Luyini uphawu lwe-microfarad ku-multimeter?

Uma ungumuntu osebenza ngogesi noma usanda kuqalisa ngogesi, udinga ukuqaphela amayunithi kagesi ahlukahlukene. Enye yalezi microfarad.

So Luyini uphawu lwe-microfarad ku-multimeter?? Ake siphendule lo mbuzo.

Sisebenzisa kuphi ama-microfarad?

Ama-Microfarad asetshenziswa ezinhlobonhlobo zemishini kagesi, kufaka phakathi ama-capacitor, ama-transistors, namasekethe ahlanganisiwe.

Kodwa imvamisa uzohlangana nabo lapho ukala i-capacitance ye-capacitor.

Iyini i-capacitor?

I-capacitor iyingxenye ye-elekthronikhi esetshenziselwa ukugcina ukushaja kagesi. Iqukethe amapuleti ensimbi amabili abekwe eduze kanye nento engekho conductive (ebizwa ngokuthi i-dielectric) phakathi.

Lapho i-electric current idlula ku-capacitor, ishaja amapuleti. La mandla kagesi agciniwe angasetshenziswa ukuphehla izinto zikagesi.

Ama-Capacitor asetshenziswa ezinhlobonhlobo zezinto zikagesi, okuhlanganisa amakhompiyutha, omakhalekhukhwini kanye nemisakazo.

Kunezinhlobo ezimbili eziyinhloko zama-capacitor:

Ama-Polar Capacitors

Ama-polar capacitor awuhlobo lwama-electrolytic capacitor asebenzisa i-electrolyte ukunikeza indlela yama-electron. Lolu hlobo lwe-capacitor lusetshenziswa ezinhlelweni ezahlukahlukene ezihlanganisa amandla kagesi, ukuxhumana, ukuqaqa, nokuhlunga.

Ama-Electrolytic capacitor ngokuvamile amakhulu futhi ane-capacitance ephakeme kunezinye izinhlobo zama-capacitor.

I-Non-polar capacitor

Ama-Non-polar capacitor awuhlobo lwe-capacitor olugcina amandla endaweni kagesi. Lolu hlobo lwe-capacitor alunayo i-electrode ye-polarizing, ngakho insimu kagesi i-symmetrical.

Ama-non-polar capacitor asetshenziswa kumishini eyahlukene, okuhlanganisa imisakazo, omabonakude, nezinye izinto zikagesi.

Ayini amatheminali e-capacitor?

I-capacitor inamatheminali amabili: itheminali ephozithivu kanye netheminali enegethivu. Itheminali ephozithivu ivamise ukuphawulwa ngophawu "+", kanye netheminali enegethivu enophawu "-".

Amatheminali aklanyelwe ukuxhuma i-capacitor kumjikelezo kagesi. Itheminali ephozithivu ixhunywe kugesi futhi itheminali enegethivu ixhunywe phansi.

Indlela yokufunda i-capacitor?

Ukuze ufunde i-capacitor, udinga ukwazi izinto ezimbili: i-voltage kanye ne-capacitance.

I-Voltage inani lomehluko ongaba khona kagesi phakathi kwamatheminali amahle kanye namabi e-capacitor. I-Capacitance yikhono le-capacitor ukugcina ishaji kagesi.

I-voltage ivame ukubhalwa ku-capacitor, kuyilapho i-capacitance ivame ukubhalwa eceleni kwe-capacitor.

Uphawu lwe-Microfarad ku-multimeter

Uphawu lwama-microfarad luyi-"uF", ozoluthola odayelini lwe-multimeter yakho. Ungayibona futhi ibhalwe ngokuthi "uF". Ukuze ulinganise ngama-microfarad, setha i-multimeter endaweni ethi "uF" noma "uF".

Iyunithi ejwayelekile ye-capacitance ithi farad (F). I-microfarad iyisigidi esisodwa se-farad (0.000001 F).

I-microfarad (µF) isetshenziselwa ukukala amandla engxenye kagesi noma isekethe. Amandla engxenye kagesi noma isekethe yikhono lokugcina ishaji kagesi.

