Intangiriro ya ammeter

Incamake

Ammeter nigikoresho gikoreshwa mugupima ibizunguruka muri AC na DC.Igishushanyo cyizunguruka, ikimenyetso cya ammeter ni "umuzenguruko A".Indangagaciro zubu ziri muri "amps" cyangwa "A" nkibice bisanzwe.

Ammeter ikorwa ukurikije ibikorwa byumuyoboro utwara amashanyarazi mu murima wa magneti ukoresheje imbaraga za magneti.Hariho rukuruzi ihoraho imbere ya ammeter, itanga umurima wa rukuruzi hagati yinkingi.Hano hari coil mumashanyarazi.Hano hari isoko yimisatsi kuri buri mpera ya coil.Buri soko ihujwe na terminal ya ammeter.Uruziga ruzunguruka ruhujwe hagati yisoko na coil.Imbere ya ammeter, hari icyerekezo.Iyo hari umuyoboro unyuramo, umuyoboro unyura mumaseti ya magnetiki kumasoko no kuzunguruka, hanyuma ikagabanya umurongo wumurongo wa magneti, bityo coil ikayoborwa nimbaraga zumurima wa rukuruzi, utwara uruziga ruzunguruka na Iyerekana Kuri Gutandukana.Kuva ubunini bwimbaraga za magnetique bwiyongera hamwe no kwiyongera kwumuyaga, ubunini bwumuyaga burashobora kugaragara binyuze muguhindura icyerekezo.Ibi byitwa magnetoelectric ammeter, nubwoko dusanzwe dukoresha muri laboratoire.Mugihe cyamashuri yisumbuye, intera ya ammeter ikoreshwa ni 0 ~ 0.6A na 0 ~ 3A.

ihame ry'akazi

Ammeter ikorwa ukurikije ibikorwa byumuyoboro utwara amashanyarazi mu murima wa magneti ukoresheje imbaraga za magneti.Hariho rukuruzi ihoraho imbere ya ammeter, itanga umurima wa rukuruzi hagati yinkingi.Hano hari coil mumashanyarazi.Hano hari isoko yimisatsi kuri buri mpera ya coil.Buri soko ihujwe na terminal ya ammeter.Uruziga ruzunguruka ruhujwe hagati yisoko na coil.Imbere ya ammeter, hari icyerekezo.Gutandukana.Kuva ubunini bwimbaraga za magnetique bwiyongera hamwe no kwiyongera kwumuyaga, ubunini bwumuyaga burashobora kugaragara binyuze muguhindura icyerekezo.Ibi byitwa magnetoelectric ammeter, nubwoko dusanzwe dukoresha muri laboratoire.

Mubisanzwe, imigezi ya gahunda ya microamps cyangwa milliamps irashobora gupimwa muburyo butaziguye.Kugirango upime imigezi minini, ammeter igomba kugira iringaniza iringaniye (izwi kandi nka shunt).Uburyo bwo gupima metero ya magnetoelectric ikoreshwa cyane.Iyo agaciro ko guhangana na shunt nugukora igipimo cyuzuye cyubu, ammeter ihindagurika rwose, ni ukuvuga, kwerekana ammeter igera kuri byinshi.Kumurongo wa amps make, shunt zidasanzwe zirashobora gushirwa muri ammeter.Kumurongo uri hejuru ya amps menshi, shunt yo hanze irakoreshwa.Agaciro ko kurwanya agaciro-kari hejuru ya shunt ni nto cyane.Kugirango wirinde amakosa yatewe no kongeramo imbaraga zo kurwanya no guhangana na shunt, shunt igomba gukorwa muburyo bune bwa terefone, ni ukuvuga ko hano haribintu bibiri byubu hamwe na voltage ebyiri.Kurugero, mugihe shunt yo hanze na milivoltmeter bikoreshwa mugupima umuyaga munini wa 200A, niba urwego rusanzwe rwa milivoltmeter yakoreshejwe ari 45mV (cyangwa 75mV), noneho agaciro ko kurwanya shunt ni 0.045 / 200 = 0.000225Ω (cyangwa 0.075 / 200 = 0.000375Ω).Niba impeta (cyangwa intambwe) shunt ikoreshwa, ammeter-intera irashobora gukorwa.

Agusaba

Ammeter ikoreshwa mugupima indangagaciro zubu muri AC na DC.

1. Guhinduranya ubwoko bwa coil ammeter: ifite shunt kugirango igabanye sensibilité, irashobora gukoreshwa kuri DC gusa, ariko ikosora nayo irashobora gukoreshwa kuri AC.

2. Guhinduranya urupapuro rw'icyuma ammeter: Iyo umuyaga wapimwe unyuze muri coil ihamye, havamo umurima wa magneti, kandi urupapuro rworoshye rwicyuma ruzunguruka mumashanyarazi yakozwe, rushobora gukoreshwa mugupima AC cyangwa DC, biramba, ariko ntabwo aribyiza nkibizunguruka coil ammeter Yumva.

