Lub Hom Phiaj Siv IR: 9 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26

Hauv qhov haujlwm me me no, peb yuav tsim cov khoom tsis siv neeg suav nrog cov khoom siv yooj yim. Txoj haujlwm no yooj yim dua thiab tsuas yog suav nrog cov khoom siv hluav taws xob yooj yim. Lub voj voog no yog ua raws Infrared txhawm rau txheeb xyuas cov khoom, kom paub ntau ntxiv txog yuav ua li cas IR ua haujlwm, mus ntsib kuv IR Cov Lus Qhia. Koj tuaj yeem kawm txhua yam txog cov ntsiab lus tseem ceeb ntawm IR nyob ntawd.

Khoom siv

Cov ntaub ntawv nyoos: A4 CardBoard (Tsim lub cev thiab hauv paus)

Circuit Court:

Lub khob cij x1

CD4026BE x2

Lm358x 1

2n222/BC547 x1 (lossis ib qho sib npaug transistor)

2pin laub-khawm x1

10k potentiometer x1

220ohm resistor x2

680ohm resistor x2

10 k resistor x2

2x Common Cathode 7-ntu zaub

IR LED x 1

Photodiode x 1

Muaj ntau ntau cov kab jumper

9v zog

Cov Cuab Yeej: Soldering Iron, Wire stripper/cutter, Txiav riam, PVA Glue, Protractor, Ruler thiab lwm yam.

Kauj ruam 1: Saib ua ntej

Lub tswv yim ntawm txoj haujlwm no yog los tsim cov khoom ntsuas kom suav cov khoom me me xws li cov khoom siv, Lego cib, hlaws thiab lwm yam. ntawm IR detectors.

Cov txiaj ntsig ntawm Photodiode yuav dhau los ntawm TSIS lub qhov rooj thiab tom qab ntawd nkag mus rau tus sib piv. Cov duab saum toj no qhia yuav ua li cas IR khub pom ib qho khoom.

Kauj ruam 2: Circuit Court

Lub Circuit Court siv rau txoj haujlwm no tsis nyuaj, nws siv OP amp (LM358) los ua tus tswj kev tawm tswv yim rau 7-segment display chip (CD4026BE). Kuv tsim cov Circuit kom nws muaj 2 7-ntu qhia uas muab nws 99 tus lej lossis 99 yam khoom muaj peev xwm suav tau. Qhov ntawd yuav tsum muaj ntau, tab sis yog tias nws tsis yog, koj tuaj yeem txuas lwm cov zaub uas yuav muab rau koj 999 tus lej, twv yuav raug hu txaus.

Lub pob hauv Circuit Court yog rau rov pib dua.

Lub potentiometer yog txhawm rau kho qhov rhiab heev ntawm photodiode.

Daim duab qhia hluav taws xob saum toj no yog tib yam li cov khoom siv hluav taws xob. Tej zaum nws yuav nyuaj me ntsis los nyeem raws li nws tau nrawm rau hauv qhov chaw uas raug kaw.

NCO TSEG: Lub transistor hauv daim duab qhia chaw ntawm lub khob cij yog qhov tsis raug ib puag ncig, tab sis nws tseem yuav tsum ua haujlwm. Kuv yuav qhia tawm ntawm nws ib puag ncig txawm tias qee qhov transistors ua haujlwm ob txoj hauv kev. Ua raws txoj kab hluav taws xob ntawm transistor hauv daim duab qhia chaw yog tias koj tsis meej pem.

Kauj Ruam 3: Kev Xeem Circuit Court

Ua ntej koj tsim lub Circuit Court rau hauv txoj haujlwm, sim nws yog lub tswv yim ntse. Kuv tau hloov kho lub voj voog me me (los ntawm kev hloov IR LED mus rau ib lub thawv ntawv sib txawv los tsim IR nqaj nruab nrab ntawm nws thiab cov duab photodiode). Txuas lub Circuit Court mus rau 9v lub zog siv thiab cov lej yuav pom nrog ob 0s. Tom ntej tawg IR nqaj nruab nrab ntawm IR LED thiab Photodiode los ntawm kev thaiv nws nrog ntiv tes lossis ib yam khoom, tam sim no ib tus lej yuav tig los ntawm 0 txog 1, rov ua cov txheej txheem thiab Circuit Court yuav suav tus lej ntawm lub sijhawm IR nqaj yog tawg (khoom).

Qhov ntse tshaj uas yuav tsum ua tam sim no yog ua kom lub voj voog no mus rau hauv PCB, hmoov tsis zoo, Kuv muaj teeb meem nrog kev xaj kuv li yog li ntawm qhov haujlwm no, kuv yuav siv lub khob cij.

