{"id":63766,"date":"2022-04-19T08:43:52","date_gmt":"2022-04-19T13:43:52","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/pros-and-cons-of-infrared-detectors\/"},"modified":"2025-01-27T06:14:58","modified_gmt":"2025-01-27T11:14:58","slug":"pros-and-cons-of-infrared-detectors","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/pros-and-cons-of-infrared-detectors\/","title":{"rendered":"Infra\u010derven\u00e9 detektory: v\u00fdhody a nev\u00fdhody v praxi"},"content":{"rendered":"

Infra\u010derven\u00e9 detektory se v dne\u0161n\u00ed dob\u011b staly nezbytnou sou\u010d\u00e1st\u00ed \u0161irok\u00e9ho spektra aplikac\u00ed, od vojensk\u00fdch syst\u00e9m\u016f a pr\u016fmyslov\u00e9 automatizace a\u017e po medic\u00ednu a bezpe\u010dnostn\u00ed syst\u00e9my. Nicm\u00e9n\u011b, stejn\u011b jako ka\u017ed\u00e1 technologie, i infra\u010derven\u00e9 detektory maj\u00ed sv\u00e9 v\u00fdhody i nev\u00fdhody, kter\u00e9 je d\u016fle\u017eit\u00e9 zv\u00e1\u017eit p\u0159ed jejich nasazen\u00edm. Tento \u010dl\u00e1nek se podrobn\u011bji zam\u011b\u0159\u00ed na tyto klady a z\u00e1pory.<\/p>\n

V\u00fdhody infra\u010derven\u00fdch detektor\u016f<\/p>\n

Infra\u010derven\u00e9 detektory nab\u00edzej\u00ed \u0159adu v\u00fdhod, kter\u00e9 je \u010din\u00ed atraktivn\u00ed pro r\u016fzn\u00e9 oblasti pou\u017eit\u00ed. Jednou z kl\u00ed\u010dov\u00fdch v\u00fdhod je jejich schopnost detekovat objekty v podm\u00ednk\u00e1ch n\u00edzk\u00e9 viditelnosti, nap\u0159\u00edklad v noci nebo v hust\u00e9 mlze. Na rozd\u00edl od viditeln\u00e9ho sv\u011btla, infra\u010derven\u00e9 z\u00e1\u0159en\u00ed nen\u00ed snadno absorbov\u00e1no ani rozptylov\u00e1no v atmosf\u00e9\u0159e, co\u017e umo\u017e\u0148uje detekci objekt\u016f na v\u011bt\u0161\u00ed vzd\u00e1lenost.<\/p>\n

Dal\u0161\u00ed v\u00fdznamnou v\u00fdhodou je pasivn\u00ed charakter detekce. Infra\u010derven\u00e9 detektory nepot\u0159ebuj\u00ed k detekci objekt\u016f emitovat vlastn\u00ed z\u00e1\u0159en\u00ed, co\u017e je \u010din\u00ed nen\u00e1padn\u00fdmi a obt\u00ed\u017en\u011b detekovateln\u00fdmi. Tato vlastnost je velmi cenn\u00e1 v vojensk\u00fdch a bezpe\u010dnostn\u00edch aplikac\u00edch.<\/p>\n

Krom\u011b toho, infra\u010derven\u00e9 detektory nab\u00edzej\u00ed vysokou citlivost a rychlou odezvu, co\u017e umo\u017e\u0148uje p\u0159esn\u00e9 a rychl\u00e9 m\u011b\u0159en\u00ed teploty a detekci i mal\u00fdch zm\u011bn v teplotn\u00edm profilu. To je d\u016fle\u017eit\u00e9 v aplikac\u00edch, kde je nutn\u00e9 detekovat mal\u00e9 objekty nebo drobn\u00e9 zm\u011bny v prost\u0159ed\u00ed.<\/p>\n

Nev\u00fdhody infra\u010derven\u00fdch detektor\u016f<\/p>\n

Navzdory sv\u00fdm v\u00fdhod\u00e1m maj\u00ed infra\u010derven\u00e9 detektory i sv\u00e1 omezen\u00ed. Jednou z hlavn\u00edch nev\u00fdhod je jejich citlivost na okoln\u00ed teplotu. Zm\u011bny v okoln\u00ed teplot\u011b mohou ovlivnit citlivost detektoru a v\u00e9st k chyb\u00e1m v m\u011b\u0159en\u00ed. Proto je nutn\u00e9 pe\u010dliv\u011b kalibrovat detektor a kompenzovat vliv okoln\u00ed teploty.<\/p>\n