3. Ammeter ya Thermocouple: Irashobora kandi gukoreshwa kuri AC cyangwa DC, kandi harimo résistoriste.Iyo ikigezweho gitemba, ubushyuhe bwa résistoriste burazamuka, résistor iba ihuye na thermocouple, hanyuma thermocouple igahuzwa na metero, bityo igakora ubwoko bwa termocouple Ammeter, iyi metero itaziguye ikoreshwa cyane mugupima umuvuduko mwinshi uhinduranya umuyaga.

4. Ammeter y'insinga zishyushye: Iyo zikoreshwa, shyira impande zombi z'umugozi, insinga irashyuha, kandi kwaguka kwayo gutuma icyerekezo kizunguruka ku munzani.

Ibyiciro

Ukurikije imiterere yumuyaga wapimwe: DC ammeter, AC ammeter, AC na DC metero ebyiri-intego;

Ukurikije ihame ryakazi: ametero ya magnetoelectric, ammeter ya electromagnetic, ammeter;

Ukurikije ibipimo byo gupima: milliampere, microampere, ammeter.

Igitabo cyo gutoranya

Uburyo bwo gupima ammeter na voltmeter mubusanzwe burasa, ariko guhuza mumuzingo wo gupima biratandukanye.Kubwibyo, ingingo zikurikira zigomba kwitonderwa muguhitamo no gukoresha ammeter na voltmeter.

⒈ Ubwoko bwo guhitamo.Iyo ibipimo ari DC, metero ya DC igomba gutoranywa, ni ukuvuga metero ya sisitemu ya magnetoelectric sisitemu yo gupima.Iyo AC yapimwe, igomba kwitondera imiterere yayo ninshuro.Niba ari umuyaga wa sine, irashobora guhindurwa mubindi byagaciro (nkigiciro ntarengwa, agaciro kagereranijwe, nibindi) gusa mugupima agaciro keza, kandi ubwoko bwa metero ya AC burashobora gukoreshwa;niba ari umuraba utari sine, ugomba gutandukanya ibigomba gupimwa Kubiciro bya rms, igikoresho cya sisitemu ya magnetique cyangwa sisitemu y'amashanyarazi ya ferromagnetic irashobora gutoranywa, kandi impuzandengo yikigereranyo cyibikoresho bya sisitemu yo gukosora irashobora kuba Byahiswemo.Igikoresho cya sisitemu yo gupima sisitemu y'amashanyarazi ikoreshwa kenshi mugupima neza neza guhinduranya amashanyarazi na voltage.

Guhitamo ukuri.Nibisobanuro byukuri byigikoresho, nigiciro gihenze kandi kubungabunga bigoye.Byongeye kandi, niba ibindi bintu bidahuye neza, igikoresho gifite urwego rwo hejuru ntirushobora kubona ibisubizo nyabyo byo gupima.Kubwibyo, mugihe cyo guhitamo igikoresho gito-cyuzuye kugirango cyuzuze ibisabwa byo gupimwa, ntuhitemo igikoresho cyukuri.Mubisanzwe metero 0.1 na 0.2 zikoreshwa nka metero zisanzwe;Metero 0.5 na 1.0 zikoreshwa mugupima laboratoire;ibikoresho biri munsi ya 1.5 bikoreshwa mubipimo byubuhanga.

Guhitamo urutonde.Kugirango utange umukino wuzuye kuruhare rwukuri rwibikoresho, birakenewe kandi guhitamo neza imipaka yigikoresho ukurikije ubunini bwapimwe.Niba guhitamo bidakwiye, ikosa ryo gupima rizaba rinini cyane.Mubisanzwe, kwerekana igikoresho kigomba gupimwa kirenze 1/2 ~ 2/3 cyurwego ntarengwa rwibikoresho, ariko ntibishobora kurenga urugero rwacyo.

Guhitamo kurwanya imbere.Mugihe uhitamo metero, imbere yimbere ya metero nayo igomba gutoranywa ukurikije ubunini bwapedance yapimwe, bitabaye ibyo bikazana ikosa rinini ryo gupima.Kuberako ubunini bwimbere bwimbere bugaragaza ingufu za metero ubwayo, mugihe upimye umuyaga, ammeter hamwe nimbaraga ntoya imbere igomba gukoreshwa;mugihe upima voltage, voltmeter hamwe nimbaraga nini imbere igomba gukoreshwa.

Maintenance

1. Kurikiza byimazeyo ibisabwa nigitabo, hanyuma ubike kandi ubikoreshe mugihe cyemewe cyubushyuhe, ubushuhe, umukungugu, kunyeganyega, amashanyarazi ya electronique nibindi bihe.

