuas hom. Yog tias cov zaub pom tau qhia qhov zoo voltage ntawm diode, nws qhia tau tias lub zog hluav taws xob yog qhov zoo. Yog tias qhov sib txawv yog qhov loj, nws qhia tau tias muaj teeb meem nrog lub zog hluav taws xob. Yog tias muaj kev qhib Circuit Court, tsom rau kev kuaj lub zog hloov thiab roj teeb ua. Yog tias muaj lub sijhawm luvfuag tshwm sim, nws yog qhov tsim nyog los siv Circuit Court tawg txheej txheem kom maj nrawm rau cov khoom siv hluav taws xob uas siv lub zog ua haujlwm, timer, thiab A / D Converter. Yog tias muaj kev luv nqi tshwm sim, nws feem ntau ua rau kev puas tsuaj ntau dua ib qho sib xyaw ua ke. Txheeb xyuas qhov A / D Converter tuaj yeem ua ib txhij nrog ntsuas cov lus qhia, sib npaug rau DC meter lub taub hau ntawm ib tug analog multimeter. Txoj kev kuaj xyuas tshwj xeeb:
(1) tig cov ntsuas ntawm cov ntsuas ntsuas mus rau theem qis tshaj plaws ntawm qhov chaw voltage;
(2) Ntsuas seb puas yog cov kev ua haujlwm hluav taws xob ntawm A / D Converter yog qhov qub. Raws li tus qauv ntawm A / D Converter siv nyob rau hauv lub rooj, coj mus rau v + tus pin thiab com tus nqi ntsuas nrog lawv cov kev ntsuas pom tias lawv phim.
(3) Ntsuas cov ntaub ntawv hluav taws xob ntawm A / D Converter. Feem ntau siv cov digital multidim anertaltalt voltage feem ntau yog 100mv lossis 1v, uas ntsuas lub DC voltage ntawm vref + thiab com. Yog tias nws deviates los ntawm 100mv lossis 1V, nws tuaj yeem hloov kho los ntawm sab nraud Potentiometer.
(4) Txheeb xyuas tus lej tso nrog cov lus tshaj tawm, luv luv qhov chaw nyob hauv - ntawm A / D Convey} "{{{{{}}. {}}".
(5) Tshawb xyuas tag nrho cov hlua ntawm lub saib. Luv Circuit Court lub davhlau ya davhlau xeem tus lej V +, ua rau muaj lub zog hluav taws xob hauv av los ua kev ua haujlwm siab thiab txhua yam digital. Vim tias ncaj qha rau cov hluav taws xob tam sim no siv rau txhua qhov mob stroke, txhua tus kab mob strokes, txhua tus tshuaj tua kab thiab cov kev sib dhos cov lus qhia "1888" thiab "18888". Yog tias muaj mob stroke uas ploj lawm, tshuaj xyuas seb puas muaj kev sib cuag tsis zoo los ntawm cov lus qhia tawm ntawm A / D Converter thiab cov nplaum), thiab nruab nrab ntawm A / D Converter thiab cov zaub.