Imiqondo eyisisekelo mayelana neyunithi ye-Farad

I-Farad iyunithi yokulinganisa amandla. Iqanjwe ngesazi sefiziksi saseNgilandi uMichael Faraday. I-farad ikala ukuthi ingakanani ishaji kagesi egcinwe ku-capacitor.

Etafuleni ungabona amayunithi ahlukene we-farad, kanye nezilinganiso zawo.

имя	uphawu	Izinguquko	isibonelo
e picofara	pF	1pF = 10-12F	C=10 pF
нФ	nF	1 nF = 10-9F	C=10 nF
kuhhavini ye-microwave	uF	1 µF = 10-6F	C=10uF
millifarad	mF	1 mF = 10-3F	C=10 mF
i-фарада	F	S=10F
kilofarad	kF	1kF=103F	C=10kF
ama-megatariffs	MF	1MF=106F	S=10MF

Amanani omthamo kuma-farads

Indlela yokulinganisa i-microfarad?

Ukuze uhlole i-capacitance ye-capacitor, uzodinga i-multimeter ekwazi ukulinganisa ama-microfarads. Ama-multimeter amaningi ashibhile awanawo lesi sici.

Ngaphambi kokulinganisa, qiniseka ukuthi ukhipha i-capacitor ukuze ungalimazi i-multimeter.

Okokuqala thola amatheminali amahle nebi we-capacitor. Kumshini we-polarized capacitor, enye yamatheminali izomakwa "+" (positive) kanti enye "-" (negative).

Bese uxhuma i-multimeter iholela kumatheminali e-capacitor. Qiniseka ukuthi i-probe emnyama ixhunywe kutheminali eyinegethivu futhi i-probe ebomvu ixhunywe kutheminali ephozithivu.

Manje vula i-multimeter yakho bese uyimisa ukuze ilinganise ama-microfarad (uF). Uzobona ukufundwa kuma-microfarad esibukweni.

Manje njengoba usuyazi ukuthi uphawu lwe-microfarad luyini nokuthi ungalulinganisa kanjani, ungaqala ukuzisebenzisa kumaphrojekthi akho kagesi.

Amathiphu Okuphepha Lapho Uhlola Ama-Capacitors

Ukulinganisa ama-capacitor kudinga izinyathelo ezithile zokuphepha.

Ngokucophelela nangokucabanga kusengaphambili, ungakwazi ukukala ama-capacitor ngaphandle kokulimaza idivayisi elinganisa wona noma wena.

• Gqoka amagilavu ​​awugqinsi ukuze uvikele izandla zakho.
• Uma i-capacitor icindezelwa emzimbeni wakho (isibonelo, uma uyikala ngemuva kwe-amplifier noma enye indawo eqinile), yima endaweni eyomile, evalekile (njengocansi lwenjoloba) ukuze ugweme ukushaqeka kukagesi.
• Sebenzisa i-voltmeter yedijithali enembile, elinganiselwe kahle esethwe ebangeni elifanele. Ungasebenzisi i-analog voltmeter (inkomba ehambayo) engase yonakaliswe amaza aphezulu lapho uhlola ama-capacitor.
• Uma ungenaso isiqiniseko sokuthi i-capacitor i-polarized (inamatheminali angu-+ kanye -), hlola imininingwane yayo. Uma i-database ingekho, cabanga ukuthi i-polarized.
• Ungayixhumi i-capacitor ngqo kumatheminali okuphakela amandla ngoba lokhu kungase konakalise i-capacitor.
• Lapho ukala i-DC voltage ku-capacitor, qaphela ukuthi i-voltmeter ngokwayo izothinta ukufundwa. Ukuze uthole ukufundwa okunembile, qala ulinganise i-voltage ngezintambo zamamitha ezifinyeziwe, bese ukhipha leyo voltage "echemile" ekufundeni ngezintambo zamamitha ezixhunywe ku-capacitor.

isiphetho

Manje njengoba uyazi ukuthi uphawu lwe-microfarad lubukeka kanjani, ungakwazi ukukala i-capacitor nge-multimeter yedijithali. Sithemba ukuthi lo mhlahlandlela ukusizile ukuthi uqonde ukuthi i-farads isebenza kanjani njengeyunithi yokulinganisa.