Kapangidwe ka chowunikira zithunzi cha PIN

Kapangidwe kaChowunikira chithunzi cha PIN

Chowunikira zithunzi, chipangizo chomwe chimasintha zizindikiro za kuwala kukhala zizindikiro zamagetsi pogwiritsa ntchito mphamvu ya photoelectric, chili ngati diso la munthu ndipo chimatha kujambula zizindikiro zofooka zooneka ndi zosaoneka. Chifukwa cha mfundo yake yogwirira ntchito ya kuwala kwa kuwala komwe kumayambitsa kusintha kwa zinthu zakuthupi, zida zowunikira zithunzi zili ndi mitundu yosiyanasiyana ya zinthu zomwe zimasankhidwa komanso mitundu yosiyanasiyana, iliyonse ili ndi zochitika zake zapadera zogwiritsira ntchito.
Mitundu ya zida zowunikira zithunzi imagawidwa kutengera mawonekedwe awo, kuphatikiza zida zamagetsi zowunikira, zida zowunikira zithunzi,Ma PIN a zithunzi, phototransistors, ndi zida zozindikira ma avalanche diode (Chowunikira zithunzi cha APDChofunika kwambiri ndi PIN photodetector, yomwe imawonjezera m'lifupi mwa dera lotha ntchito mwa kuyika gawo lochepa la semiconductor la mtundu wa I mu PN junction, motero imachepetsa mphamvu ya kayendedwe ka kufalikira ndikuwongolera liwiro la kuyankha.
Ma PIN photodiode agwiritsidwa ntchito kwambiri m'magawo osiyanasiyana monga kulumikizana kwa kuwala, kuyeza kwa kuwala, kujambula kwachipatala, ndi laser chifukwa cha mphamvu zawo zapamwamba za quantum, phokoso lochepa, yankho la wide spectral, komanso kuyankha mwachangu. Mwachitsanzo, ma LBTEK's silicon-based amplification detectors ndi ma balanced photodetectors ali m'gululi. Komabe, ndikofunikira kudziwa kuti ma PIN photodetectors ndi ochepa mphamvu zawo zozindikira zizindikiro zofooka chifukwa cha kusowa kwa gain yowonjezera. Avalanche photodiode (APD photodetector) imakulitsa photocurrent mwa kuyambitsa dera la gain yamagetsi mkati mwa PIN photodiode ndikugwiritsa ntchito mphamvu yake yamkati ya avalanche multiplication. Izi zimapatsa ma APD photodetectors mwayi kuposa ma PIN photodetectors pozindikira zizindikiro zofooka, ndi gain yamkati mpaka nthawi 10 mpaka 100. Mfundo yogwirira ntchito ya photodetector imasiyana malinga ndi mtundu wake, koma mfundo yake yoyambira ya photoelectric effect imagwira ntchito pamitundu yosiyanasiyana ya ma photodetectors.
Monga gawo lalikulu la machitidwe amakono a optoelectronic, magwiridwe antchito a zida zowunikira zithunzi amatsimikizira mwachindunji kulondola, kudalirika, ndi kukhazikika kwa dongosolo lonse. Zimagwiritsidwa ntchito kwambiri m'magawo monga kulumikizana kwa fiber optic, kuyang'anira zachilengedwe, kujambula zithunzi zachipatala, kufufuza zankhondo, automation yamafakitale, ndi kafukufuku wasayansi, zomwe zimayambitsa kusintha zizindikiro za kuwala kukhala zizindikiro zamagetsi zoyezeka. Chifukwa chake, kuzindikira kwathunthu komanso kolondola kwa zida zowunikira zithunzi ndikofunikira.