Cov txheej txheem:

Fluorescent Crystal Display Stand: 5 Kauj Ruam (nrog Duab)
Fluorescent Crystal Display Stand: 5 Kauj Ruam (nrog Duab)

Video: Fluorescent Crystal Display Stand: 5 Kauj Ruam (nrog Duab)

Video: Fluorescent Crystal Display Stand: 5 Kauj Ruam (nrog Duab)
Video: Rikoo Rosewood LED White Light Display Stand 2024, Hlis ntuj nqeg
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Fluorescent Crystal Display Stand
Fluorescent Crystal Display Stand
Fluorescent Crystal Display Stand
Fluorescent Crystal Display Stand

Rov qab thaum kuv kawm tiav los ntawm tsev kawm qib siab, Kuv tau ua haujlwm ntawm kev sim rau qhov teeb meem tsaus ntuj ncaj qha hu ua CRESST. Qhov kev sim no siv cov ntsuas ntsuas raws qhov ua kom pom cov calcium tungstate (CaWO4) muaju. Kuv stilI muaj cov khoom siv tawg ua khoom plig thiab ib txwm xav tsim cov khoom muag uas ua rau muaj kev zoo siab siv lead ua.

Kuv paub tias tib neeg tej zaum yuav tsis theej cov qauv tsim no vim tias calcium tungstate muaju tsis muaj muag thiab kuj yog UVC LEDs kuv siv yog kim heev. Txawm li cas los xij, nws yuav pab tau koj yog tias koj tab tom npaj tsim lub rooj muag zaub rau lwm cov tshuaj fluorescent zoo li amber lossis fluorite.

Kauj Ruam 1: Sau Cov Khoom

Sau Cov Khoom
Sau Cov Khoom
  • fluorescent CaWO4 siv lead ua
  • lub thawv me me (piv txwv li conrad.de)
  • 278 nm UVC LED (piv txwv li Crystal IS)
  • LED starboard (hlau tub ntxhais PCB) (piv txwv li Lumitronix)
  • thermal ncoo (piv txwv li Lumitronix)
  • heatsink (xws li Lumitronix)
  • nce qib module (piv txwv li ebay.de)
  • LED txhawb tus tsav tsheb (piv txwv li ebay.de)
  • LiPo roj teeb (piv txwv li ebay.de)
  • swb swb
  • 0.82 Ohm 1206 SMD resistor

Fluorescence hauv calcium tungstate tuaj yeem zoo siab ntawm nthwv dej <280 nm. Qhov no nyob deb ntawm UV thiab LEDs ntawm qhov nthwv dej no feem ntau kim heev (~ 150 $/pc). Hmoov zoo, Kuv tau txais qee qhov 278 nm SMD LEDs dawb vim tias lawv tau tso tseg cov qauv kev tsim qauv los ntawm lub tuam txhab kuv ua haujlwm. Cov hom LEDs no feem ntau yog siv rau kev tua kab mob.

CEEB TOOM: UV lub teeb tuaj yeem ua rau muaj kev puas tsuaj rau lub qhov muag thiab tawv nqaij. Xyuas kom muaj kev tiv thaiv kom raug, xws li UV tsom iav

Raws li daim ntawv qhia tshwj xeeb, cov LEDs muaj lub zog tso zis ntawm ~ 25 mW, kev ua haujlwm tam sim no ntawm 300 mA thiab qhov siab rau qhov siab ntawm ~ 12 V. lub dab dej kub kom tsim nyog. Yog li ntawd, kuv yuav cov hlau hlau PCB (lub hauv paus pib) nrog txoj hauv kev hneev taw, lub ncoo cua sov thiab lub dab dej me me. Raws li LEDs tuaj yeem yooj yim puas los ntawm cov dej ntws siab dhau lawm lawv yuav tsum tau ua haujlwm nrog tus tsav tsheb tas li. Kuv tau txais qhov pheej yig heev tam sim no txhawb tus tsav tsheb raws li XL6003 IC uas tseem nce qib qhov tso tawm qhov hluav taws xob. Raws li cov ntaub ntawv, qhov hluav taws xob tso tawm yuav tsum tsis txhob siab dua 2x qhov hluav taws xob nkag. Txawm li cas los xij, txij li kuv xav kom muaj hwj chim txhua yam los ntawm 3.7 V LiPo roj teeb, Kuv tau ntxiv lwm qib hloov pauv uas ua rau lub roj teeb hluav taws xob nce mus rau ~ 6 V ua ntej tus tsav tsheb LED. Cov zis tam sim no ntawm tus tsav tsheb LED tau teeb tsa los ntawm ob lub SMD resistors txuas nrog ua ke ntawm lub rooj tsavxwm. Raws li XL6003 cov ntaub ntawv tam sim no tau muab los ntawm I = 0.22 V/Rs. Los ntawm lub neej ntawd muaj ob qho 0.68 Ohm resistors txuas nrog ua ke uas yog ~ 650 mA. Txhawm rau txo qhov tam sim no, kuv yuav tsum hloov cov resistors nrog 0.82 Ohm resistor uas yuav muab ~ 270 mA.

