Qhov txawv ntawm qhov pom kev hmo ntuj tsom iav tau piav qhia
Cov cuab yeej pom kev hmo ntuj tau muab faib ua thawj, thib ob thiab thib peb tiam raws li qib ntawm cov raj intensifier.
Lub tiam thib peb yog cov cuab yeej cuab tam hmo ntuj pom kev zoo tshaj plaws hauv cov neeg pej xeem tam sim no. Nws nto yog coated nrog ib tug heev rhiab heev gallium arsenide photocathode txheej, uas muaj peev xwm hloov lub teeb mus rau hauv hluav taws xob zoo nyob rau hauv lub teeb tsis muaj zog heev. Lub cim thib peb muab cov duab meej, pom kev hmo ntuj. Muaj kev ua haujlwm siab cov duab intensifier raj nrog qhov tsawg kawg nkaus ntawm 51lp / mm, uas yog 3 units saum toj kawg nkaus tus qauv ntawm 45lp / mm. Kab ib millimeter (lp/mm) yog chav ntsuas uas siab dua cov duab intensifiers tsim cov duab sharper.
Cov phaj nkag tau tsim los ntawm tiam thib ob tuaj yeem tsim tau kaum tawm txhiab tus electrons. Qhov no ua rau cov duab pom tseeb hauv cov xwm txheej hmo ntuj, tsis muaj kev cuam tshuam piv rau Generation 1 thiab Generation Zero.
Thawj tiam muaj teeb meem nrog distortion thiab lub neej luv luv ntawm cov hlab ntsha. Nws siv cov ntaub ntawv uas hloov photoelectrons tau zoo dua li Generation Zero. Cov khoom siv no muaj peev xwm ua haujlwm ntawm lub teeb qis dua li Generation Zero, hu ua "starlight". Imported night vision goggles feem ntau siv thawj tiam duab intensifiers, txawm tias lawv tau tshaj tawm tias yog tiam thib ob.
Raws li rau lub zero tiam, nws tso siab rau lub teeb lub zog los txhim kho lub teeb sab nraud. Lub teeb-hloov hluav taws xob yog tsom los ntawm cov khoom siv hluav taws xob, thiab cov khoom siv hluav taws xob no tau nrawm los ntawm cov khoom siv conical (anode), yog li lawv muaj zog ntau dua thaum lawv ntaus lub vijtsam fluorescent, yog li tsim cov duab. Hmoov tsis zoo, kev ua kom cov hluav taws xob ua kom zoo li no ua rau txo cov duab zoo thiab luv luv lifespan rau lub kinescope.
Tag nrho cov khoom muag mus rau thoob ntiaj teb kev lag luam ntawm peb tiam yuav tsum tau txais daim ntawv tso cai export los ntawm US State Department, uas yog ib tug tiv thaiv kev lag luam tswj cov khoom, raws li lub US Federal International Transportation of Arms (ITAR), Tshooj 22. Feem ntau ntawm Ob yam khoom yog tswj los ntawm US Department of Commerce rau export, catalog tooj 6A002.
yam ntxwv ua haujlwm
Muaj peb yam tseem ceeb los txiav txim nws qhov kev ua tau zoo. Lawv yog: Sensitivity, Signal Conversion thiab Clarity. Raws li tus neeg siv khoom, koj yuav tsum paub peb tus yam ntxwv no txhawm rau txiav txim siab qhov kev ua tau zoo ntawm kev pom kev hmo ntuj.
Nws rhiab heev, los yog duab teb, yog lub peev xwm los ntes lub teeb. Nws feem ntau yog ntsuas hauv "uA / lm", (microamperes ib lumen). ATN cov thev naus laus zis thiab kev ua haujlwm siab heev pab kom peb muab cov neeg siv khoom nrog cov khoom zoo heev. Tias yog vim li cas ntau ntawm peb cov khoom tsis tuaj nrog tus qauv IR illuminators. Hauv ntau daim ntawv thov, teeb pom kev zoo tsis tsim nyog. Peb cov neeg sib tw muab lawv cov khoom nyob rau hauv infrared illuminators kom tau txais kev ua tau zoo nyob rau hauv cov teeb pom kev zoo.
Kev hloov pauv teeb liab ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm tsis pom kev hmo ntuj. ATN's channel board thev naus laus zis muab lub peev xwm hloov pauv muaj zog rau kev tawm tswv yim thiab tso tawm cov cim. Ib yam li cov cuab yeej tso suab siab siab muab lub suab zoo rau koj, ATN hmo ntuj pom kev muab koj cov duab zoo yam tsis muaj "suab nrov".
Qhov thib peb loj tshaj plaws los xav txog thaum txiav txim siab yuav lub tsom iav hmo ntuj yog lub peev xwm pom cov ntsiab lus hauv cov duab koj pom. ATN cov cuab yeej pom kev hmo ntuj muaj cov khoom siv kho qhov muag zoo thiab cov thev naus laus zis tshiab. Qee tus ntawm peb cov neeg sib tw siv qhov kev nthuav dav optics rau lawv cov khoom sib xws rau kev daws teeb meem siab. Tab sis raws li, lub zeem muag yog txi. ATN muaj kev xaiv qhov siab loj yog tias koj xav tau. Cov kab ke no tsis tas yuav muaj kev nthuav dav kom ua haujlwm tau zoo. Peb cov thev naus laus zis muab txoj hauv kev tshwj xeeb los tsim qhov sib txawv siab tshaj plaws ntawm lub vijtsam phosphor, ua rau cov khoom lag luam siab tshaj plaws rau cov neeg siv khoom.
