Electronics Fundamentals: Ultraviolet LEDs

LEDs uas yog ntshav emit ultraviolet lub teeb, thiab vim li no, lawv tuaj yeem siv los simulate lub teeb dub. Txawm hais tias koj tuaj yeem tau txais cov ntshav liab ntau dua los ntawm kev sib xyaw xim liab thiab xiav ntawm RGB LED, lub teeb pom kev zoo yuav tsis muaj qhov cuam tshuam zoo ib yam li UV LEDs uas siv rau hauv cov khoom siv cuav thiab qhia txog kev ruaj ntseg holograms ntawm credit cards thiab daim ntawv tsav tsheb. Cia peb pom tias peb tuaj yeem muaj kev lom zem npaum li cas nrog cov ultraviolet LEDs. Cia saib seb peb yuav muaj kev lom zem npaum li cas.

LEDs uas emit ultraviolet lub teeb yog lub keeb kwm yav dhau.

LEDs muaj cov cua kub qis, lub neej ntev, thiab muaj zog ntau dua li lwm cov kev xaiv teeb pom kev zoo. Nyob rau hauv electromagnetic spectrum, ultraviolet txuas los ntawm ib ncig ntawm 400 nm mus txog rau 10 nm. Txawm hais tias qhov tso zis ntawm 380 nm yuav zoo tshaj plaws, LEDs hauv nqe lus nug ncav cuag lawv qhov siab tshaj plaws ntawm 400 nm, thiab lawv qhov ntau yog nyob qhov twg los ntawm 390 txog 440 nm. Ultraviolet lub teeb ntawm kev siv ntau dua yog ob qho tib si muaj zog dua thiab muaj qhov luv dua wavelength. Nws tsis tuaj yeem pom los ntawm qhov pom liab qab ntawm tib neeg. Vim tias muaj kev pheej hmoo ntawm daim tawv nqaij thiab qhov muag puas zoo ib yam li qhov tshwm sim los ntawm lub hnub ci, LEDs nrog luv luv wavelengths ntawm lub teeb ultraviolet yog kim dua thiab tsis tshua muaj.

Txoj Haujlwm Ultraviolet Light Detector Project tab tom ua tam sim no

Ultra Violet DetectorCov nyhuv ntawm UV LEDs tuaj yeem pom thaum lub pob ntawm LEDs, ib lub roj teeb 9-volt, thiab qee qhov 100-ohm resistors tau ntsaws rau hauv breadboard thiab txuas ua ke. Lawv tsis yog qhov phem heev uas lub teeb pom tsis tau, tab sis cov xim dawb thiab fluorescent yeej sawv tawm thaum lawv hnav khaub ncaws ua tsaug rau qhov no. Holograms tuaj yeem pom thaum nws siv nrog qee cov credit thiab daim npav ID. Tsis tas li ntawd, cov xov kev ruaj ntseg uas muaj nyob rau hauv qee cov ntawv xa nyiaj tuaj yeem txheeb xyuas tau. Cia peb mus rau ib yam dab tsi me ntsis ntxiv mus, ib yam dab tsi portable, thiab ... tej yam ntshav? Koj yog lub luag haujlwm rau kev pleev xim rau lub hnab yas me me hauv cov xim ntawm koj xaiv.

Vim tias lub teeb UV tsuas yog siv rau lub sijhawm luv luv xwb, lub sijhawm hloov lub laub khawm yuav ua haujlwm raws li kev tswj hwm tsim nyog. Nws tsis tsim nyog siv lub regulator lossis pub ntau dhau ntawm tam sim no rau hauv cov resistors yog tias koj xaim cov LEDs hauv series ua ib khub. Qhov no tshem tawm qhov xav tau ntawm kev xaim. Txawm li cas los xij, vim tias qhov no yog qhov siv hluav taws xob tsawg uas tsuas yog siv ob peb LEDs xwb, koj tuaj yeem tawm mus nrog tsuas yog siv tsib tus tiv thaiv, txawm tias cov khoom siv muab kaum ntawm lawv. Feem ntau, nws muaj peev xwm muaj ib qho resister rau txhua qhov LED.

Ib tug ntes ntawm ultraviolet teeb nyob rau hauv cov khoom siv

Koj yuav tsum:

• Soldering hlau

• Solder

• Hlau-snipping cov cuab yeej

• Laum lossis cov cuab yeej tig nrog lub 7/32 nti shank

kaum T-1 3-4 LEDs nyob rau hauv ib lub Purple Water Clear xim

Carbon Film Resistor nrog 100 Resistance

9V Alkaline roj teeb

Lub Snap ntawm lub roj teeb

Ib qho kev hloov nrog lub pob nyem khawm

(1) Protoboard

(1) Ib qhov project Case ua los ntawm ABS yas

Teem cov LEDs kom lawv nyob ntawm ib kawg ntawm lub protoboard, ua tib zoo saib xyuas kom muaj chaw txaus rau lub roj teeb thiab lub cev ntawm qhov hloov. Cov txheej txheem ntawm kev xaim yuav ua haujlwm nyuaj; Txawm li cas los xij, khoov cov txhuas thiab soldering lawv mus rau cov khoom txuas ntxiv tuaj yeem ua rau cov txheej txheem yooj yim dua.

Ntawm ib ntug ntawm lub protoboard, npaj cov LEDs hauv cov qauv pob zeb diamond nrog peb, plaub, thiab peb LEDs ntawm txhua txoj haujlwm. Lub kaum sab xis yog tsuas yog 20 degrees, yog li nws tsuas yog siv rau ntawm qhov ze heev rau txhua yam uas nws tau tsom. Vim hais tias lub protoboard yog ntawm lub ncoo-ib-qhov ntau yam thiab tsis feature bussed kab, koj yuav yog lub luag hauj lwm rau tsim koj tus kheej kab rau lub hwj chim thiab hauv av.

