Ib lub teeb nyem LED lub teeb nyem yog qhov yooj yim tig rau hauv ulaviolet. Xws li ib yam yog muaj txiaj ntsig hauv kev ua liaj ua teb thiab yuav pab pom qhov tsis pom.
Txawm hais tias xws li lub tshuab ua haujlwm zoo tshaj plaws, zoo li tib neeg lub qhov muag, muaj peev xwm pom tsuas yog ib thaj chaw me me ntawm ntau hom hluav taws xob hauv hluav taws xob. Tab sis txawm li cas los xij, tus neeg tsis tuaj yeem qhib thiab tshawb nrhiav yuav luag txhua hom hluav taws xob, tab sis kuj siv. Piv txwv li, ultraviolet hluav taws xob.
Fig.1
Ultraviolet hluav taws xob (feem ntau hu ua nws tsuas yog ultraviolet) yog hluav taws xob hluav taws xob uas nyob ntawm thaj chaw pom ntawm lub teeb thiab xoo hluav taws xob hluav taws xob. Nws tau qhib ntau tshaj ob puas xyoo dhau los. Xyoo 1801, tus kws kho mob German Johann Wilhelm Ritter pib nrhiav rau hluav taws xob sab nraum cov duab visrow sab nraud ntawm qhov pom kev. Tsis ntev, tom qab cov kev sim nrog cov photodegradation ntawm cov nyiaj chloride, ultraviolet hluav taws xob tau kuaj pom.
Qhov hluav taws xob no muaj ntau cov khoom nthuav dav. Tej zaum lub npe nrov tshaj plaws yog lub peev xwm ua rau photolumbumbumescence nyob rau hauv qee yam tshuaj. Nyob rau hauv cov cawv ntawm ultraviolet rays, cov tshuaj no pib ci ntau yam xim ntawm pom spectrum. Ib qho ntawm thawj, qhov tshwm sim no pom muaj cov tub ntxhais kawm Asmeskas cov kws tshaj lij Robert Wood of the Secitish Navy, uas muaj pes tsawg tus neeg muaj kua nplaum hauv qab cuam tshuam ntawm UV cov duab hluav taws xob tuaj yeem siv los ntawm cov neeg soj xyuas thiab geasers nyob rau hauv raws li invisible ink.
Tam sim no, Ultraviolet photolumuminescence yog dav siv los tiv thaiv cov ntaub ntawv tseem ceeb thiab cov nyiaj hauv qab, pom hauv kev ua txhaum, thiab ntau yam sib luag. Ultraviolet lub teeb canterns tuaj yeem siv rau hauv lub neej txhua hnub. Nrog lawv cov kev pab, nws yooj yim los tshawb xyuas cov nyiaj banknoticious los kuaj cov roj, cov tshuaj tiv thaiv kab mob, thiab lwm yam yooj yim pom hauv ultraviolet rays). Kuv siv lub teeb tsa ulaviolet thaum tu cov chav ua noj dav hauv chav ua noj
Hmoov tsis zoo, tsis nyob hauv txhua lub khw koj tuaj yeem pom Ultraviolet hluav taws xob teeb moosl. Thiab cov uas yog - los yog muaj lub zog me me me me, lossis yog kim heev. Tab sis haib ultraviolet teeb yog heev yooj yim heev kom ua los ntawm ib qho tsis muaj hluav taws xob LED hluav taws xob coj nyob rau hauv nws ntawm UV LEDs.
Yuav ua li cas ua ultraviolet teeb nyem
XIM! Ultraviolet yog qhov txaus ntshai rau lub zeem muag - hauv tsis muaj rooj plaub ncaj qha ntawm ulaviolet teeb nyem hauv lub qhov muag.
1. Kev rho tawm teeb
Dab tsi xav tau rau qhov ntawd? Ua ntej tshaj plaws, txoj kev teeb tsa nws tus kheej. Muaj ob hom teeb txawb me me: nrog kev sib txawv ntawm cov muaj zog qis, lossis nrog ib tus neeg muaj hwj chim loj. (Daim duab 01)
Ob lub teeb moos soos tau yuav ntawm lub khw ze tshaj plaws ntawm tus nqi txog li 300 rubles. Koj tuaj yeem tso ob hom ntawm lub teeb moos soos. Tab sis nws yooj yim dua thiab yooj yim dua ua nws nrog lub teeb nyem, uas ib tus neeg muaj hwj chim loj. Xaiv lub teeb nyem, disassemble nws. Raws li txoj cai, tag nrho cov hluav taws xob teeb tsa kwv yees li muaj kwv yees li, thiab muaj cov vaj tse nyob hauv uas tus coj LED module, ib lub iav refletse, thiab lub zog nkag mus. Hauv peb rooj plaub, qhov no yog cov kab hlau txheem rau peb EAA cov ntsiab lus ntawm 1.5 volts. Tus hloov pauv tuaj yeem yog ob qho tib si hauv lub teeb lub tsev nyob thiab hauv cover xaus. (Daim duab 02)
Daim plhaub2
Tshem cov LED module los ntawm rooj plaub ntawm lub teeb. Nws yog xav tau tsis yog rau kev nrawm ncaj qha LED, tab sis kuj yog rau kev tshem tawm los ntawm cov kub dhau dhau thaum ua haujlwm (thiab muaj zog LEDs yog rhuab ntau heev). Peb disassble lub module. (Daim duab. 03 -06)
Daim duab 3.
