Qhov ntau ntawm daim ntawv thov ntawm photocells yog qhov dav heev. Lawv yog qhov tsim nyog nyob rau hauv cov phiajcim xaib, qhov uas lawv siv hauv kev xa xov yees duab, ua rau muaj kev cuam tshuam los ntawm lub teeb liab. Yog tsis muaj lawv, nws tsis tuaj yeem ua qee qhov kev sib txuas lus, piv txwv li, lub xov tooj sib, nrog rau laser. Photocells yog siv dav hauv ntau cov ntsuas ntsuas. Txawm li cas los xij, lawv tsis yog ib txwm muag. Tab sis photocell tuaj yeem ua los ntawm koj tus kheej.
Nws yog qhov tsim nyog
- -yog lub ntsuas kub;
- -semiconductor diodes;
- - tawm ntawm kev txiav txim microcalculator;
- -spring muaj mob;
- -Txoj Kev Sib Hloov;
- -qhov hlau;
- -ib feem ntau lossis avometer;
- -nawb.
Cov Lus Qhia
Kauj ruam 1
Rau kev tsim cov khoom siv niaj hnub no, koj tuaj yeem siv: cov photocell npaj ua los ntawm cov duab qub me me los yog cov khoom siv hluav taws xob ntim ntawm cov iav ntim rau hauv rooj plaub iav. Ntxuav cov xim ci-rau kom tsis txhob lo tawm ntawm diode, yog tias muaj. Yuav luag txhua qhov LED tuaj yeem ua haujlwm ua photocells.
Kauj ruam 2
Ua ib lub photocell los ntawm lub xovtooj ntawm hnub ci los ntawm microcalculator. Nco ntsoov tias koj tsis tuaj yeem muag ncaj ncaj rau daim photocell. Cua sov nws yuav luag yeej liam nws. Yog li no, yog tias lub roj teeb muaj cov kais dej uas tsis haum rau soldering, nws yog qhov zoo tshaj rau kev nyab xeeb nws cov phaj nrog kev sib cuag ntawm lub caij nplooj ntoo hlav. Lawv tuaj yeem coj los ntawm cov xov tooj hluav taws xob tsis zoo. Khom xim rau lub caij nplooj ntoo hlav ntawm ib qho kawg hauv lub rooj tsavxwm los ntawm soldering cov xov hlau rau lawv. Lwm qhov xaus yuav tsum tau muab tso rau kom tawm tsam cov yam xav ua ntawm cov hnub ci vaj huam sib luag. Tib yam siv rau selenium lossis silicon paib los ntawm photoexposure meters.
Kauj ruam 3
Photocells ua los ntawm lub hnub ci hlwb ntawm microcalculators thiab ntsuas cov ntsuas pa cov paib yog inert heev. Yog li ntawd, lawv tsuas yog tsim nyog rau cov cuab yeej teleautomatic. Txhawm rau kom tau txais lub teeb tsa hluav taws xob (piv txwv li lub xov tooj hluav taws xob), kev ua kom siab dua tuaj yeem ua tau. Lawv tuaj yeem ua los ntawm qub germanium lossis silicon Soviet transistors ntawm P lossis MP series. Lawv muaj nyob hauv cov kab tawg lossis cov kab xev. Lawv feem ntau raug muag hauv xov tooj cua ua lag luam.
Kauj ruam 4
Lub cev ntawm xws li transistor zoo li tshwj xeeb "lub kaus mom", nyob rau hauv qis ntawm uas muaj hluav taws xob, thiab lub sab saud npog cov khoom siv hluav taws xob semiconductor. Koj tuaj yeem ua qhov no. Siv daim ntawv los txiav ntu qhov siab ntawm lub cev. Tshem nws kom zoo. Tshuab tawm sawdust nrog cov tshuab cua tshuab nqus tsev
Kauj ruam 5
Kev siv tej ntsuas ntsuas (tester, multimeter) ntsuas cov photocurrent ntawm cov khub ntawm cov kab hluav taws xob. Muaj peb qho hluav taws xob zoo li no: emitter, tus sau nyiaj thiab lub hauv paus. Feem ntau, lub siab tshaj plaws tam sim no tshwm sim ntawm n-p junctions emitter-puag lossis tus sau-puag. Xaiv cov khub nrog cov koob yees duab siab tshaj plaws. Lawm, ntau dua-zaus transistor koj siv, ntau dua-zaus lub photocell yuav dhau los ua. Raws li, transistors haib dua yuav muab ntau dua photocurrent. Kev ntsuas yuav tsum tau ua los ntawm taws lub photocell nrog qhov siv lub teeb pom kev zoo (piv txwv li, lub rooj teeb txawb los ntawm qhov sib nrug deb.
