Tester voltage mooy jumtukaayu portable wala jumtukaayu fixe ngir natt voltage bi ci biir sircuit bi. Dañu koy jëfandikoo bu bari ci sistemu kuuraŋ, defar ay aparey elektronik, otomatisation industriel, ak yeneen mbir. Fonction core bi mooy gis wuute gi mëna am (maanaam, voltage) ci diggante ñaari poñ ci gis dooley champ électrik bi wala difference charge bi, ba noppi wane njariñ li ci dijital wala pointer bu yomb.
Doxalinu liggéey bu am solo
Njàngalem testkat bu am voltage mingi aju ci li ñuy dugal ci wàllu kuuraŋ wala ci yoonu Ohm. Sudee ñaari sonde yi ci tester bi laal ñaari poñ ci biir sircuit bi ci biir test bi, circuit bi ci biir jumtukaay bi dafay gis wuute gi am ci diggante ñaari poñ yi, ba noppi soppi ko ci siñaal buñ mëna jàng.
1. Voltmetre analog (Analog Xeetu analog)
Anog voltmètre yi dañuy faral di jëfandikoo mekanismu natt magnetoelectric (lu melni {0} galvanometre buy yëngu). Suñu nattee voltage bi ci bobine meter bi, serpentin bi dafay defar courant ci voltage bi ci champ magnetik bi, di dawal pointer bi mu def choi. Angle de deflection dafay wane voltage bi, ñu koy jàng ci dial bi. Xeetu meter bii mingi aju ci reso buy séddale résistance bu jaar yoon ngir yokk tolluwaayu natt gi, ci misaal, boole ci boole- resistor ci seeri ngir natt voltage yu kawe yi.
2. Voltmetru Digital (DMM)
Benn voltmetre digital dafay jëfandikoo analog {-to{- Siyeer soppi (ADC) ngir soppi voltage biñ natt ci siñaal dijital, ñu koy defar ba noppi di ko wane ci microprocesseur. Li muy def mooy:
Signal Conditioning: Voltage biy dugg dañu koy méngale ak rang bi ADC mëna jëfandikoo jaaraleko ci ab attenuatër (ngir natt voltage yu kawe yi) wala amplifikatër (ngir natt voltage yu woyof yi).
Analog-to- Wax jiy méngoo: ADC dafay soppi voltage analog bi def ko ay done ci binaire yi, ñu jëfandikoo ab waxtu {2}-based wala voltage- ci encodage (lu melni ADC bu wéy).
Processing digital: Microcontrolër bi dafay xayma njuumte yi (lu melni offset ak amul ligne) ngir mujjee dawal LCD ngir wane valeur bi (lu melni 3.27V).
Xarala yu Bees yi ak anam yi ñuy nattee
DC Voltage (DCV) Natt: Ci anam wu leer, dafay gis wuute bu dëgër. Mmeter digital bi ñu ngi ko kalibree ci jëfandikoo voltage de réferansi bu kawe- (1}} voltage de royuwaay) (lu melni 2,5V royuwaay).
AC Voltage (ACV) Natt: Signal AC bi dafa wara njëkka soppi siñaal DC bi mu méngoo ak benn sircuit rectificateur (lu melni chip convertisseur RMS) balaa ñuy natt. Xayma RMS (TRMS) dafay jàppale xayma bu dëggu bi ci-sinoidal formes (lu melni vague carré ak forme onde yu bari).
Natt Voltage: Resisteur buy xeex voltage bi (lu melni, 1000:1 xaaj voltage) dañu koy jëfandikoo ngir wàññi voltage yu kawe yi ci niveau bu wóor balaa ñuy dugal leen ci sircuit natt bu mag bi.
Natt Voltage bu woyof: Dañu jëfandikoo amplifikatër bu woyof- ñu jëfandikoo ngir yokk siñaal yu néew doole yi, di tere environmaa bi jafe-jafe yi mëna am ci jafe-jafe yi.
Njàngalem kaaraange ci wàllu kaaraange
Test yu bari yi am nañu ci anam yu bari yuñ tabax {- ci aar:
Aar wote: TVS diode wala gaz decharge gaz yu gàtt {- circuit ak dindi energie ci jamonoy voltage yu kawe.
Aar usulasioŋ: Materiaal yu am solo yu bari (lu melni polyimide) dañu leen di jëfandikoo ci diggante sonde yi ak sircuit bi ngir mëna am paj mu wóor.
Toppatoo ci otomatik: Mmeter smart yi dañuy tànn ci saasi rang bi méngoo ak voltage bi ñuy dugal ngir moytu yàqu-yàqu bu ëpp.
Tënk
Test yi dañuy jëfandikoo xaralay soppi kuuraŋ ak xaralay jëfandikoo siñaal ngir soppi voltage yiñ mënul gis ci li ñuy jàng. Liko dalee ci induksioŋ electromagnetik ba ci kawewaay {1} Lu bees ADCs, seen njàngale dafay boole ci jëfandikoo loi physique yu am solo ak innovation elektronik yu digital, loolu moo leen taxa nekk jumtukaay yuñ mëna tànn ci ingenieur elektronik. Xam seen njàngale ci liggéey dafay yombal tànneef bu jaar yoon, liggéey, ak saafara jafe-jafe, fexe ba natt bu wóor te jaar yoon.