Yuav ua li cas mus xyuas ib tug capacitor

Capacitors yog siv lug thiab ntau yam nyob rau hauv niaj hnub siv tshuab, tshwj xeeb tshaj yog nyob rau hauv electronics. Xov tooj cua engineering thiab TV khoom, radar, telephony thiab telegraphy, automation thiab tej thaj chaw deb tswj, xam pab kiag li lawm thiab hluav taws xob pab kiag li lawm, laser tshuab - qhov no tsis yog ib qho exhaustive daim ntawv teev cov chaw ntawm daim ntawv thov. Lawv yog siv nyob rau hauv txhua lub sectors ntawm kev khwv nyiaj txiag.

Nws yog ib heev ntshiab hais tias xws li ib tug broad daim ntawv thov ntawm capacitors ua thiab muaj ntau haiv neeg ntawm tsiaj. Nrog rau tej yam me me capacitors, muaj tiag tiag giants uas ob peb tons. Lawv muaj peev xwm yuav thaj tsam li ntawm ib feem ntawm PF mus rau pua pua txhiab tus microfarads, thiab cov nominal kev khiav hauj lwm voltage yuav ua tau nyob rau hauv ntau los ntawm ib tug ob peb volts rau ntau pua pua ntawm kilovolts.

Nyob rau hauv peb lub sij hawm, nyob rau hauv txhua txhua lub tsev tsis muaj tag nrho cov hom ntawm khoom vaj khoom tsev, thiab, thiaj li, thiab capacitors. Tu siab, lawv feem ntau tsis rau ntau yam yog vim li cas, yog li cov nqe lus nug tshwm sim, yuav ua li cas mus ntsuam xyuas ib tug capacitor nrog ib tug multimeter, tester los yog ohmmeter.

Nyob rau hauv kev xyaum, feem ntau nws xav tau kev pab mus saib tus qauv thiab ib nrab tsis muaj peev xwm. Yog vim li cas rau tus so yog txuam nrog ib tug tseem ceeb tshaj ntawm lub permissible kev khiav hauj lwm voltage. Feem ntau, cov sab nraud cov tsos mob ntawm lub neej puas yuav pom nyob rau hauv lub vaj tse caij - me ntsis, o, tej kab nrib pleb, thiab lwm yam ...

Yuav ua li cas mus saib hauv lub multimeter capacitor

ke universal ntaus ntawv rau hluav taws xob kev soj ntsuam - multimeter. Ua ntej koj yuav mus saib lub capacitor, nws yuav tsum tau mos txwv. Nws yog tshwj xeeb tshaj yog ib qho tseem ceeb mus saib, pib lub pov thawj ncov qaumteb qabteb capacitor, yus muaj los ntawm muaj peev xwm, siab khiav hauj lwm voltage. Tsis ua li ntawd yuav ua puas lub 'meter'. Nyob rau hauv thiaj li yuav raws lub uas tsis muaj-voltage capacitor yog txaus kom luv luv-Circuit Court nws cov lus xaus, thiab mus raws lub high-voltage capacitor yog ua los ntawm lub resistor mus rau 10 ohms, kom tsis txhob sparks. Nyob rau tib lub sij hawm nws ob txhais tes mus kov cov lus xaus tsis tau yuav, los yog siab phem poob siab muab.

Nws yog ib qho tseem ceeb kom paub raws nraim li cas mus xyuas capacitor nyob rau hauv tej teeb meem no muab, vim hais tias kev kuaj txoj kev yog nyob ntawm ntau yam.

Qhov yooj yim txoj kev uas yuav validate ib tug multimeter muaj ib tug muaj nuj nqi ntawm capacitance ntsuas, txawm li cas los, nyob rau tib lub sij hawm peb yuav tsum tsis txhob hnov qab yuav tsum tau mus hwm cov kev cai ntawm polarity thaum uas siv cov ncov qaumteb qabteb capacitors.

Kos multimeter capacitors muaj tsis muaj tshwj xeeb muaj nuj nqi, nws yog tau nyob rau hauv cov kuj ntsuas hom. Los ntawm switching lub 'meter' nyob rau hauv no hom, koj yuav tsum mus kov qhov probes mus rau lub capacitor ua rau yus thiab tos ib tug ob peb lub vib nas this mus xyuas lub readings. Yog hais tias lub twj paj nruag nyob infinitely loj kuj muaj nqis - lub capacitor yog OK, yog hais tias tus zero - tawm ntawm kev txiav txim. Yog hais tias tus xov tooj rau ntawm cov zaub qhia tau hais tias ib co intermediate nqi, tus capacitor muaj ib tug los thiab poob ib co xwb.

Yog li, lub peev xwm ntawm lub 'meter' tsis muaj pov thawj muaj nuj nqi tso cai rau koj kom meej xwb cov zoo cov yam ntxwv ntawm cov capacitor, tab sis, yam tsawg kawg, ua rau nws tau kos cov lus xaus hais txog qhov yuav tsum tau los hloov nws.

Txawm li cas los, qhov kev xeem no yoojyim unanswered tom ntej no lo lus nug - yuav ua li cas mus saib capacitor Circuit Court. Puas no zoo muaj peev xwm tshwm sim yog ib tug cov los yog kiag li cuam tshuam dielectric sam xeeb nyob rau hauv lub cell. Xws li ib tug capacitor kuj qhia tau hais tias infinite kuj, tab sis cia siab rau no daim duab ua pov thawj ntawm nws zoo yog tsis yooj yim sua.

Paub li cas los xyuas capacitor tester, koj muaj peev xwm kuj txiav txim seb nws muaj peev xwm txwv teev tolerances. Paub txog qhov tiag tiag muaj peev xwm yog tsim nyog rau ua ib tug kev txiav txim siab txog nws hloov los yog ntxiv siv.