Lub hwj chim yog muab los ntawm cov hlau lead zoo ntawm lub roj teeb, uas txuas nrog lub hwj chim kab, uas nyob rau hauv lem yog txuas nrog ib tug ntawm cov coj ntawm txhua tus resistor. Txhua LED's anode yuav txuas nrog rau qhov sib thooj resistor qhov kev sib txuas. Lub anode ntawm ib lub LED yuav txuas mus rau lub cathode ntawm lwm LED, thiab lub cathode ntawm lub thib ob LED yuav txuas mus rau hauv av kab. Cov kab hauv av kuj tseem khiav mus rau nruab nrab LED cathode nyob rau hauv kab saum toj kawg nkaus los ntawm ib qho kev khoov cathode uas tshwm sim los ntawm kab nruab nrab; LED cathode no tso tag nrho cov ntsiab lus hauv av ua ke hauv ib qho chaw.

Muab qhov tsawg kawg nkaus ntawm qhov chaw muaj nyob rau hauv lub kaw lus, cov xaim dub los ntawm lub roj teeb pob tam sim no txuas rau hauv qab ntawm lub hwj chim kab; Txawm li cas los xij, ua tib zoo xav txog qhov tseeb tias nws yuav zoo dua los tso nws qhov chaw nyob ze ntawm lub rooj tsavxwm, qhov no tau ua tiav. Qhov ntawd kuj tseem yuav tso nws ze rau qhov chaw uas cov LEDs nyob hauv av. Txuas qhov ntev ntawm cov hlau los ntawm ib ceg ntawm qhov hloov mus rau qhov chaw hauv av rau cov LEDs. Ntawm lwm ceg ntawm tus tes hloov, solder qhov tsis zoo cov hlau lead los ntawm lub roj teeb snap.

Rau qhov hloov pauv, lub qhov ntsuas 7/32 ntiv tes yuav tsum tau tho rau sab ntawm lub thawv. Nruab qhov hloov pauv siv cov khoom kho vajtse uas tau muab. Txawm hais tias PCB thiab LEDs tsis sib haum xeeb ntawm cov npoo ntawm rooj plaub, nws yog qhov nyuaj kom haum rau cov roj teeb hauv qhov ntawd vim tias lub casing yog taw qhia ntev. Ua ib qho kev txiav tawm rau LEDs hauv lub hau los ntawm kev kos cov cheeb tsam tsim nyog. Ib qho yooj yim square cutout yuav ua txoj hauj lwm, tab sis lub pob zeb diamond profile rau LEDs yuav tshwm sim ntau txaus nyiam. Koj tuaj yeem ua qhov rau txhua qhov LED los ntawm kev siv lub laum me me ntsuas 7/32 ntiv tes. Txhawm rau kom ntseeg tau tias txhua yam ua haujlwm zoo, txuas lub roj teeb thiab tswj lub siab ntawm lub pob. Muab tso rau sab saum toj, tom qab ntawd tshuaj xyuas cov nyiaj ntsuab, daim npav rho nyiaj, lossis lwm yam khoom koj tuaj yeem pom hauv.

Ntau lub tswv yim thiab kev txhais

Ib feem ntawm cov electromagnetic spectrum uas nyob dhau cheeb tsam violet thiab sib raug rau lub teeb nrog wavelengths tsawg dua 4, 000 angstrom (nm) units.

Fluorescent yog hais txog ib yam dab tsi uas ci ntsa iab, ci ntsa iab, lossis ci ntsa iab thiab tseem muaj cov khoom ntawm fluorescence.

Fluorescence txhais tau tias yog cov pa tawm ntawm hluav taws xob, tshwj xeeb tshaj yog pom lub teeb, los ntawm ib yam khoom thaum nws raug hluav taws xob los ntawm qhov chaw sab nraud, xws li lub teeb lossis x-rays.

Electromagnetic spectrum: Tag nrho cov spectrum, pom raws li qhov txuas ntxiv, ntawm txhua hom hluav taws xob, sib nqus, thiab pom hluav taws xob, xws li gamma rays nrog lub wavelength ntawm 0.001 nm mus rau cov nthwv dej ntev nrog lub wavelength uas ntau dua. ib lab km.

Lub spectrum ntawm pom lub teeb muaj xws li tag nrho cov teeb uas yuav pom tau los ntawm tib neeg lub qhov muag raws li xim thiab ntau yam nyob rau hauv wavelength ntawm roughly 400 mus rau 700 nanometers (nm).

10W UV LED Tube

Nta:

● 【UPGRATED BLACKLIGHT】 : Hwm zoo blacklight nrog V-zoo li tus thiab 2 kab ntawm lub teeb hlaws kom ntseeg tau qhov siab tshaj plaws ntawm UV dub lub teeb. wavelength: 395-400nm, UVA- theem
● 【USB ua haujlwm thiab 2 MODES SWITCH】: Koj tuaj yeem teeb nws los ntawm koj lub txhab nyiaj fais fab. Thiab nws yuav los nrog 5.9ft qaum nrog rau / tawm mus. Thiab nws muaj 2 qib brightness rau koj xaiv.
● 【Wide Scope of APPLICATIONS】: Nws tsis yog rau chav pw kho kom zoo nkauj xwb, tab sis tiag tiag nws yog ib qho zoo heev daim ntaub ntawv rau blacklight kev ua tau zoo, lub ntsej muag painting, glow tog thiab blacklight tog.

Specification: