Yuav ntsuas seb qhov DC Current Range (DCA) puas ua haujlwm zoo?
Yog tias muaj qhov paub tam sim no, nkag ncaj qha rau hauv hom tam sim no. Yog tsis yog, tsis muaj teeb meem. Tsuas yog nkag mus rau qhov voltage hauv hom tam sim no. Yog hais tias nws outputs 1, hloov nws mus rau lub qis ntau hom kom txog rau thaum ib tug siv tau tus nqi tshwm. Thov ua tib zoo mloog cov ntsiab lus hauv qab no:
A, Thov tsis txhob nkag siab qhov hluav taws xob ntau dhau kom tsis txhob ua rau lub ntsuas hluav taws xob puas vim yog qhov tam sim no ntau dhau. Cov peev txheej uas tuaj yeem nkag tau suav nrog cov roj teeb li niaj zaus xws li No.5, No.7, thiab lwm yam;
B, Thaum ntsuas qhov tam sim no ntawm qhov hluav taws xob input voltage, vim qhov me me tsis kam (load) ntawm lub ntsuas hluav taws xob sab hauv, yog tias cov tswv yim ntev dhau lawm, nws yuav ua rau lub hauv paus puas. Yog li ntawd, ib qho kev tawm tswv yim yuav tsum tsis pub tshaj 5 vib nas this kom ntau li ntau tau;
C, Kev sib raug zoo ntawm qhov sib txawv ntawm qhov siab thiab qis, qhov nyob ib sab, feem ntau yog 10 zaug.
Yuav ua li cas txiav txim siab qhov zoo ntawm lub capacitor theem (CAP)?
Teb: Feem ntau, nws yog nrhiav lub capacitor nrog tus nqi paub thiab ncaj qha ntxig rau kev ntsuas. Cov txiaj ntsig tau tshwm sim ntawm txhua qhov yuav tsum yog nyob rau hauv 10 fold piv kev sib raug zoo; Nws yog qhov zoo tshaj plaws los siv cov hlau capacitors nrog lub peev xwm ruaj khov thiab qhov tseeb siab thaum kuaj. Nws tsis pom zoo kom siv electrolytic capacitors rau kev ntsuam xyuas, vim tias lawv qhov ruaj khov thiab qhov tseeb tsis zoo.
Lub hauv paus ntsiab lus ua haujlwm ntawm digital multimeter yog dab tsi?
Teb: Qhov yooj yim Circuit Court ntawm ib tug digital multimeter yog header circuit, uas quantifies lub input DC voltage (analog) thiab outputs; Lwm cov haujlwm feem ntau xav tau qhov sib ntxiv ntawm sab nraud circuits. PS: Niaj hnub no, theem kev sib koom ua ke ntawm multimeter chips yog nce, thiab cov peripheral circuits tau dhau los ua tsawg thiab tsawg, uas muaj qhov zoo thiab qhov tsis zoo. Qhov zoo: Kev sib koom ua ke siab, yooj yim sab nraud circuits, thiab tsawg dua qhov tsis zoo los ntawm cov teeb meem zoo; Disadvantage: Thaum lub nti tawg, tus nqi hloov pauv siab thiab teeb meem. Qee zaum, cov nyiaj siv los hloov ib lub nti tuaj yeem siv los yuav lwm qhov ntsuas, yog li feem ntau nws yuav tsum tau muab pov tseg.
