Nigute ushobora gupima impapuro zirwanya firime yoroheje?

Filime ntoya ikoreshwa mubikorwa bya semiconductor byose bifite kurwanya, kandi kurwanya firime bigira ingaruka itaziguye kumikorere yigikoresho. Mubisanzwe ntabwo dupima kurwanya byimazeyo ya firime, ariko dukoresha impapuro zo guhangana kugirango tuyiranga.

Ni ubuhe buryo bwo kurwanya impapuro no kurwanya amajwi?

Kurwanya amajwi, bizwi kandi ko birwanya amajwi, ni umutungo wihariye wibintu biranga uburyo ibintu bibangamira umuvuduko wamashanyarazi. Ikimenyetso gikunze gukoreshwa ρ kigereranya, igice ni Ω.

Kurwanya impapuro, bizwi kandi ko ari urupapuro rwerekana, izina ryicyongereza ni urupapuro rurwanya, rwerekeza ku gaciro ko kurwanya firime kuri buri gace. Ibimenyetso bisanzwe bikoreshwa amafaranga cyangwa ρs kugirango ugaragaze, igice ni Ω / sq cyangwa Ω / □

Isano iri hagati yibi ni: urupapuro rurwanya = ingano irwanya / ubunini bwa firime, ni ukuvuga amafaranga = ρ / t

Kuki gupima impapuro zirwanya?

Gupima ubukana bwa firime bisaba ubumenyi bwuzuye mubipimo bya geometrike ya metero (uburebure, ubugari, uburebure), ifite impinduka nyinshi kandi iragoye cyane kuri firime zoroshye cyane cyangwa zidasanzwe. Impapuro zirwanya gusa isano nubunini bwa firime kandi irashobora kugeragezwa byihuse kandi bitaziguye nta kubara bigoye.

Ni izihe filime zikeneye gupima impapuro?

Mubisanzwe, firime ziyobora na firime ya semiconductor bigomba gupimwa kugirango birwanye kwaduka, mugihe firime yerekana ko idakeneye gupimwa.
Muri doping ya semiconductor, hapimwa kandi impapuro zirwanya silikoni.

Nigute ushobora gupima kwaduka kwaduka?

Uburyo bune-busanzwe bukoreshwa muruganda. Uburyo bune-bushobora gupima kwaduka kare kuva kuri 1E-3 kugeza 1E + 9Ω / sq. Uburyo bune-probe burashobora kwirinda amakosa yo gupimwa bitewe nuburwanya bwo guhuza hagati ya probe na sample.

Uburyo bwo gupima:
1) Shiraho imirongo ine itondekanye neza hejuru yicyitegererezo.
2) Koresha imiyoboro ihoraho hagati yuburyo bubiri bwo hanze.
3) Menya ukurwanya mugupima itandukaniro rishobora kuba hagati yimikorere ibiri yimbere

RS: Kurwanya impapuro
ΔV: Guhindura imbaraga za voltage zapimwe hagati yimbere yimbere
I: Ibiriho ubu hagati yubushakashatsi bwo hanze