Kodi chizindikiro cha ampere multimeter chimatanthauza chiyani?

Zamkatimu

Kodi chizindikiro cha multimeter amplifier chimatanthauza chiyani?
Kufotokozera kwa chipangizocho
Kukaniza ndi magetsi
Amplifier zochulukitsa
Machidule
Momwe mungagwiritsire ntchito ammeter?

M'nkhaniyi, tikambirana tanthauzo la chizindikiro cha ammeter pa multimeter ndi momwe mungagwiritsire ntchito ammeter.

Kodi chizindikiro cha multimeter amplifier chimatanthauza chiyani?

Chizindikiro cha multimeter amplifier ndichofunika kwambiri ngati mukufuna kugwiritsa ntchito multimeter molondola. Multimeter ndi chida chofunikira kwambiri chomwe chingakuthandizeni nthawi zambiri. Itha kugwiritsidwa ntchito kuyesa mtundu wa mawaya, mabatire oyesa, ndikupeza zomwe zikupangitsa kuti dera lanu lisagwire bwino. Komabe, ngati simukumvetsa zizindikiro zonse pa multimeter, izo sizingakuthandizeni kwambiri.

Cholinga chachikulu cha chizindikiro cha amplifier ndikuwonetsa kuchuluka kwa zomwe zikuchitika kuzungulira dera. Izi zitha kuyesedwa polumikiza ma multimeter motsatizana ndi dera ndikuyesa kutsika kwamagetsi pawo (Lamulo la Ohm). Chigawo cha muyeso uwu ndi volts pa ampere (V / A). (1)

Chizindikiro cha amplifier chimatanthawuza gawo la ampere (A), lomwe limayesa mphamvu yamagetsi yomwe ikuyenda mozungulira. Kuyeza uku kungathenso kuwonetsedwa mu ma milliamp mA, kiloamps kA kapena megaamp MA kutengera kukula kapena kuchepera kwa mtengowo.

Kufotokozera kwa chipangizocho

Ampere ndi gawo la muyeso la SI. Imayesa kuchuluka kwa mphamvu yamagetsi yomwe ikuyenda pamfundo imodzi pamphindi imodzi. Ampere imodzi ndi yofanana ndi ma elekitironi 6.241 x 1018 akudutsa pamalo ena mu sekondi imodzi. Mwanjira ina, 1 amp = 6,240,000,000,000,000,000 ma elekitironi pamphindikati.

Kukaniza ndi magetsi

Kukaniza kumatanthawuza kutsutsa kwa kayendedwe ka magetsi pamagetsi. Kukaniza kumayesedwa mu ohms ndipo pali ubale wosavuta pakati pa voteji, panopa ndi kukana: V = IR. Izi zikutanthauza kuti mutha kuwerengera ma amps apano ngati mukudziwa mphamvu ndi kukana. Mwachitsanzo, ngati pali 3 volts ndi kukana 6 ohms, panopa ndi 0.5 amperes (3 kugawidwa ndi 6).

Amplifier zochulukitsa

m = milli kapena 10^-3
u = yaying'ono kapena 10^-6
n = nano kapena 10^-9
p = pico kapena 10^-12
k = kilogalamu ndipo amatanthauza "x 1000". Chifukwa chake, ngati muwona chizindikiro kA, zikutanthauza kuti mtengo wa x ndi 1000

Palinso njira ina yofotokozera mphamvu zamagetsi. Magawo omwe amagwiritsidwa ntchito kwambiri pa metric system ndi ampere, ampere (A), ndi milliamp (mA).

Fomula: I = Q/t pomwe:
I= magetsi mu amps (A)
Q = mtengo mu coulombs (C)
t= nthawi mumasekondi (s)

Mndandanda womwe uli pansipa ukuwonetsa machulukitsidwe ambiri ndi ma submultiples a ampere:

1 MAM = 1,000 Ohm = 1 kOhm
1 mkOm = 1/1,000 Ohm = 0.001 Ohm = 1 moOm
1 nOhm = 1/1,000,000 0 XNUMX Ohm = XNUMX

Machidule

Zina mwazofupikitsa zodziwika bwino zimatengera mphamvu yamagetsi yomwe mungakumane nayo. Ali:

mA - milliam (1/1000 amp)
μA - microampere (1/1000000 ampere)
nA - nanoampere (1/1000000000 ampere)

Momwe mungagwiritsire ntchito ammeter?

Ammeters amayesa kuchuluka kwa magetsi omwe alipo kapena kutuluka kwa magetsi mu ma amps. Ammeters adapangidwa kuti azilumikizidwa motsatizana ndi dera lomwe akuyang'anira. Ammeter imapereka kuwerengera kolondola kwambiri pamene dera likuyenda mokwanira powerenga.

Ma Ammeters amagwiritsidwa ntchito pazinthu zosiyanasiyana zamagetsi ndi zamagetsi, nthawi zambiri ngati zida zovuta kwambiri monga ma multimeter. Kuti mudziwe kukula kwa ammeter komwe kumafunikira, muyenera kudziwa kuchuluka komwe kukuyembekezeka. Kuchuluka kwa ma amps, kukulirakulira komanso kukulira kwa waya wofunikira kuti agwiritsidwe ntchito mu ammeter. Izi zili choncho chifukwa mphamvu yamagetsi imapanga mphamvu ya maginito yomwe imatha kusokoneza kuwerenga mawaya ang'onoang'ono.

Multimeters kuphatikiza ntchito zingapo mu chipangizo chimodzi, kuphatikizapo voltmeters ndi ohmmeters, ndi ammeters; izi zimawapangitsa kukhala othandiza kwambiri pazogwiritsa ntchito zosiyanasiyana. Amagwiritsidwa ntchito kwambiri ndi akatswiri amagetsi, akatswiri opanga zamagetsi ndi amalonda ena.

Onani zina mwazolemba zathu pansipa.