Troubleshoot: Yog tias koj lub Circuit Court tsis ua haujlwm, kos:

Thaiv, Cheebtsam kev taw qhia (polarity lossis txoj kev uas cov chips ntsib) (Tshwj xeeb tshaj yog Photodiode)

Fais fab mov, IR Pair (saib yog lawv ua haujlwm nrog ib qho yooj yim Circuit Court los ntawm kuv "Txhua Yam Txog IR" Cov Lus Qhia)

Kauj Ruam 4: Lub Cev

Kuv tus qauv tsim tej zaum tsis yog qhov pom zoo tshaj plaws tab sis nws ua haujlwm tau zoo.

Txiav txhua yam tawm, qhov me me tsis muaj teeb meem tiag tiag tab sis kuv xav kom lub kaum sab xis ntawm txoj kab nqes yuav tsum yog ntawm 20 txog 45 degrees. Lub hauv paus phaj yuav muaj lub khob cij los yog PCB txuas rau nws yog li muaj qhov tsawg kawg nkaus.

Cov khoom siv ntawm lub cev tsis muaj teeb meem tiag tiag tab sis kuv yuav xaiv qee yam uas nyias thiab muaj zog xws li cov ntawv nthuav tawm.

Kauj ruam 5: Kaw nws

Sib sau ua ke cov qauv thaum txhua yam raug txiav tawm. Siv daim kab xev los tuav nws ua ke kom zoo thiab siv cov kua nplaum. PVA kua nplaum yog qhov zoo tshaj tab sis nws yuav siv sijhawm me ntsis kom qhuav. Tam sim no, tos.

Thaum nws tau lees paub tias cov kua nplaum tau qhuav, tev daim kab xev ntawm thiab koj cov qauv tiav lawm.

Kauj Ruam 6: Ntxiv Circuit Court

Khaws lub khob cij nrog lub voj voog mus rau qhov chaw khoob ntawm lub hauv paus ntawm tus qauv. Nco ntsoov tias 7-ntu cov lus tau ntsib koj yog li koj tuaj yeem nyeem cov lej kom raug.

Kauj Ruam 7: Txuas IR Pair

Khoov qhov kawg ntawm ob qho tib si IR LED thiab Photodiode ntawm 90 degrees. Kuaj qee cov xov hlau mus rau qhov kawg ntawm cov dav hlau (cov xaim yuav tsum ntev txaus txhawm rau txuas cov diode tsim nws qhov chaw teeb tsa rau lub khob cij). Tom ntej no, txuas IR khub rau Breadboard.

Khiav koj lub Circuit ib zaug ntxiv kom ntseeg tau tias koj cov laug txuas ua haujlwm.

Kauj Ruam 8: Kov Kawg

Kua IR khub rau ntawm txoj kab nqes hav, xyuas kom lawv nyob ntawm ob sab thiab tig ib sab los tsim qhov nqaj ntawm IR.

Nkaum cov xov hlau los ntawm kev lo nws rau ntawm ntug ntawm txoj kab nqes hav.

Tom qab ntawd txiav ob daim duab los qhia, ib puag ncig 5cm ntev thiab qhov siab ntawm phab ntsa ntawm koj txoj kab nqes hav. Muab nws tso rau hauv raws li qhia hauv daim duab kawg, tuav nws nrog daim kab xev raws li koj siv kua nplaum los lo nws.

Thaum qhov ntawd ua tiav, tshem tawm txhua daim kab xev, khiav lub Circuit Court los tshuaj xyuas nws tseem ua haujlwm raug. Yog tias koj xav kho nws, ces qhov no yog lub sijhawm los ua nws.

Kev daws teeb meem hauv Circuit:

Yog tias lub txee tsis suav thaum koj tsoo IR nqaj (tab sis nws tau ua haujlwm yav dhau los), tom qab ntawd nws yuav yog vim IR nqaj tsis raug thaiv tag nrho, qhov no yog tshwm sim los ntawm qee qhov kev xav tsis zoo uas cov duab los tsim. Qhov no feem ntau tuaj yeem daws tau los ntawm kev lo ib daim me me ntawm cov ntawv dub hauv qab IR LED yog li nws nqus tau ib qho kev xav txog IR. Yog tias qhov no tsis yog qhov teeb meem, xyuas yog tias koj muaj luv-circuited ib qho ntawm cov diodes thaum lo rau lawv.

Kauj ruam 9: Ua tiav

Tam sim no nws tiav lawm!

Hwj chim nws thiab pib suav!