Dab tsi yog cov khoom nta thiab kev siv ntawm infrared hmo ntuj pom kev?
Qhov pom-hom infrared hmo ntuj pom kev ntaus ntawv yog ib qho khoom siv hluav taws xob uas siv tshuab photoelectric hloov dua siab tshiab. Hais lus nruj me ntsis, qhov pom-hom infrared hmo ntuj pom kev ntaus ntawv tsis yog lub tsom iav, nws yog ib qho khoom siv hluav taws xob uas siv roj teeb. Muaj ob hom: active thiab passive. Lub active ib tug emits ib tug beam ntawm infrared rays, uas ci rau ntawm qhov khoom thiab ces reflects rov qab, uas yog sib npaug rau lub teeb; tus passive ib tug amplifies lub infrared rays emitted los ntawm cov khoom nws tus kheej thiab converts nws mus rau hauv pom lub teeb.
Nws yog ib qho compact thiab zoo nkauj handheld hmo ntuj pom kev ntaus ntawv rau kev soj ntsuam monocular. Nws cov kab ke kho qhov muag thiab cov duab ci ntsa iab ua tau zoo tshaj plaws ntxiv rau lub teeb qis qis yuav ua rau koj pom qhov pom tseeb thiab ntse. Qhov pom-hom infrared hmo ntuj pom kev siv siv cov cuab yeej tsim khoom siv siab heev, yog qhov loj me, thiab hnyav tsuas yog 405g, ua rau nws yooj yim siv rau lub sijhawm ntev.
Standard accessories muaj xws li: fais fab adapter, USB cable, video cable, lens cover, dab teg pluaj, hauv ob sab phlu, ceev pib qhia foldout, lub xub pwg pluaj
Yeem 40mm lo ntsiab muag (tej ntawm saib 9.3 degree × 7.0 degree)
Qhov pom-hom infrared hmo ntuj pom kev ntaus ntawv muaj lub teeb tsa ntev infrared laser illuminator los xyuas kom meej tias koj tuaj yeem soj ntsuam kom meej txawm tias nyob hauv ib puag ncig tsaus ntuj. Lub qhov muag pom-hom infrared hmo ntuj pom kev siv lub cim tshiab ntawm cov duab sharpening thev naus laus zis los ua kom pom qhov pom tseeb, kev soj ntsuam ntev dua, thiab cov ntsiab lus kev soj ntsuam zoo dua.
Dab tsi yog qhov tshwj xeeb tshaj yog tias qhov pom-hom infrared hmo ntuj pom kev ntaus ntawv muaj kev nyab xeeb los tiv thaiv glare ua haujlwm kom ntseeg tau tias cov cuab yeej tsis raug cuam tshuam thiab tsis tuaj yeem raug puas tsuaj. Qhov no yog qhov sib txawv heev ntawm cov cuab yeej pom kev hmo ntuj uas feem ntau yooj yim puas thaum raug lub teeb muaj zog, cia koj siv nws nrog kev thaj yeeb nyab xeeb thiab kev nplij siab.
Cov cuab yeej muaj ntau yam kev siv ntau heev thiab tsim nyog rau kev saib xyuas hmo ntuj thiab kev soj ntsuam ntawm cov neeg saib xyuas kev ruaj ntseg. Txawm hais tias koj tab tom mus ncig, mus pw hav zoov, saib cov tsiaj qus, lossis tiv thaiv koj cov khoom los ntawm kev raug nyiag, qhov pom-hom infrared hmo ntuj pom kev zoo tuaj yeem muab kev pab thiab kev koom tes rau koj. Nws yog ib qho khoom siv zoo tshaj plaws rau kev siv tub rog thiab pej xeem, uas tsis tsuas yog txhim kho koj txoj haujlwm ua haujlwm tab sis kuj ntxiv kev lom zem rau koj lub neej.
Muaj ntau hom, tab sis lawv yeej muaj cov tshuab kho qhov muag, cov duab sib txawv lossis cov raj micro-lub teeb, cov khoom siv hluav taws xob thiab cov tshuab hluav taws xob. Tau kawg, cov khoom siv hluav taws xob tsis pom kev hmo ntuj yuav tsum tau nruab nrog lub teeb pom kev infrared, nyob rau hauv uas cov duab sib txawv los yog lub teeb qis yog lub "lub siab" ntawm cov khoom siv pom kev hmo ntuj. Cov duab sib txawv ntawm lub raj tuaj yeem hloov cov duab tsis pom infrared rau hauv cov duab pom, thaum lub teeb qis qis tuaj yeem txhim kho lub teeb tsis muaj zog kaum tawm txhiab lossis ntau pua txhiab zaus, ua rau nws pom tau los ntawm tib neeg lub qhov muag.
Kev soj ntsuam-hom infrared hmo ntuj pom kev cov cuab yeej ntshai ntawm lub teeb muaj zog vim tias cov duab sib txawv thiab cov raj tsis tshua muaj kev ntshai ntawm lub teeb muaj zog. Noj cov duab sib txawv raws li piv txwv, thaum lub teeb infrared ci rau ntawm photocathode ntawm cov duab sib txawv, lub photocathode emits electrons. Nyob rau hauv qhov kev txiav txim ntawm high-voltage teb (16 mus rau 21 kV) thiab lub electron lens, cov electrons ceev mus rau lub fluorescent screen, ua rau lub fluorescent screen kom pom lub hom phiaj duab. Qhov ntau lub teeb qhia lub raj sib txawv tau txais, qhov ntau electrons raug tso tawm. Cov teeb liab teeb liab tawm los ntawm lub vijtsam fluorescent muaj zog dua, thiab cov duab pom tau ci dua.
Lawv yeej proportional. Txawm li cas los xij, yog tias lub teeb sab nraud muaj zog heev, tus naj npawb ntawm cov hluav taws xob tawm los ntawm photocathode yuav tsum tsis txhob nce mus rau qee qhov, uas yog, nws yuav saturated, thiab lub hom phiaj yuav tsis pom meej. Yog hais tias lub teeb muaj zog heev dheev tsoo, nws yuav hlawv tawm lub photocathode ntawm lub raj thiab tiv thaiv nws ntawm emitting electrons. Tau kawg, tsis muaj dab tsi tuaj yeem pom.
Txawm hais tias qhov pom-hom infrared hmo ntuj pom kev siv qee yam kev ntsuas los tiv thaiv lub teeb muaj zog, nws cov nyhuv yog txwv, yog li nws yuav tsum tau ua nruj me ntsis raws li cov cai thaum siv nws. Thaum ntsib lub teeb muaj zog lossis ntsuas lub hom phiaj thaum nruab hnub, muab tso rau ntawm lub hom phiaj lens npog lossis tua lub hwj chim hloov. Kev siv cov khoom siv pom pom-hom infrared hmo ntuj pom kev tuaj yeem txuas ntxiv lub neej kev pab cuam ntawm qhov pom-hom infrared hmo ntuj pom kev ntaus ntawv thiab zam kev puas tsuaj uas tsis tsim nyog, yog li muab kev ua si tag nrho rau lub luag haujlwm ntawm qhov pom-hom infrared hmo ntuj pom kev.