2. Igikoresho kibitswe igihe kinini kigomba kugenzurwa buri gihe kandi kigomba kuvaho.

3. Ibikoresho byakoreshejwe igihe kinini bigomba gukorerwa ubugenzuzi no gukosorwa ukurikije ibisabwa byo gupima amashanyarazi.

4. Ntugasenye kandi ucukure igikoresho uko wishakiye, bitabaye ibyo ibyiyumvo byacyo hamwe nukuri bizagira ingaruka.

5. Kubikoresho bifite bateri zashyizwe muri metero, witondere kugenzura isohoka rya bateri, hanyuma uyisimbuze mugihe kugirango wirinde gutwarwa na electrolyte ya batiri no kwangirika kwibice.Kuri metero idakoreshwa igihe kinini, bateri muri metero igomba kuvaho.

Ibintu bikeneye kwitabwaho

1. Reba ibirimo mbere yuko ammeter ishyirwa mubikorwa

a.Menya neza ko ibimenyetso biriho bihujwe neza kandi nta kintu gifunguye kizunguruka;

b.Menya neza ko icyiciro gikurikirana ibimenyetso byubu aribyo;

c.Menya neza ko amashanyarazi yujuje ibisabwa kandi ahujwe neza;

d.Menya neza ko umurongo w'itumanaho uhujwe neza;

2. Kwirinda gukoresha ammeter

a.Kurikiza byimazeyo inzira zikorwa nibisabwa muri iki gitabo, kandi ubuze ibikorwa byose kumurongo wibimenyetso.

b.Mugihe cyo gushiraho (cyangwa guhindura) ammeter, menya neza ko amakuru yashyizweho arukuri, kugirango wirinde imikorere idasanzwe ya ammeter cyangwa amakuru yikizamini nabi.

c.Mugihe usoma amakuru ya ammeter, bigomba gukorwa hubahirijwe uburyo bukoreshwa niki gitabo kugirango wirinde amakosa.

3. Urutonde rwo gukuraho Ammeter

a.Hagarika imbaraga za ammeter;

b.Mugufi-kuzenguruka umurongo wibimenyetso byambere, hanyuma ubikureho;

c.Kuraho umugozi w'amashanyarazi n'umurongo w'itumanaho wa ammeter;

d.Kuraho ibikoresho kandi ubigumane neza.

TRoubleshooting

1. Ikosa

Fenomenon a: Ihuza ryumuzingi nukuri, funga urufunguzo rwamashanyarazi, wimure igice cyanyerera cya rheostat kunyerera kuva kumubare ntarengwa wo kurwanya kugeza ku giciro gito cyo guhangana, umubare werekana ntabwo uhinduka ubudahwema, gusa zeru (urushinge ntirugenda ) cyangwa kwimura gato igice cyo kunyerera kugirango werekane agaciro ka offset yuzuye (urushinge rujya mumutwe vuba).

Fenomenon b: Ihuriro ryumuzingi nukuri, funga urufunguzo rwamashanyarazi, icyerekezo cya ammeter kizunguruka cyane hagati ya zeru nagaciro kuzuye.

2. Isesengura

Inzira ibogamye yuzuye yumutwe wa ammeter ni urwego rwa microampere, kandi intera yaguwe muguhuza shunt résistor parallel.Impuzandengo ntarengwa mumuzunguruko rusange ni milliampere, niba rero ntamwanya uhari wa shunt, metero yerekana izabogama byuzuye.

Impera zombi zumurwanya wa shunt zifatanijwe hamwe nudusanduku tubiri twagurishijwe hamwe nu mpande zombi zumutwe wa metero hamwe nimbuto zo hejuru no hepfo zifata kumurongo hamwe na posita.Imbuto zifatika ziroroshye kurekura, bikavamo gutandukana kurwanya shunt hamwe numutwe wa metero (Hano haribintu byananiranye a) cyangwa guhura nabi (phenomenon yo gutsindwa b).

Impamvu yo guhinduka gutunguranye mumibare ya metero umutwe ni uko iyo umuzenguruko ufunguye, igice cyo kunyerera cya varistor gishyirwa kumwanya ufite agaciro kanini cyane, kandi igice cyo kunyerera akenshi cyimurirwa muri farashi ikingira. umuyoboro, utera uruziga kumeneka, numero yerekana noneho ni: zeru.Noneho wimure igice cyo kunyerera gato, hanyuma gihure numuyoboro wokurwanya, kandi umuzenguruko urafunguye rwose, bituma umubare werekana ibimenyetso uhinduka muburyo butunguranye kubogama kwuzuye.

Uburyo bwo kurandura ni ugukomeretsa ibinyomoro bifunga cyangwa gusenya igifuniko cyinyuma cya metero, gusudira impera zombi za rezistor ya shunt hamwe nu mpande zombi zumutwe wa metero, hanyuma ukazisudira mumigozi ibiri yo gusudira.