Zvinhu zvinokonzera kukanganisa kwehurongwa hwephotodetectors
Kune ma parameter akawanda ane chekuita nekukanganisa kwesystem yema photodetectors, uye zvinhu chaizvo zvinofungwa nezvazvo zvinosiyana zvichienderana nemashandisirwo akasiyana epurojekiti. Saka, JIMU Optoelectronic Research Assistant yakagadzirwa kuti ibatsire vaongorori ve optoelectronic kugadzirisa nekukurumidza kukanganisa kwesystem yema photodetectors uye nekukurumidza kuvaka masisitimu e optoelectronic, nokudaro ichipfupisa kutenderera kwepurojekiti uye kudzivirira kutanga kubva pakutanga kwekuongorora nekugadzira.
3. Kuramba
(1) Kukosha kwekudzivirira: Kusarudzwa kwemhando dzakakodzera dzekudzivirira kunobatanidzwa mukuwedzera simba kwema amplifiers ekushanda, kuyera simba rekudzivirira, RC filtering, nezvimwewo. Kukosha kwekudzivirira hakufanirwe kunge kwakakura zvakanyanya, sezvo kukosha kwekudzivirira kwakakura, chiratidzo chisina simba, kushanda kwekudzivirira kukanganiswa kwakaderera, uye ruzha rweGaussian chena rwakanyanya. Harufanirwewo kunge rwudiki zvakanyanya, sezvo kushandiswa kwesimba kuchawedzera uye kunogona kuburitsa kupisa uye kukanganisa hupenyu hwese.
(2) Simba: Iva nechokwadi chekuti P=I^2*R haipfuure simba rayo rakatarwa, uye kudzivirira resistor kuti isapise zvakanyanya, haifanirwe kudarika hafu yesimba rayo rakatarwa.
(3) Kururama: Hazvina simba guru pakururama kwesystem yekugadzirisa zvakare.
(4) Kufamba-famba kwetembiricha: Kufamba-famba kwetembiricha kwevanodzivisa chinhu chakakosha pakuverenga zvikanganiso zvehurongwa.
4. Muchina wekutakura zvinhu
(1) Kukosha kweCapacitance: Kune maRC filt-related circuits, time constants, nezvimwewo, kukosha kwe capacitance kunofanirwa kuverengerwa nemazvo. Dhizaini yesystem haigone kufuratira nguva inoenderana nekuisa masignal kuti ibvise ma interference frequency. Zvakakosha kufunga nezvezvinodiwa zve frequency domain uye time domain panguva imwe chete kuti zvizadzise zvinodiwa zvekusefa nenguva yekuisira masignal.
(2) Kunyatsojeka: Kana application yako iine chekuita nemasaini ane frequency yakakwira kana kuti ichida bandwidth yepamusoro yekusefa, unofanirwa kusarudza ma capacitor ane kunyatsojeka kwakanyanya. Kazhinji, zvinodiwa pakunyatsojeka kwema capacitor hazvina kunyanya kuoma.
(3) Kufamba kwekupisa.
(4) Kuramba kumanikidzwa: Inofanira kusangana nezvinodiwa pakugadzira kudzvanywa, ine mukana wekushandiswa kwe20%.
4. Kushanda tembiricha
(1) Sarudza tembiricha yekushanda zvichienderana nezvinodiwa nechinhu chinoona nezve photodetector. Semuenzaniso: Tembiricha yekushanda yeimwe IVD medicalchigadzirwa chekuona mifananidzoiri pakati pe10 ne30℃. Chinodiwa ichi chekupisa chakakosha nekuti ma parameter ane chekuita nekudonha kwekushisa kwezvikamu zvakaita se operational amplifiers, resistors, uye ADCs zvambotaurwa zvese zvine chekuita nezvinodiwa pakushanda kwetembiricha yechigadzirwa. Tichifunga nezve musiyano wetembiricha uye pesvedzero yemusiyano wetembiricha pasi pekushandiswa chaiko kwemamiriro ekunze, zvinoonekwa kuti mhedzisiro yakazara yekuchinja kweparameter yega yega iri mukati meiyi tembiricha haipfuure chinodiwa chekupedzisira chesisitimu yemagetsikukanganisa.
(2) Sarudza kana paine zvinhu zvinonzwa hunyoro uye kana zvinodiwa pamamiriro ehunyoro zvichizadzikiswa: Sarudza huwandu hwekuchinja kwehunyoro munzvimbo yekushanda uye parameters yemidziyo inonzwa hunyoro inokanganisa mhedzisiro.
5. Kugadzikana uye kuvimbika kwesystem zvinoenderana nekugadzirwa kwekugadzikana kwephotodetector. Chinodiwa pakuita kuverenga kwakakodzera kwesystem error ndechekuti system igare yakagadzikana uye haifanirwe kukanganiswa nemamiriro ekunze ane chekuita neEMC; zvikasadaro, kuverenga kwese hakuna zvakunoreva. Nekuda kwekushomeka kwenzvimbo, chitsauko chino hachizotsananguri zvakawanda. Zvinhu zviviri zvinotevera zvinofanirwa kutariswa zvakanyanya. Mukugadzira circuit, kufunga nezvekudzivirira kwakasimba uye matanho ekudzivirira anofanirwa kutorwa kune EMI neEMS. B. Casing, shielding ye connecting ways, grounding methods, etc. zvinodawo kuongororwa uye kusimbiswa.
Nguva yekutumira: Gumiguru-13-2025