Vim li cas hmo ntuj pom gadgets ntshai teeb ci?
Muaj ntau hom kev pom kev hmo ntuj, tab sis lawv yog cov hauv paus tsim los ntawm cov tshuab kho qhov muag, cov duab hloov pauv lossis cov raj tsis muaj teeb pom kev zoo, cov khoom siv hluav taws xob, thiab cov khoom siv hluav taws xob. Ntawm chav kawm, lub active infrared hmo ntuj tsis pom kev ntaus ntawv kuj tau nruab nrog ib tug infrared Searchlight, uas cov duab converter raj los yog tsawg lub teeb theem raj yog lub "lub plawv" ntawm lub hmo ntuj pom kev. Imager tubes tuaj yeem hloov cov duab infrared tsis pom rau hauv cov duab pom, thaum lub teeb qis qis tuaj yeem txhim kho lub teeb tsis muaj zog los ntawm kaum tawm txhiab lossis txawm ntau pua txhiab zaus, ua rau pom ntawm tib neeg lub qhov muag.
Cov cuab yeej pom kev hmo ntuj ntshai ntawm lub teeb muaj zog vim tias cov duab hloov pauv thiab cov raj qis qis ntshai lub teeb muaj zog. Noj cov duab converter ua piv txwv, thaum lub teeb infrared illuminates lub photocathode ntawm cov duab converter, lub photocathode emits electrons. Nyob rau hauv qhov kev txiav txim ntawm qhov chaw muaj hluav taws xob siab (16-21 kV) thiab lub lens electron, cov hluav taws xob nrawm nrawm ntawm lub vijtsam fluorescent, ua rau nws pom cov duab pom. Cov duab converter tau txais ntau lub teeb pom kev zoo, emissions ntau dua electrons, thiab lub teeb liab tawm ntawm lub fluorescent screen muaj zog, ua rau cov duab ci dua. Lawv yeej proportional. Tab sis yog tias lub teeb sab nraud muaj zog heev, tus naj npawb ntawm cov hluav taws xob tawm los ntawm photocathode yuav tsis nce mus rau qee qhov, uas yog, saturation yuav tshwm sim, thiab lub hom phiaj yuav tsis pom meej. Yog hais tias lub teeb muaj zog heev sai sai tua, nws kuj yuav ua rau lub photocathode ntawm lub raj kub hnyiab tawm thiab tsis tuaj yeem tawm hluav taws xob, tau kawg, tsis muaj dab tsi tuaj yeem pom.
Txawm hais tias cov cuab yeej pom kev hmo ntuj tau siv qee yam kev ntsuas los tiv thaiv lub teeb muaj zog, lawv cov txiaj ntsig tau txwv, yog li lawv yuav tsum tau ua nruj me ntsis raws li cov cai thaum siv. Thaum ntsib teeb pom kev zoo lossis kho lub hom phiaj thaum nruab hnub, nws yuav tsum tau muab tso rau ntawm lub hom phiaj lens npog lossis tua lub hwj chim hloov. Kev siv cov cuab yeej pom kev hmo ntuj kom yog tuaj yeem txuas ntxiv lawv lub neej kev pabcuam thiab zam kev puas tsuaj tsis tsim nyog, yog li ua haujlwm siab rau kev ua haujlwm ntawm kev pom kev hmo ntuj.
Kev yuav khoom siv infrared hmo ntuj pom kev
1. Image intensifier: Dab tsi yog tiam. Nco ntsoov paub meej nrog tus tub luam thaum yuav khoom. Vim tias cov ntim thiab cov lus qhia ntawm cov cuab yeej pom kev hmo ntuj feem ntau tsis qhia tias tiam twg ntawm cov duab intensifiers lawv yog. Tau kawg, yog tias koj xav yuav lub cim thib ob lossis tiam thib peb thaum hmo ntuj pom kev, nws yog qhov zoo dua los yuav cov cuab yeej pom kev hmo ntuj nrog qhov qhia meej ntawm lub cim ntawm cov duab intensifier siv los tiv thaiv koj txoj cai. Tam sim no, kev ua lag luam, xws li RHO cov cuab yeej pom kev hmo ntuj hauv Russia, qhia txog cov khoom ntim thiab tshuab uas tsim cov duab intensifier raj siv.
2. Lens: Xyuas lub lens aperture thiab magnification. Tsis xav txog ntim, tau kawg, qhov loj dua qhov zoo. Nyob rau hauv tib rooj plaub ntawm cov duab intensifier, lub hauv paus ntsiab lus yog tias qhov loj dua qhov aperture, qhov deb ntawm kev soj ntsuam, thiab cov duab meej dua.
3. Cov cuab yeej txhim kho duab: Feem ntau, cov cuab yeej pom kev hmo ntuj uas nruab nrog cov cuab yeej no yuav muaj cov duab zoo dua thiab pom tseeb raws li tib lub sijhawm.
Infrared transmitter: Qhov zoo ntawm qhov kev ua tau zoo no cuam tshuam ncaj qha rau cov duab zoo.
5. Kev daws teeb meem: Qhov kev daws teeb meem ntawm lub lens yog qhov tseem ceeb heev, vim tias qhov kev daws teeb meem siab dua, qhov pom cov duab pom tseeb dua.
