Isesengura rya Sisitemu Amakosa ya Photodetector

Isesengura rya Sisitemu Amakosa ya Photodetector

I. Intangiriro kubintu bigira ingaruka kumikorere ya sisitemu muriPhototetector

Ibitekerezo byihariye kubibazo bya sisitemu birimo: 1. Guhitamo ibice:fotodi, ibikorwa byongera imbaraga, résistoriste, capacator, ADCs, ics itanga amashanyarazi, hamwe nisoko ya voltage. 2. Ibidukikije bikora: Ingaruka yubushyuhe nubushuhe, nibindi 3. Sisitemu yo kwizerwa: Sisitemu ihamye, imikorere ya EMC.

Ii. Sisitemu Ikosa Isesengura rya Photodetector

1. Photodiode: Muri agutahura amashanyaraziSisitemu, Ingaruka ya Photodiode ku makosa yasisitemu y'amashanyarazibigaragarira cyane cyane mu bice bikurikira:

. Ni ukuvuga, s = △ y / △ x. Sensitivity / resolution nicyo kintu cyibanze cyo guhitamo sensor. Iyi parameter igaragarira cyane muburyo bufitanye isano itaziguye ya fotodiode nkumuyaga wijimye, no muburyo bwihariye bwo kwerekana fotodetekeri nkimbaraga zingana urusaku (NEP). Kubwibyo, isesengura ryibanze ryikosa ritunganijwe risaba ko sensitivite (S) / gukemura igomba kuba hejuru kurenza ikosa risabwa kugirango huzuzwe ibisabwa na sisitemu yose y’amashanyarazi, kuko ingaruka zamakosa zatewe nibintu byavuzwe nyuma nazo zigomba gusuzumwa.

. yfs ni igipimo cyuzuye gisohoka, na △ Lm ni itandukaniro ntarengwa ryo kugereranya. Ibi bigaragarira cyane cyane kumurongo no kugwiza umurongo imbaraga za fotodetector.

. Gutandukana ntarengwa kwimbere no gusubira inyuma birasuzumwa.

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. Gutandukana k'ubushyuhe △ Tm iterwa no kugabanuka k'ubushyuhe ibarwa binyuze mu kubara ubushyuhe bwo kubara ubushyuhe bwibidukikije bikora △ T.

. Ingaruka yuzuye yo gutandukana ya fotodetector kuri sisitemu ibarwa binyuze mumafaranga.

. inyungu-yumurongo wibicuruzwa (GBW), igipimo cyica (SR), igihe cyo gushiraho, kugoreka kwuzuye.

Nubwo ibipimo byimikorere ikora ari ngombwa nkibice bigize sisitemu nko guhitamo fotodiode, kubera umwanya muto, ibisobanuro byihariye nibisobanuro ntabwo bizasobanurwa hano. Mu gishushanyo nyacyo cyo gufotora, ingaruka zibi bipimo ku makosa atunganijwe bigomba gusuzumwa. Nubwo ibipimo byose bidashobora kugira ingaruka zikomeye kubisabwa umushinga wawe, bitewe nibisabwa nyirizina hamwe nibisabwa bitandukanye, ibipimo byavuzwe haruguru bizagira ingaruka zitandukanye kumakosa atunganijwe.

Hano haribipimo byinshi kubikorwa byongera imbaraga. Kubwoko butandukanye bwibimenyetso, ibipimo nyamukuru bitera amakosa ya sisitemu birashobora kwibanda kubimenyetso bya DC na AC: Ibimenyetso bihindura DC Kwinjiza offset voltage Vos, Vos ubushyuhe bwa Vos, kwinjiza offset iriho Ios, kwinjiza kubogama Ib, kwinjiza inzitizi, urusaku (urusaku rwinjizwamo urusaku, urusaku rwinjira, urusaku rwinshi rwumuriro), igipimo cyo kwanga amashanyarazi (PSRR), igipimo rusange cyo kwangwa (CMRR). Ibimenyetso byerekana itandukaniro: Usibye ibipimo byavuzwe haruguru, ibikurikira nabyo bigomba kwitabwaho: ubushobozi bwinjiza, gufungura-gufungura inyungu (AoL), inyungu-yumurongo mugari (GBW), igipimo cyinshi (SR), igihe cyo gushinga, no kugoreka kwuzuye.