Dal\u0161\u00ed nev\u00fdhodou je cena. Infra\u010derven\u00e9 detektory, zejm\u00e9na ty s vysokou citlivost\u00ed a rozli\u0161en\u00edm, mohou b\u00fdt pom\u011brn\u011b drah\u00e9. Cena se li\u0161\u00ed v z\u00e1vislosti na typu detektoru, jeho parametrech a aplikaci.<\/p>\n\n\n\n\n\n\n\n
Typ detektoru<\/th>\nCena (orienta\u010dn\u00ed)<\/th>\nCitlivost<\/th>\nRozli\u0161en\u00ed<\/th>\n<\/tr>\n<\/thead>\n
Mikrobolometr<\/td>\n1000 – 10000 K\u010d<\/td>\nSt\u0159edn\u00ed<\/td>\nSt\u0159edn\u00ed<\/td>\n<\/tr>\n
Fotodioda InSb<\/td>\n10000 – 100000 K\u010d<\/td>\nVysok\u00e1<\/td>\nVysok\u00e1<\/td>\n<\/tr>\n
Fotodioda HgCdTe<\/td>\n50000 – 500000 K\u010d<\/td>\nVelmi vysok\u00e1<\/td>\nVelmi vysok\u00e1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Krom\u011b ceny je t\u0159eba zv\u00e1\u017eit i omezenou \u017eivotnost n\u011bkter\u00fdch typ\u016f detektor\u016f, a n\u00e1ro\u010dnost na chlazen\u00ed n\u011bkter\u00fdch typ\u016f infra\u010derven\u00fdch detektor\u016f, zejm\u00e9na t\u011bch s vysokou citlivost\u00ed. Chlazen\u00ed m\u016f\u017ee b\u00fdt energeticky n\u00e1ro\u010dn\u00e9 a zkomplikovat jejich pou\u017eit\u00ed v n\u011bkter\u00fdch aplikac\u00edch.<\/p>\n

Porovn\u00e1n\u00ed s jin\u00fdmi technologiemi<\/p>\n

Infra\u010derven\u00e9 detektory se \u010dasto porovn\u00e1vaj\u00ed s jin\u00fdmi technologiemi detekce, jako jsou nap\u0159\u00edklad technologie zalo\u017een\u00e9 na viditeln\u00e9m sv\u011btle nebo ultrazvuku. Ka\u017ed\u00e1 technologie m\u00e1 sv\u00e9 v\u00fdhody a nev\u00fdhody a volba vhodn\u00e9 technologie z\u00e1vis\u00ed na specifick\u00fdch po\u017eadavc\u00edch aplikace. Infra\u010derven\u00e9 detektory se nejl\u00e9pe hod\u00ed do situac\u00ed, kde je pot\u0159eba detekce v podm\u00ednk\u00e1ch n\u00edzk\u00e9 viditelnosti a tam, kde je pasivn\u00ed detekce v\u00fdhodn\u00e1.<\/p>\n

Z\u00e1v\u011br<\/p>\n

Infra\u010derven\u00e9 detektory p\u0159edstavuj\u00ed v\u00fdkonnou technologii s \u0161irok\u00fdm spektrem aplikac\u00ed. Nicm\u00e9n\u011b, je d\u016fle\u017eit\u00e9 si uv\u011bdomit jejich v\u00fdhody i nev\u00fdhody, a pe\u010dliv\u011b zv\u00e1\u017eit jejich vhodnost pro konkr\u00e9tn\u00ed pou\u017eit\u00ed. Cena, citlivost na okoln\u00ed teplotu a n\u00e1roky na chlazen\u00ed jsou faktory, kter\u00e9 je nutn\u00e9 vz\u00edt v \u00favahu p\u0159i v\u00fdb\u011bru a implementaci infra\u010derven\u00fdch detektor\u016f. Po d\u016fkladn\u00e9m zv\u00e1\u017een\u00ed v\u0161ech faktor\u016f je mo\u017en\u00e9 dos\u00e1hnout optim\u00e1ln\u00edho vyu\u017eit\u00ed t\u00e9to technologie a maximalizovat jej\u00ed p\u0159\u00ednos.<\/p>\n","protected":false},"excerpt":{"rendered":"

Infra\u010derven\u00e9 detektory se v dne\u0161n\u00ed dob\u011b staly nezbytnou sou\u010d\u00e1st\u00ed \u0161irok\u00e9ho spektra aplikac\u00ed, od vojensk\u00fdch syst\u00e9m\u016f a pr\u016fmyslov\u00e9 automatizace a\u017e po medic\u00ednu a bezpe\u010dnostn\u00ed syst\u00e9my. Nicm\u00e9n\u011b, stejn\u011b jako ka\u017ed\u00e1 technologie, i infra\u010derven\u00e9 detektory maj\u00ed sv\u00e9 v\u00fdhody i nev\u00fdhody, kter\u00e9 je d\u016fle\u017eit\u00e9 zv\u00e1\u017eit p\u0159ed jejich nasazen\u00edm. Tento \u010dl\u00e1nek se podrobn\u011bji zam\u011b\u0159\u00ed na tyto klady a z\u00e1pory. V\u00fdhody<\/p>\n","protected":false},"author":1,"featured_media":5766,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-63766","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/63766","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/comments?post=63766"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/63766\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/5766"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=63766"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=63766"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=63766"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}