Ukwethulwa kobuchwepheshe bokuhlola ugesi wezithombe
Ubuchwepheshe bokubona ugesi wezithombe bungobunye bobuchwepheshe obuyinhloko bobuchwepheshe bolwazi lwezithombe zikagesi, obuhlanganisa ikakhulukazi ubuchwepheshe bokuguqulwa kwezithombe zikagesi, ukutholwa kolwazi lwe-optical kanye nobuchwepheshe bokulinganisa ulwazi lokubona kanye nobuchwepheshe bokucubungula izithombe zikagesi zolwazi lokulinganisa. Njengendlela ye-photoelectric ukuze kuzuzwe ukulinganisa okuhlukile komzimba, ukukhanya okuphansi, ukukalwa kokukhanya okuphansi, ukukala kwe-infrared, ukuskena ukukhanya, ukukala kokulandela ukukhanya, ukukala kwe-laser, ukukala kwefiber optical, ukukalwa kwesithombe.
Ubuchwepheshe bokutholwa kwe-Photoelectric buhlanganisa ubuchwepheshe be-optical kanye nobuchwepheshe be-elekthronikhi ukukala amanani ahlukahlukene, anezici ezilandelayo:
1. Ukunemba okuphezulu. Ukunemba kokulinganisa kwe-photoelectric kuphakeme kakhulu kuzo zonke izinhlobo zamasu okulinganisa. Isibonelo, ukunemba kokulinganisa ubude nge-laser interferometry kungafinyelela ku-0.05μm/m; Isilinganiso se-engeli nge-grating moire fringe indlela singafinyelelwa. Isixazululo sokulinganisa ibanga phakathi komhlaba nenyanga nge-laser rangeing method singafinyelela ku-1m.
2. Ijubane eliphezulu. Isilinganiso sikagesi wesithombe sithatha ukukhanya njengemaphakathi, futhi ukukhanya kuyisivinini esisakazeka ngokushesha phakathi kwazo zonke izinhlobo zezinto, futhi ngokungangabazeki yikho okushesha kakhulu ukuthola nokudlulisa ulwazi ngezindlela zokubona.
3. Ibanga elide, ububanzi obukhulu. Ukukhanya kuyindlela elula kunazo zonke yokulawula okukude kanye ne-telemetry, njengokuqondiswa kwezikhali, ukulandelela isithombe sikagesi, i-telemetry yethelevishini nokunye.
4. Isilinganiso esingathintana naye. Ukukhanya entweni elinganisiwe kungabhekwa njengamandla okulinganisa, ngakho-ke akukho ukungqubuzana, ukulinganisa okuguquguqukayo kungafinyelelwa, futhi kuyindlela ephumelela kakhulu ezindleleni zokulinganisa ezihlukahlukene.
5. Impilo ende. Ngokombono, amagagasi akhanyayo awakaze agqoke, inqobo nje uma ukukhiqiza kwenziwa kahle, kungasetshenziswa unomphela.
6. Ngamakhono aqinile wokucubungula ulwazi kanye nekhompyutha, ulwazi oluyinkimbinkimbi lungacutshungulwa ngokuhambisana. Indlela ye-photoelectric nayo kulula ukuyilawula nokugcina imininingwane, kulula ukuyibona i-automation, kulula ukuyixhuma ngekhompyutha, futhi kulula ukuyibona kuphela.
Ubuchwepheshe bokuhlola ugesi ngezithombe buwubuchwepheshe obusha obubalulekile kwezesayensi yesimanje, ukwenziwa kwesimanjemanje kuzwelonke kanye nempilo yabantu, ubuchwepheshe obusha obuhlanganisa umshini, ukukhanya, ugesi kanye nekhompyutha, futhi bungobunye bobuchwepheshe bolwazi obungaba khona kakhulu.
Okwesithathu, ukwakheka kanye nezici zohlelo lokubona ugesi wezithombe
Ngenxa yobunkimbinkimbi nokuhlukahluka kwezinto ezihloliwe, ukwakheka kwesistimu yokuthola akufani. Uhlelo olujwayelekile lokuthola i-elekthronikhi lwakhiwe izingxenye ezintathu: inzwa, isimo sesignali kanye nesixhumanisi sokuphumayo.
Inzwa iwukuguqulela isignali kusixhumi esibonakalayo phakathi kwento ehloliwe kanye nesistimu yokuthola. Ikhipha ngokuqondile ukwaziswa okulinganiselwe entweni elinganisiwe, izwa ukushintsha kwayo, futhi iluguqule lube amapharamitha kagesi okulula ukuwakala.