Fig.4.
Fig.5
Fig.6.
Hmoov tsis zoo, ntau lub tuam txhab uas siv cov teeb meem hluav taws xob ua rau hluav taws xob tau txais kev cawmdim ntawm cov ntsiab lus me me, ntawm cov khoom thiab ua ke zoo. Lub teeb nyem no tsis muaj kev zam. Lub LED yog tsis tsau, txawm hais tias thread qhov rau cov screws muaj. Ua rau luag nyav "rho" hlau ntawm LED thiab nws sib cuag nrog lub vaj tsev. Cov chaw tsim khoom "Tsis nco qab" thiab txog txoj kev thermal ntawm LED thiab tus qauv, thiab yog li ntawd tsis tuaj yeem cia siab ib txwm dab dej. Tab sis txhua qhov no yooj yim los kho! Qhov loj tshaj plaws nyob rau hauv lub teeb nyem LED muaj cov qauv loj thiab cov duab ntawm "lub hnub qub".
2. Kev nrhiav tau cov khoom siv uas tsim nyog
Cov kauj ruam tom ntej peb yuav ib tug haib ultraviolet coj. Yuav kom txuag nyiaj, ib tug UV LED ntawm lub unnamed Chaw tsim tshuaj paus twb nrhiav, nyob rau hauv loj thiab daim ntawv coinciding nrog lub teeb ntsia.
Muaj me ntsis subtlety. Thaum lub sijhawm ua haujlwm, cov leds yog rhiab heev kom tau tshaj qhov tso cai tam sim no. Yog tias tus mob no tsis ua raws li LED lub neej kav, cov LED yuav txo, lossis nws yuav tsis muaj feem xyuam rau txhua yam. Qhov yooj yim rau kev txwv lub zog ntawm qhov tam sim no yog muab tso tawm ib qho kev sib tw nrog lub rooj sib xws coj (ntawm dab tsi cov chaw tsim khoom lag luam kuj tseem cawm tau).
Qhov kev suav ntawm cov nqi ntawm cov hluav taws xob tsis kam tuaj yeem ua los ntawm cov mis hauv qab no (raws li cov paub zoo Ohm txoj cai):
R = (vbat- VCV) / i
R = r + rbd + rdb
Nyob rau tib lub sijhawm, VBat yog lub zog hluav taws xob voltage. Hauv peb qhov teeb meem, nws yog 4.5 volts (peb lub ntsiab ntawm AAA 1.5 volts). VSV thiab kuv - voltage thiab tam sim no tsim nyog rau kev ua haujlwm ib txwm ntawm cov LED. Hauv peb kis - 3.6 volts thiab 0.7 amps. R yog tus nqi tiv thaiv uas yuav tsum tau txwv tam sim no. Nws muaj kev tsis kam mus rau qhov kev tiv thaiv ntxiv ntawm RDB, Glockslight Housings (cabligh phab ntsa, hloov, xov ntawv sib txuas ntawm lub zog R.
Hloov tag nrho cov txiaj ntsig, peb tau txais ntawd R yog kwv yees li 1.3 ohms. Qhov no yog tus nqi tsawg heev, ua ke nrog sab hauv kev tiv thaiv ntawm alkaline cov ntsiab lus ntawm AAA HWJCHIM (txog 0.15 Ohms rau ib lub tsev nyob. Tom qab kev tshuaj xyuas qhov tseeb, ib tus neeg tiv thaiv tau raug xaiv los ntawm 0.22 Ohm nrog 1 Watt Fais Fab Tseg. Lub LED thiab lub resistor tau yuav nyob rau ntawm lub khw muag hluav taws xob ze tshaj plaws ntawm radiostters, tsuas yog 150 rombles siv rau nws. Thaum lub sij hawm suav ntawm kev tiv thaiv ntxiv, cov nyeem ntawv tsis muaj kev siv lub zog tam sim no uas siv lub zog tam sim no siv cov hluav taws xob tam sim no thiab kev tawm tsam ntawm lub zog hluav taws xob. Yog li, raws li cov roj teeb tau tso tawm, lub zog tam sim no (uas txhais tau tias qhov ci ntsa iab ntawm lub teeb nyem) yuav poob. Thiab yog tias koj muab roj teeb rau hauv lub teeb nyem es tsis txhob nce roj teeb - ces lub zog ntawm qhov tam sim no yuav nce, vim tias muaj roj ntau dua. Tab sis, simplicity thiab tus hais lus tus nqi ntawm lub resistor nrog ntau dua txhua tus them. (Daim duab 07)
Fig.7.
