Photocell
Isixhobo esibona ukukhanya.Isetyenziselwa iimitha zokukhanya kweefoto, izibane zesitrato ezizenzekelayo ngo-ngorhatya kunye nezinye izicelo ezibuthathaka kukukhanya, i-photocell iyahluka ukuchasana kwayo phakathi kweetheminali zayo ezimbini ngokusekelwe kwinani leefotoni (ukukhanya) elifumanayo.Ikwabizwa ngokuba yi "photodetector," "photoresistor" kunye "nokukhanya okuxhomekeke ekukhanyeni" (LDR).
Imathiriyeli ye-photocell's semiconductor iqhelekile yi-cadmium sulfide (CdS), kodwa ezinye izinto ziyasetyenziswa.Iifoto kunye neefotodiode zisetyenziselwa izicelo ezifanayo;nangona kunjalo, i-photocell idlula ngoku-bi-directionally, ngelixa i-photodiode i-unidirectional.
Ifotodiode
Inzwa yokukhanya (i-photodetector) evumela ukuba i-current ihambe kwicala elinye ukusuka kwelinye icala ukuya kwelinye xa ithatha iifotoni (ukukhanya).Ukukhanya ngakumbi, ngakumbi okwangoku.Isetyenziselwa ukufumanisa ukukhanya kwi-sensors zekhamera, iifibers ze-optical kunye nezinye izicelo ezikhanyayo, i-photodiode ichasene ne-diode ekhupha ukukhanya (jonga i-LED).Iifotodiode zibona ukukhanya kwaye zivumele ukuhamba kombane;Ii-LED zifumana umbane kwaye zikhupha ukukhanya.
Iiseli zeSolar ziiFotodiode
Iiseli zelanga zi-photodiodes eziphathwa ngekhemikhali (i-doped) ngokwahlukileyo kune-photodiode esetyenziswa njengetshintshi okanye i-relay.Xa iiseli zelanga zibethwe kukukhanya, izinto zabo ze-silicon ziyavuya ukuya kwimeko apho umbane omncinci wenziwa khona.Uluhlu oluninzi lweefotodiode zeeseli zelanga ziyafuneka ukunika amandla indlu.
Ifototransistor
I-transistor esebenzisa ukukhanya kunombane ukwenza ukuba umsinga wombane uhambe ukusuka kwelinye icala ukuya kwelinye.Isetyenziswa kwiindidi zoluvo ezibona ubukho bokukhanya.Iifototransistors zidibanisa ifotodiode kunye ne-transistor kunye ukuvelisa iziphumo ezingaphezulu zangoku kunefotodiode ngokwayo.
Umbane wefoto
Ukuguqula iifotoni zibe yi-electron.Xa ukukhanya kulayitiwe kwisinyithi, ii-electron ziphuma kwiiathom zayo.Okukhona iphezulu ukukhanya rhoqo, kokukhona amandla e-electron akhululwayo.I-Photonic sensors yazo zonke iintlobo zisebenza kulo mgaqo, umzekelo i-photocell, kunye ne-photovoltaic cell sisixhobo sombane.Ziva ukukhanya kwaye zibangela ukuba umsinga wombane uhambe.
ukwakhiwa
i-photocell iqulethe ityhubhu yeglasi ekhutshiweyo equlethe i-electrode emitter emibini kunye nomqokeleli.i-emitter imile ngendlela ye-semi-hollow cylinder.isoloko igcinwe kwisakhono esingalunganga.umqokeleli ukwimo yentonga yensimbi kwaye igxininiswe kwi-axis ye-semi-cylindrical emitter.umqokeleli uhlala egcinwe kwikhono elihle.ityhubhu yeglasi ifakwe kwisiseko esingeyiyo isinyithi kwaye izikhonkwane zibonelelwa kwisiseko soqhagamshelo lwangaphandle.
ukusebenza
i-emitter iqhagamshelwe kwi-terminal engalunganga kwaye umqokeleli uqhagamshelwe kwi-terminal eqinisekileyo yebhetri.Ukusasazeka kwemitha ye-frequency ngaphezu komda wokuphindaphinda kwezinto ezikhuphayo kwenziwa isiganeko kwi-emitter.Ukukhutshwa kweefoto kuyenzeka.ifoto-electrons zitsalwa umqokeleli nto leyo elungileyo wrt emitter ngaloo ndlela impompoza yangoku kwisekethe.ukuba ubunzulu bemitha yezehlo bonyuswa ukonyuka kombane wefoto.
Abanye bethu imeko yesicelo solawulo lwefoto
Umsebenzi we-photocell switch kukubona amanqanaba okukhanya kwelanga, kwaye emva koko uvule okanye ucime izinto ezifakwe kuzo.Le teknoloji inokusetyenziswa ngeendlela ezininzi, kodwa omnye wemizekelo eqhelekileyo iya kuba zizibane zesitalato.Ndiyabulela kwi-photocell sensors kunye nokutshintsha, zonke zinokuvulwa kwaye zicinywe ngokuzenzekelayo kwaye ngokuzimeleyo ngokusekelwe ekutshoneni kwelanga kunye nokuphuma kwelanga.Oku kunokuba yindlela entle yokonga amandla, ukukhanyisa ukhuseleko oluzenzekelayo okanye nokuba izibane zegadi yakho zikhanyise iindlela zakho ebusuku ngaphandle kokuzilayita.Kukho iindlela ezininzi ezahlukeneyo zokusebenzisa ii-photocells kwizibane zangaphandle, kwiindawo zokuhlala, zorhwebo okanye zoshishino.Kufuneka ube nefowuni enye yokutshintsha i-photocell kwisekethe ukuze ukwazi ukulawula zonke izixhobo, ngoko akukho mfuneko yokuthenga iswitshi enye kwisibane ngasinye.
Kukho iintlobo ezininzi ezahlukeneyo zokutshintsha kweefotocell kunye nolawulo, zonke zilungele iimeko ezahlukeneyo kunye nezinto ezahlukeneyo.Olona tshintsho lulula ukunyuswa luya kuba sisikhondo sokunyuswa kweefotocell.Izilawuli ze-swivel zikwalula kakhulu ukuzifaka kodwa zibonelela ngokuguquguquka ngakumbi.I-Twist-Lock photocontrols inzima ngakumbi ukuyifaka, nangona kunjalo yomelele ngakumbi kwaye yakhelwe ukumelana nokungcangcazela kunye neempembelelo ezincinci ngaphandle kokwaphuka okanye ukubangela uqhagamshelo kwisekethe.Iifotocell zeqhosha zifaneleke kakuhle kwizibane zangaphandle, eziyilelwe ukuba zixhonywe ngokulula.
Umthombo wedatha ofumanekayo:
1. www.pcmag.com/encyclopedia/term/photocell
2. lightbulbsurplus.com/parts-components/photocell/
3. learn.adafruit.com/photocells
4. thefactfactor.com/facts/pure_science/physics/photoelectric-cell/4896/
5. www.elprocus.com/phototransistor-basics-circuit-diagram-advantages-applications/
Ixesha lokuposa: Jul-16-2021