Izinto ezibangela impazamo kwinkquboii-photodetectors
Kukho iiparameter ezininzi ezinxulumene nempazamo yenkqubo yee-photodetectors, kwaye izinto ekufuneka ziqwalaselwe ziyahluka ngokwezicelo ezahlukeneyo zeprojekthi. Ke ngoko, uMncedisi woPhando lwe-JIMU Optoelectronic waphuhliswa ukunceda abaphandi be-optoelectronic basombulule ngokukhawuleza impazamo yenkqubo yee-photodetectors kwaye bakhe ngokukhawuleza iinkqubo ze-optoelectronic, ngaloo ndlela benciphisa umjikelo weprojekthi kwaye baphephe ukuqala ekuqaleni kohlalutyo kunye noyilo.
3. Ukuchasana
(1) Ixabiso lokuxhathisa: Ukukhethwa kwamaxabiso okuxhathisa afanelekileyo kubandakanyeka kwi-amplification factor yee-operating amplifier, i-balancing resistance, i-RC filtering, njl. Ixabiso lokuxhathisa akufuneki libe likhulu kakhulu, njengoko ixabiso lokuxhathisa likhulu, kokukhona isignali ibuthathaka, kokukhona ukusebenza kokuchasana nokuphazamiseka kusiba nzima, kwaye kokukhona ingxolo emhlophe yeGaussian inkulu. Akufanele ibe ncinci kakhulu, njengoko ukusetyenziswa kwamandla kuya kwanda kwaye kunokuvelisa ubushushu kwaye kuchaphazele ubomi.
(2) Amandla: Qinisekisa ukuba i-P=I^2*R ayidluli kumandla ayo alinganiselweyo, kwaye ukuthintela i-resistor ekutshiseni kakhulu, akufuneki idlule kwisiqingatha samandla ayo alinganiselweyo.
(3) Ukuchaneka: Akunampembelelo ingako ekuchanekeni kwenkqubo yokulungisa kwakhona.
(4) Ukushukuma kobushushu: Ukushukuma kobushushu bee-resistor yinto ebalulekileyo ekuqwalaselweni ekubalweni kweempazamo zenkqubo.
4. Isibambisi-mandla
(1) Ixabiso le-Capacitance: Kwiisekethe ezinxulumene ne-RC filt, ii-time constants, njl.njl., ixabiso le-capacitance kufuneka libalwe ngokuchanekileyo. Uyilo lwenkqubo alunakuyityeshela i-time constant yokusekwa kwesignali ukuze kuhluzwe amaza okuphazamiseka. Kubalulekile ukuqwalasela iimfuno ze-frequency domain kunye ne-time domain ngaxeshanye ukuze kuhlangatyezwane neemfuno zokucoca kunye nexesha lokusekwa kwesignali.
(2) Ukuchaneka: Ukuba usetyenziso lwakho lunxulumene nemiqondiso ye-frequency ephezulu okanye lufuna i-bandwidth ephezulu yesihluzo, kufuneka ukhethe ii-capacitors ezichaneke kakhulu. Ngokubanzi, iimfuno zokuchaneka kwee-capacitors azinabuzweli kakhulu.
(3) Ukushukuma kobushushu.
(4) Ukumelana noxinzelelo: Kufuneka ihlangabezane nemigangatho yoyilo lokunciphisa ubushushu, kunye nomda wesicelo sokunciphisa ubushushu we-20%.
4. Ubushushu bokusebenza
(1) Misela uluhlu lobushushu bokusebenza ngokusekelwe kwiimfuno zemveliso zesixhobo sokubona ifoto. Umzekelo: Uluhlu lobushushu bokusebenza kwesixhobo esithile sezonyango se-IVDimveliso yesixhobo sokubona iifotoyi-10 ukuya kwi-30℃. Le mfuneko yobushushu ibaluleke kakhulu kuba iiparameter ezinxulumene nokushukuma kobushushu kwezinto ezifana nee-amplifiers zokusebenza, ii-resistor, kunye nee-ADC ezikhankanyiweyo ngaphambili zonke zinxulumene ngokusondeleyo neemfuno zobushushu bokusebenza kwemveliso. Ukuqwalasela uluhlu lomahluko wobushushu kunye nempembelelo yomahluko wobushushu phantsi kweemeko zokusetyenziswa kokwenyani, kuqinisekiswa ukuba impembelelo epheleleyo yotshintsho kwiparameter nganye ngaphakathi kolu luhlu lobushushu ayidluli kwimfuneko yokugqibela yeinkqubo yombaneimpazamo.
(2) Qinisekisa ukuba kukho izinto ezinobumanzi obugqithisileyo kwaye ingaba iimfuno zobumanzi ziyafezekiswa na: Qinisekisa ukuba kukho utshintsho oluninzi kubumanzi kwindawo yokusebenza kunye nemilinganiselo yezixhobo ezinobumanzi obugqithisileyo ezichaphazela iziphumo.
5. Uzinzo nokuthembeka kwenkqubo kuhambelana noyilo lozinzo lwe-photodetector. Imfuneko yokwenza ubalo lweempazamo zenkqubo efanelekileyo kukuba inkqubo izinzile kwaye akufuneki ichaphazeleke yimeko-bume enxulumene ne-EMC; kungenjalo, zonke izibalo azinantsingiselo. Ngenxa yokunqongophala kwendawo, esi sahluko asizukuchaza ngakumbi. Ezi zinto zimbini zilandelayo kufuneka ziqwalaselwe ikakhulu. Kuyilo lwesekethe, kufuneka kuthathwe amanyathelo okhuseleko angqongqo kunye nokuphepha i-EMI kunye ne-EMS. B. I-casing, ukhuselo lweentambo zokudibanisa, iindlela zokumisa umhlaba, njl.njl. nazo kufuneka zihlalutywe kwaye ziqinisekiswe.
Ixesha lokuthumela: Okthobha-13-2025