3. Kev kho kom zoo ntawm lub teeb nyem thiab kev sim ua haujlwm
Cov ntsiab lus yuav yuav, tom ntej? Ntxiv mus, peb ploj lub qub coj los ntawm "" hlau "hlau thiab disassemble lub LED module. Rau "xaim" hlau peb zawm ib qho xaus ntawm lub resistor. Txhawm rau lwm qhov tawm ntawm lub resistor, peb solder me me ntawm cais cov hlau cais. Mus rau hauv lub vev xaib "-" ntawm lub LED muag tawm ib daig ntawm cov hlau tsis muaj teeb meem khoov hauv cov duab ntawm lub nplhaib. (Daim duab 08)
Fig.8.
Tom qab sib dhos, lub resistor yuav nyob sab hauv lub LED module. Thiab hais tias cov resistor yuam tsis tau kov lub module thiab tsis thaiv hluav taws xob hluav taws xob, ib qho me me ntawm cov raj shrink yog hnav rau ntawm lub cev resistor. Koj tuaj yeem tsuas yog cua tsuas yog ob lossis peb hloov kab xev. (Daim duab 09)
Fig.9.
Rov qab sau lub LED module, thaum lub "ntxiv" hlau yuav tsum dhau los ntawm cov kev sib raug zoo hauv tus qauv. (Daim duab 10)
FIGHTİNE.
Rau lub tshuab ua kom muaj kev sib tiv thaiv tshav kub, peb ntub lub tsheb sib tiv tauj ntawm lub UV LED, kho nws nrog lub nplhaib ntawm "minus" hlau thiab kaw cov hlau no rau cov qauv Lub cev), peb ham lub "ntxiv" hlau rau lub xaib "+" "" (Daim duab. 11,12)
Fig.11
Fig.12.
Muaj ob qho me me subtleties:
- Ib qho ntawm cov ntsia hlau tib lub sijhawm yog ob qho tib si "rho". Yog li ntawd, thaum sib sau, koj yuav tsum ua tib zoo saib xyuas tias lub thermal vaj huam sib luag tsis tau nkag rau hauv lub qhov muag rau cov ntsia hlau no. Txwv tsis pub, hu rau tuaj yeem cuam tshuam tau ntau lossis feem ntau.
- Lub sijhawm ua ke, koj yuav tsum tau tshawb xyuas seb "lub tsho ntawm" yog "ntawm LEDs tsis muaj kev txhawj xeeb. Yog tias lawv txhawj xeeb, nws yog ib qho tsim nyog los muab cov ntaub qhwv insulating los ntawm cov duab los yog yas rau saum lub xaib.
Ua ntej Lub Rooj Sib Tham Zaum Kawg, koj yuav tsum tshawb xyuas seb txhua yam tau npaj tseg thiab raug tus nqi ntawm cov txiaj ntsig ntxiv yog xaiv. Nrog kev pab ntawm lub sijhawm xaim, peb sau tag nrho cov khoom ntawm cov hluav taws xob, thaum lub pob roj teeb txuas nrog hom kev ntsuas tam sim no. Txhua yam ua haujlwm, lub teeb ci! (Daim duab 13)
Fig.13.
Raws li qhov tshwm sim, cov kev noj tam sim no txawm tsawg tus nqi pom zoo. Hauv txoj ntsiab cai, nws tsis txaus ntshai thiab zoo. Muaj ib qho khoom me me nyob rau hauv cov ntaub teeb meem yuav muab cov roj teeb lossis cov khoom lag luam nrog kev tiv thaiv qis hauv sab hauv. Kev tiv thaiv ntxiv yog xaiv kom raug.
Tag nrho khaws lub teeb nyem. Yog txhua yam, hloov tau ua tiav. Thiab cov nyiaj tau siv ntau dua li thaum yuav lub teeb nyem tiav. (Daim duab. 14)
Fig.14
Qhib lub teeb nyem hloov kho, zoo dua nyob rau hauv chav tsaus nti, thiab koj chav tsev yuav qhib nrog ib sab tshiab, tsis tau paub dhau los! Koj yuav xav tsis thoob ntau yam nyob ib puag ncig peb pleev xim rau cov xim lumncent, npub thiab tsis kaj siab thaum lub zog hloov mus rau ultraviolet. Tab sis, feem ntau tseem ceeb, tsis txhob hnov qab txog koj lub zeem muag thiab tsis ci li lub teeb nyem zoo li lub teeb nyem hauv koj lub qhov muag lossis lwm tus.
Cov txheej txheem
Daim duab los ntawm tus sau
Sau: Oleg mamaev
Ib qho chaw