Amasignali atholwe izinzwa ngokuvamile amasignali kagesi. Ayikwazi ukuhlangabezana ngokuqondile nezidingo zomkhiqizo, idinga ukuguqulwa okwengeziwe, ukucutshungulwa nokuhlaziywa, okungukuthi, ngokusebenzisa isifunda se-signal conditioning ukuyiguqula ibe isignali evamile kagesi, okukhiphayo kusixhumanisi sokukhipha.
Ngokwenhloso kanye nesimo sokukhishwa kwesistimu yokuthola, isixhumanisi sokuphumayo siwumshini wokubonisa nokurekhoda, isixhumi esibonakalayo sokuxhumana kwedatha nedivayisi yokulawula.
Isifunda se-signal conditioning yenzwa sinqunywa uhlobo lwenzwa kanye nezidingo zesignali yokuphumayo. Izinzwa ezihlukene zinezimpawu ezihlukene zokukhiphayo. Okukhishwayo kwenzwa yokulawula amandla wukushintsha kwemingcele kagesi, okudingeka iguqulwe ibe uguquko kagesi yisekethe yebhuloho, futhi ukuphuma kwesignali ye-voltage yesekethe yebhuloho kuncane, futhi i-voltage yemodi evamile inkulu, edinga ukuze ikhuliswe nge-amplifier yensimbi. I-voltage kanye namasignali amanje akhishwa yinzwa yokuguqula amandla ngokuvamile aqukethe amasignali amakhulu omsindo. Isekhethi yokuhlunga iyadingeka ukuze kukhishwe amasignali awusizo futhi kuhlungwe amasignali omsindo angenamsebenzi. Ngaphezu kwalokho, i-amplitude yesignali ye-voltage ekhishwa yinzwa yamandla evamile iphansi kakhulu, futhi ingase ikhuliswe i-amplifier yensimbi.
Uma kuqhathaniswa nesithwali sesistimu ye-elekthronikhi, imvamisa yesiphathi sesistimu ye-photoelectric ikhuphuka ngama-oda amaningana wobukhulu. Lolu shintsho ku-oda yemvamisa lwenza uhlelo lwe-photoelectric lube noshintsho lwekhwalithi endleleni yokuqaphela kanye nokugxuma kwekhwalithi emsebenzini. Ikakhulukazi ebonakaliswa umthamo wenkampani yenethiwekhi, ukulungiswa kwe-angular, ukulungiswa kwebanga kanye nesixazululo se-spectral kuthuthukisiwe kakhulu, ngakho-ke isetshenziswa kabanzi emikhakheni yesiteshi, i-radar, ukuxhumana, isiqondiso esinembayo, ukuzulazula, ukulinganisa nokunye. Nakuba izinhlobo ezithile zesistimu ye-photoelectric esetshenziswa kulezi zikhathi zihlukile, zinesici esivamile, okungukuthi, zonke zinesixhumanisi sesidlulisi, isiteshi sokukhanya kanye nesitholi esibonakalayo.
Amasistimu we-Photoelectric ngokuvamile ahlukaniswa ngezigaba ezimbili: asebenzayo kanye ne-passive. Kusistimu ye-photoelectric esebenzayo, isidlulisi se-optical ikakhulukazi sakhiwe umthombo wokukhanya (njenge-laser) kanye ne-modulator. Kusistimu ye-photoelectric ye-passive, i-optical transmitter ikhipha imisebe eshisayo entweni ehlolwayo. Amashaneli abonakalayo nabamukeli be-optical kuyafana kokubili. Okubizwa ngokuthi i-optical channel ikakhulukazi ibhekisela emkhathini, emkhathini, ngaphansi kwamanzi kanye ne-optical fiber. Isamukeli sokubona sisetshenziselwa ukuqoqa isignali yokubona yesigameko nokuyicubungula ukuze kubuyiselwe ulwazi lwenkampani yenethiwekhi yokubona, okuhlanganisa amamojula amathathu ayisisekelo.
Ukuguqulwa kwe-Photoelectric kuvame ukufezwa ngezinhlobonhlobo zezingxenye ze-optical kanye nezinhlelo ze-optical, kusetshenziswa izibuko eziyisicaba, ama-optical slits, amalensi, ama-cone prisms, ama-polarizers, amapuleti amagagasi, amapuleti ekhodi, i-grating, ama-modulators, ama-optical imaging systems, ama-optical interference systems, njll. ukufeza ukuguqulwa okulinganiselwe kumingcele ye-optical (amplitude, imvamisa, isigaba, isimo se-polarization, izinguquko zesiqondiso sokusabalalisa, njll.). Ukuguqulwa kwe-Photoelectric kwenziwa ngamadivayisi ahlukahlukene okuguqula ama-photoelectric, njengamadivayisi okuthola ugesi wezithombe, amadivaysi ekhamera e-photoelectric, amadivaysi ashisayo e-photoelectric nokunye.
Isikhathi sokuthumela: Jul-20-2023