Yuav ua li cas siv digital multimeter los txiav txim seb lub cev muaj zog zoo lossis phem
1. Kev tiv thaiv hauv av (siv cov qib siab ohm iav): cov rwb thaiv tsev tiv thaiv ntawm lub cev muaj zog winding (peb-theem) thiab cov casing feem ntau yuav tsum siab tshaj 2M, thiab qhov yuav tsum tau txo qis raws li qhov tsim nyog rau kev siv hauv av. , acid-base thiab lwm yam ib puag ncig. Feem ntau tsis tsawg dua 0.5M.
2. Theem-rau-theem tsis kam (siv qib siab ohms): cov rwb thaiv tsev tiv thaiv ntawm windings ntawm cov theem sib txawv feem ntau yuav tsum ncav cuag 2M lossis ntau dua, thiab cov kev xav tau tuaj yeem txo qis raws li qhov tsim nyog siv rau hauv av, acid-base thiab lwm qhov chaw, feem ntau tsis tsawg dua 0.5M.
3. Peb-theem tsis kam tus nqi (siv cov iav qis ntawm ohm iav): tus nqi tsis kam ntawm peb-theem winding nws tus kheej xav kom tus nqi tsis kam ntawm peb-theem winding yuav roughly balanced (cov ntaub ntawv raug tsuas yog tau los ntawm Kev ntsuas nrog lub ntsuas ntsuas digital, thiab qhov yuav tsum tau ua rau lub cev muaj zog sib txawv yog qhov sib txawv. yuav tsum tsis pub ntau tshaj 2 feem pua).
Lub cev muaj zog yog ib qho khoom siv uas hloov hluav taws xob hluav taws xob mus rau lub zog siv hluav taws xob. Nws siv cov energized coils (uas yog, stator windings) los tsim kom muaj qhov sib nqus sib nqus thiab ua haujlwm ntawm lub rotor (xws li cov squirrel-cage kaw aluminium thav duab) los tsim lub magnetoelectric quab yuam torque. Cov motors tau muab faib ua DC motors thiab AC motors raws li lub zog siv. Feem ntau ntawm cov motors nyob rau hauv lub hwj chim system yog AC motors, uas yuav ua tau synchronous motors los yog asynchronous motors (lub cev muaj zog stator magnetic teb ceev thiab rotor kev sib hloov ceev tsis tswj synchronous ceev). Lub cev muaj zog yog tsim los ntawm stator thiab rotor. Cov kev taw qhia ntawm cov xaim tam sim no-nqa hauv qhov chaw sib nqus yog cuam tshuam nrog cov kev taw qhia ntawm tam sim no thiab cov kev taw qhia ntawm cov kab sib nqus (magnetic field direction). Lub hauv paus ntsiab lus ua haujlwm ntawm lub cev muaj zog yog qhov sib nqus ua haujlwm ntawm lub zog ntawm qhov tam sim no kom lub cev muaj zog tig.
