Txhua qhov chaw tam sim no muaj nws tus kheej tiv thaiv sab hauv. Ib qho hluav taws xob hluav taws xob yog lub kaw lus kaw nrog cov neeg siv khoom siv hluav taws xob siv hluav taws xob. Txhua qhov Circuit Court no muaj kev tiv thaiv sab nraud thiab sab hauv.
Sab nraud yog qhov kev tawm tsam ntawm tag nrho cov Circuit Court nrog cov neeg siv khoom thiab cov neeg siv khoom, thiab sab hauv kev tawm tsam los ntawm qhov chaw nws tus kheej.
Yog tias lub tshuab hluav taws xob siv los ua qhov tam sim no, ces nws cov kev tiv thaiv sab hauv tau muab faib ua active, inductive thiab capacitive. Active nyob ntawm qhov ntev ntawm tus neeg xyuas pib thiab nws cov tuab, nrog rau cov khoom siv los ntawm tus neeg xyuas pib, thiab nws cov mob. Lub inductive nyob ntawm qhov inductance ntawm lub kauj (tus nqi ntawm nws lub nraub qaum-EMF), thiab lub capacitive tshwm sim ntawm qhov lem ntawm winding. Nws yog me me heev. Yog hais tias lub roj teeb zoo tib yam siv los ua qhov chaw, ces qhov kev tiv thaiv kuj tseem tsim nyob rau hauv nws vim yog electrolyte.
Tam sim no yog qhov taw qhia txav ntawm cov khoom, thiab kev tawm tsam yog qhov teeb meem tsim nyob rau hauv txoj kev ntawm nws txoj kev txav. Cov teeb meem zoo li no pom ob qho tib si hauv electrolyte thiab hauv cov hlau lead ntawm cov roj teeb, hauv ib lo lus,qhov twg muaj tam sim no.
Vim qhov tseeb tias muaj kev tiv thaiv sab hauv hauv qhov chaw, nws tsis tuaj yeem xav tias qhov hluav taws xob hauv Circuit Court yog tag nrho cov hluav taws xob hluav taws xob ntawm qhov chaw. Tau kawg, qhov hluav taws xob poob hauv qhov chaw nws tus kheej tuaj yeem tsis quav ntsej, tab sis tsuas yog tias nws tsis tsim nyog.
Yog tias cov hluav taws xob loj raug tsim nyob rau hauv qhov chaw, ces qhov hluav taws xob ntawm cov terminals tsis tuaj yeem suav tias yog lub zog hluav taws xob tiag. Tam sim no nyob rau hauv qhov chaw yog ib tug kos npe rau ntawm ib tug voltage poob nyob rau hauv nws. Nyob rau hauv cov ntaub ntawv no, Kirchhoff txoj cai siv, uas hais tias qhov tseeb EMF ntawm lub Circuit Court yog cov sum ntawm cov voltage tee nyob rau hauv tag nrho cov seem, nrog rau qhov chaw nws tus kheej. Thiab cov qauv sau zoo li no:
E=∑U + Ir r
Qhov twg:
E yog tag nrho cov hluav taws xob hluav taws xob ntawm lub voj voog;
U yog qhov poob qis hauv cov ntu hauv Circuit Court;
Ir yog qhov tam sim no tsim tawm hauv qhov chaw; r yog qhov kev tawm tsam sab hauv ntawm qhov chaw.
Txhawm rau nkag siab lub ntsiab lus ntawm lub cev ntawm kev tawm tsam sab hauv ntawm qhov chaw, koj yuav tsum ua qhov kev sim me ntsis. Thaum pib, lub zog electromotive ntawm qhov chaw yog ntsuas. Qhov no yog ua los ntawm kev txuas lub voltmeter mus rau lub roj teeb uas tsis nyob rau hauv load. Tom qab ntawd, koj yuav tsum txuas ib qho kev tiv thaiv me me thiab nruab ib lub ammeter hauv series. Yog li, qhov tam sim no yuav raug paub, thaum lub voltage nyob rau hauv load kuj yuav tsum tau ntsuas.
Los ntawm kev sau tag nrho cov txiaj ntsig ntawm qhov ntau, nws yooj yim los txiav txim siab qhov kev tawm tsam sab hauv. Ua li no, qhov voltage poob hauv lub roj teeb yog thawj zaug txiav txim siab. Siv tus qauv
Ur=E-U
calculate.
In this formula:
Ur - qhov hluav taws xob poob ntawm qhov kev tawm tsam sab hauv;
E - qhov hluav taws xob (EMF) ntsuas ntawm qhov tsis muaj neeg siv khoom;U - qhov hluav taws xob ntsuas ncaj qha hla qhov tsis kam.
Yog li, qhov kev tawm tsam sab hauv yog xam los ntawm cov qauv hauv qab no:
r=Ur/I
Qee tus kws tshaj lij tsis saib xyuas tus nqi no, ntseeg tias nws tuaj yeem tsis quav ntsej vim nws tus nqi me me. Txawm li cas los xij, kev xyaum qhia tau hais tias nrog cov kev suav nyuaj, kev tiv thaiv sab hauv cuam tshuam rau qhov kawg tshwm sim.
