Vim li cas tsis tuaj yeem ntsuas cov polaratusal ntawm lwm txoj kev hloov tshiab?
Qhov thiaj li -}} Hu tau tam sim no txhais tau tias nws cov kev hloov pauv polarity hloov, thiab qhov ceev ntawm kev hloov pauv tau nrawm heev. Seb nws yog tus pointer - hom lossis ib qho ntxiv siab dua cov digital polarity. Tus naj npawb ntawm lub sijhawm nws cov kev hloov pauv polarity nyob rau lub sijhawm, thiab nws chav tsev yog hertz, uas yog lub cev lub cev muaj npe ntawm lub forticist Mr. Hertz. Vim tias polarity ntawm cov hwj chim siv rau lwm qhov, nws tsuas yog tsis yooj yim sua kom ntsuas nws polarity nrog ib tug neeg zoo tib yam nkaus. Yog tias nws yog qhov yuav tsum paub cov polarity nyob rau qee lub sijhawm, uas yog, nws txoj kev yooj yim yog siv cov khoom siv hluav taws xob tshwj xeeb tau siv los saib xyuas cov pulses tam sim no lossis ncaj qha cov pulses.
Cov kev taw qhia ntawm lwm qhov kev hloov pauv tam sim no txhua lub sijhawm, thiab tsis muaj lub tswv yim ntawm polarity. Thaum nws los txog rau kev ntsuas cov xaim hlau nyob thiab qhov nruab nrab ntawm hlau, koj tuaj yeem tsim qhov ntau ntau yam rau kev hloov voltage. Tuav txoj kev sib tw dub ua nrog ib txhais tes thiab siv cov xim liab ua kom pom cov hlau. Yog hais tias tus pointer deflets, nws yog cov hlau nyob hlau, thiab yog tias nws tsis deflect, nws yog qhov nruab nrab hlau. Ib qho ntxiv, qee cov multiverdeters digital tam sim no muaj cov haujlwm ntawm electroscope.
Hloov chaw tam sim no yog hluav taws xob tam sim no uas nws qhov ntau thiab kev coj ua ntu zus. Nws tsis muaj polarity tab sis tsuas yog zaus. Qhov ntau zaus ntawm kev hloov pauv tam sim no hauv peb lub teb chaws yog 50 hertz, uas txhais tau hais tias cov kev hloov pauv tam sim no thiab dua 50 zaug ib zaug, thiab cov kev taw qhia hloov 100 zaug. Muaj qee yam tsis ncaj ncees lawm nrog cov lus nug no nws tus kheej.
