Taxanaha Sawir-qaade: Hordhaca Sawir-qaade Balance

Hordhac kuBalance Photodetector(Balan-baaraha Optoelectronic)
Balance Photodetector waxa loo qaybin karaa nooca isku xidhka fiber optic-ga iyo nooca isku xidhka indhaha ee meel bannaan iyadoo loo eegayo habka isku xidhka indhaha. Gudaha, waxa ay ka kooban tahay laba photodiodes oo aad isula jaan qaadaya, sanqadh hoose, moduleka wareegga wareegga xawilaadda xawilaadda xawaaraha sare, iyo module awood qaylada aadka u hooseeya. Waxay leedahay sifooyinka saamiga diidmada qaabka caadiga ah ee sarreeya, qaylada aadka u hooseeya, iyo baaxadda xajmiyeedka sare, waxaana si ballaaran loo adeegsadaa goobta isgaarsiinta indhaha ee isku xiran. Waxa ay noqotay goob cilmi-baadhiseed oo loogu talagalay shirkadaha iyo jaamacadaha dalal kala duwan sannadihii u dambeeyay.
Mabda'a shaqada ee Balance Photodetector (Dareemiyaha Dheelitirka indhaha)
Balance Photodetector wuxuu isticmaalaa laba sawir-qaade oo ah xaalad eexasho oo ka duwan unugga nalka helaya. Marka la helayo signalka iftiinka, sawirka hadda jira ee ay dhaliyaan laba photodiodes waa la gooyaa oo lagu lammaaniyaa cod-weyneeye ku-meel-gaar ah si loogu beddelo calaamadda hadda jirta calaamad koronto oo wax soo saar leh. Isticmaalka qaab-dhismeedka is-dhimista ayaa si wax ku ool ah u xakameyn kara calaamadda habka caadiga ah ee ay soo bandhigtay iftiinka oscillator-ka maxalliga ah iyo hadda mugdiga ah, waxay kordhisaa calaamada qaabka kala duwan, iyo ilaa xad waxay wanaajisaa awoodda ogaanshaha calaamadaha iftiinka daciifka ah.
Faa'iidooyinka: Saamiga diidmada habka caadiga ah ee sarreeya, dareenka sare, iyo ogaanshaha baaxadda sare waxay la kulmi kartaa xaalado codsi oo kala duwan.
Khasaaro: Awood indho-indheyn oo hooseeysa, oo ku habboon kaliya ogaanshaha iftiinka daciifka ah, isdhexgalka ayaa u baahan in la hagaajiyo.

FIG: jaantuska mabda'a shaqada ee baaraha dheelitirka
Halbeegyada waxqabadka ee Balance Photodetector (OptoelectronicBalance Detector)
1. Wax ka qabasho
Ka jawaabista waxaa loola jeedaa waxtarka photodiode-ka ee u beddelaya calaamadaha iftiinka ee hadda jira, taas oo ah saamiga sawirka hadda jira iyo awoodda iftiinka. Doorashada sawir-qaade leh jawaab-celin sare waxay si wax ku ool ah u wanaajin kartaa dareenka Sawir-qaade Balance ah.
Ka jawaabista waxaa loola jeedaa waxtarka photodiode-ka ee u beddelaya calaamadaha iftiinka ee hadda jira, taas oo ah saamiga sawirka hadda jira iyo awoodda iftiinka. Doorashada sawir-qaade leh jawaab-celin sare waxay si wax ku ool ah u wanaajin kartaa dareenka Sawir-qaade Balance ah.
2. Bandwidth
Xajmiga wuxuu ka dhigan yahay inta jeer ee signalka kaas oo baaxadda calaamadda soo saarista ee Balance Photodetector ay burburto -3dB, waxayna la xiriirtaa awoodda dulinka ee photodiode, cabbirka transimpedance, iyo faa'iidada faa'iidada bandwidth ee cod-weyneeye hawleedka.
3. Saamiga diidmada habka caadiga ah
Saamiga diidmada habka caadiga ah waxaa loo isticmaalaa in lagu cabbiro heerka xakamaynta calaamadaha habka caadiga ah ee qalabka wax-sheegayaasha dheellitiran, iyo badeecadaha ganacsigu guud ahaan waxay u baahan yihiin ugu yaraan habka caadiga ah ee diidmada 25dB.
4.NEP
Awood u dhiganta Sawaxanka: Awoodda signalka wax gelinta ee looga baahan yahay saamiga signal-ilaa-sanqa ee 1, kaas oo ah halbeeg muhiim ah oo lagu cabbirayo waxqabadka qaylada ee nidaamka. Qaybaha ugu muhiimsan ee qaylada isku-dheelitirka ah ee isku-dheelitirka ah waa dhawaaqa fidinta indhaha iyo qaylada korantada.

Codsiga Balance-ka Sawir-qaade (Balance Balance Optoelectronic)
Sanadihii la soo dhaafay, Balance Photodetector ayaa si ballaaran loo isticmaalaa in beeraha sida radar dabaysha laser, cabbirka gariirka laser, dareenka fiber optic, ogaanshaha iftiinka daciif ah, ogaanshaha spectral, ogaanshaha gaaska, iwm.