Cov ntsuas ntsuas tam sim no tau muag hauv yuav luag txhua lub khw muag khoom hauv tsev. Lub suab sensor rau teeb pom kev zoo yog siv nyob rau hauv lub neej txhua hnub, piv txwv li, hauv kev nkag. Tau kawg, koj tau mob siab rau cov teeb uas ci ntsa iab thaum koj mus ze lawv? Qhov no yog ib qho piv txwv ntawm kev siv cov lus tsa suab sensors hauv lub neej niaj hnub, thiab muaj ntau ntau yam piv txwv. Lub zog los yog txav sensor yog siv nyob rau hauv tsev thiab muaj lub tswb systems, lawv nyob rau hauv robotics thiab automation circuits, ntsuas qhov ceev ntawm ib tug hluav taws xob lub cev muaj zog, thiab lwm yam. Tab sis ntxiv rau kev siv hauv kev lag luam, lub suab sensor kuj tseem siv tau hauv lub neej txhua hnub. Ntxiv mus, yog tias koj ua lub suab sensor nrog koj tus kheej txhais tes, paub txog lub tswv yim ntawm nws txoj haujlwm, koj tuaj yeem siv cov cuab yeej zoo li no los qhib lossis tawm ib qho khoom siv hauv tsev.
Cia peb saib cov khoom tseem ceeb ntawm cov khoom. Thawj qhov uas koj yuav tsum tau pib nrog ua lub suab sensor nrog koj tus kheej txhais tes yog muab lub zog rau nws. Cov khoom siv hluav taws xob yuav tsum muaj kev nyab xeeb, muaj qhov me me raws li qhov ua tau, thiab tsim kom muaj kev ua haujlwm tsis tu ncua hauv kev thauj khoom. Zoo rau lub hom phiaj notus qauv fais fab mov rau them cov roj teeb lossis lwm yam nrog cov zis hluav taws xob ntawm tsib volts. Ua lub suab sensor nrog koj tus kheej txhais tes yog qhov yooj yim heev, nws tsis tas yuav tsum muaj qhov tsawg lossis kim.
Tam sim no peb xaiv lub photocell, ib qho twg haum rau peb lub hom phiaj, nws thaj chaw tsis muaj teeb meem, me ntsis tom qab peb yuav pom vim li cas. Photocell cathode
txuas mus rau qhov txiaj ntsig zoo ntawm lub zog hluav taws xob. Tam sim no qhov kev txwv tam sim no ntawm photocell, cov ntsuas tam sim no yuav tsum ntws los ntawm nws, txwv tsis pub nws yuav tsuas hlawv tawm. Raws li Ohm txoj cai, peb xam tus nqi tiv thaiv, thiab solder nws mus rau lub anode davhlau ya nyob twg ntawm lub photocell.
Tam sim no qhov kev hloov kho, 10 kOhm txaus, ib qho ntawm cov lus xaus yog soldered rau cov khoom rho tawm, qhov thib ob - mus rau qhov kawg ntawm qhov kev txwv tam sim no. Tam sim no peb sib sau ua ke lub emitter follower circuit siv ib tug npn junction transistor. Nws lub hauv paus yog soldered mus rau qhov dawb kawg ntawm kev tuning kuj. Lub collector yog ncaj qha soldered mus rau qhov zoo davhlau ya nyob twg ntawm lub hwj chim qhov chaw, thiab ib tug me me fais fab relay nrog ib tug nominal voltage ntawm tsib volts muaj nyob rau hauv lub emitter Circuit Court. Peb solder lwm kawg ntawm relay coil mus rau qhov tsis zoo davhlau ya nyob twg ntawm qhov chaw. Peb sib sau ua ke cov neeg sib txuas lus raws li tus kheej lub tswv yim, uas yog, thawj zaug lub suab sensor tau tshwm sim, tus relay yuav rub thiab muab lub zog nrog nws cov neeg sib cuag.
Kev sib txuas pub dawb mus rau qhov chaw thauj khoom, xws li teeb pom kev zoo lossis lub kaw lus kaw, txhua yam nyob ntawm koj qhov kev xav. Raws li koj tuaj yeem pom, ua lub suab sensor koj tus kheejtes yog ib qho yooj yim. Qhov tseem ceeb tshaj plaws nyob rau hauv cov ntaub ntawv no yog tsis txhob overload cov neeg, vim hais tias cov relay siv nyob rau hauv lub Circuit Court yog tsawg-power. Tab sis nyob rau hauv daim ntawv ntawm ib tug load, peb yuav siv tau lwm relay, nrog ntau haib hu, uas yuav muab rau koj nrog lub load koj xav tau.
Txhawm rau rov pib lub cuab yeej rau nws lub xeev qub, nws txaus los cuam tshuam luv luv ntawm nws lub zog. Ntxig ib tug me me tus kheej-reset hloov mus rau hauv lub hwj chim Circuit Court. Raws li cov hluav taws xob hluav taws xob, koj tuaj yeem siv lub laser pointer, muab nws lub zog tas li los ntawm peb qhov chaw. Tam sim no nws paub meej tias vim li cas thaj chaw ntawm lub photocell tsis ua lub luag haujlwm, cov hluav taws xob ntawm tus taw tes yog monochrome thiab lub teeb ci tsis hloov hauv cheeb tsam.