Kauj ruam 2: Mounting LED

Mounting lub LED
Mounting lub LED
Mounting lub LED
Mounting lub LED

Hauv cov kauj ruam tom ntej kuv tau siv cov LED mus rau ntawm lub hnub qub. Raws li twb tau txiav txim siab nws yog ib qho tseem ceeb kom tau txais PCB nrog qhov hneev taw ntawm koj li LED. Soldering ntawm cov hlau hlau PCB tuaj yeem nyuaj raws li pawg thawj coj saib ua kom sov sov zoo dua. Txhawm rau ua kom yooj yim dua nws tau pom zoo kom muab PCB rau ntawm lub phaj kub tab sis kuv kuj tau tswj kom ua yam tsis muaj. LED yuav tsum tau txuas ua ke nrog lub rooj tsavxwm nrog cov tshuaj ua kom sov. Tom qab qhov muag kuv txuas lub hnub qub mus rau lub rhaub dej siv lub ntsuas cua sov.

Kauj Ruam 3: Txuas Hluav Taws Xob

Txuas Hluav Taws Xob
Txuas Hluav Taws Xob
Txuas Hluav Taws Xob
Txuas Hluav Taws Xob

Kuv glued tag nrho cov khoom siv hluav taws xob rau hauv qab phaj ntawm kuv lub thawv ntawv. Nco ntsoov tias lub rhaub dej kub tau kub heev yog li nws muaj txiaj ntsig zoo los siv cov kua nplaum uas tuaj yeem tiv taus qhov kub siab. Lub roj teeb tau txuas mus rau qib nce module uas nce qhov hluav taws xob mus txog 6 V. Cov zis yog tom qab ntawd txuas rau lub zog txhawb nqa LED uas txuas nrog LED. Ib qho kev hloov swb tau ntxiv tom qab lub roj teeb tab sis koj yuav xav ua cov laug tsuas yog tom qab koj tau teeb tsa lub swb hloov pauv hauv cov kauj ruam tom ntej.

Kauj Ruam 4: Hloov Kho Cov Ntaub Ntawv

Hloov Kho Cov Ntaub Ntawv
Hloov Kho Cov Ntaub Ntawv

Kuv tau ua qee qhov kev hloov kho rau qhov thaiv nrog kuv cov cuab yeej dremel. Lub qhov taub zoo li tus tau muab tso rau sab saum toj rau lub teeb LED kom dim. Ib qho ntxiv, kuv tso qee qhov qhib rau sab rau qhov cua nkag. Lwm lub qhov tau ua rau qhov swb uas tau kho nrog cov kua nplaum kub. Kuv tsis zoo siab heev nrog kev saib ntawm qhov thaiv vim tias lub qhov zoo li ntxhib. Luckily lawv feem ntau tsis pom. Lub sijhawm tom ntej kuv yuav zaum ua lub thawv uas siv lub tshuab txiav laser.

Kauj ruam 5: Tiav lawm

Tiav lawm!
Tiav lawm!
Tiav lawm!
Tiav lawm!

Tom qab kaw qhov thaiv qhov project tau ua tiav. Cov siv lead ua tuaj yeem tso rau ntawm qhov hlais saum toj thiab zoo siab los ntawm LED los ntawm hauv qab no. Kev tso tawm fluorescence yog qhov kaj heev. Nco ntsoov tias txhua lub teeb tau los ntawm cov siv lead ua zoo li UVC lub teeb pom kev tsis tau.

Kev tsim kho tuaj yeem txhim kho hauv ob peb txoj kev. Ua ntej tshaj plaws kev tswj hwm cua sov ntawm LED tsis zoo thiab lub dab dej kub tau kub heev. Qhov no yog vim tias muaj qhov cua me me heev vim tias lub dab dej kub tau teeb tsa sab hauv. Txog tam sim no kuv tsis twv kom khiav LED ntev dua li ob peb feeb. Qhov thib ob, Kuv xav ua lub thawv ntim zoo dua zaum tom ntej siv lub thawv txiav laser txiav los ntawm acrylic dub. Ib qho ntxiv, LiPo charger module nrog microUSB ntsaws tuaj yeem txuas ntxiv kom koj tsis tas yuav qhib lub thawv rau rov them nyiaj.

Pom zoo: