Cov txheej txheem:
- Kauj Ruam 1: Sau cov Qhov Yuav Tsum Tau
- Kauj Ruam 2: Tsim Circuit Court
- Kauj Ruam 3: Ua Circuit ntawm Veroboard/Perfboard
Video: LDR Raws Li Lub Teeb Sensor/Ntes: 3 Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25
Lub teeb pom kev thiab lub ntsuas ntsuas tau txais txiaj ntsig zoo rau microcontrollers thiab cov kab ke ua haujlwm thiab kev saib xyuas nruj kuj tseem yuav ua tiav. Ib qho ntawm qhov yooj yim tshaj plaws thiab pheej yig tshaj ntawm cov ntsuas no yog LDR. LDR lossis Lub Teeb Ntsuas Tus Kws Tiv Thaiv tuaj yeem siv tau yooj yim nrog opamp li kev sib piv thiab tshawb pom lub teeb tuaj yeem ua tiav.
LDR yog ib feem uas muaj (qhov sib txawv) tsis kam uas hloov pauv nrog lub teeb pom kev uas ntog rau nws. Qhov no tso cai rau lawv siv rau hauv kev pom lub teeb pom kev zoo. Qhov feem ntau hom LDR muaj kev tiv thaiv uas ntog nrog kev nce ntawm lub teeb pom kev poob rau ntawm lub cuab yeej (raws li qhia hauv daim duab ntawm no). Kev tiv thaiv ntawm LDR feem ntau yuav muaj cov kev tawm tsam hauv qab no: Nruab Hnub = 5000Ω thiab tsawg dua
Tsaus = 20000000Ω
Yog li koj tuaj yeem pom tias muaj qhov sib txawv loj ntawm cov nuj nqis no. Yog tias koj tau npaj qhov kev hloov pauv no ntawm daim duab koj yuav tau txais qee yam zoo ib yam uas tau qhia los ntawm daim duab qhia saum toj no. Nws yog qhov nkhaus hyperbolic.
Kauj Ruam 1: Sau cov Qhov Yuav Tsum Tau
1. Txhua tus qauv LDR (muab daim duab)
2. Txhua lub hom phiaj dav dav opamp (741/358)
3.100k resistor
4. 10k potentiometer
5. txiv neej lub taub hau
6. Multimeter thiab beadboard rau kev sim
7. veroboard, cov khoom siv sib txuas, cov hlau txiav
Kauj Ruam 2: Tsim Circuit Court
Sib sau ua ke thiab tsim cov Circuit Court ntawm lub khob cij rau kev sim ua ntej thiab ntsuas qhov ntsuas pib.
Siv lub ntsuas qhov ntsuas thiab teeb nws mus rau qhov hluav taws xob thiab siv qhov kev soj ntsuam ntawm tus pin 1 (tso tawm) ntawm opamp.
Siv lub teeb ntawm LDR (tshav ntuj lossis teeb pom kev zoo lossis ib yam dab tsi) thiab soj ntsuam cov zis ntawm tus pin 1.
Raws li lub teeb poob rau LDR, nws qhov kev tiv thaiv qis dua thiab qhov hluav taws xob hla nws qis dua thiab yog li tom qab teeb tsa pib (los ntawm lub lauj kaub), qhov hluav taws xob ntawm kev hloov pauv tus lej (LDR faib) ua tsawg dua li tsis hloov tus pin (lauj kaub) thiab cov zis tawm siab, raws li qhia los ntawm multimeter Ib yam li lub teeb pom kev tsawg zuj zus, nws tiv taus nce ntxiv thiab tom qab ntawd qhov hluav taws xob ntawm tus lej hloov pauv (LDR faib) ua ntau dua li tsis hloov tus pin (lauj kaub) thiab tso tawm qis, raws li qhia los ntawm multimeter.
Yog li qhov ntsuas siab lossis qis digital no tuaj yeem siv los ntawm ib lub microcontroller lossis ib qho kev sib tham hauv logic rau kev tshuaj xyuas ntxiv.
Nco ntsoov tias tsis txhob siv LED ntawm qhov tso tawm kom pom qhov pom vim tias lub teeb ntawm LED yuav cuam tshuam nrog LDR nyeem ntawv. Yog li siv multimeter rau qhov no.
Pom tseeb koj tuaj yeem siv LDR analog voltage thiab tus nqi ntxhib rau LUX tuaj yeem ntsuas.
Ib qho piv txwv me me ntawm PCB sib dhos kuj tau muab rau ntawm no. Circuit Court kos siv Fritzing.
Kauj Ruam 3: Ua Circuit ntawm Veroboard/Perfboard
Tom qab kev sim ua tiav, muab lawv tso rau ntawm daim ntawv me me. Hom kev hloov pauv yooj yim no yuav kho tau tam sim no tsawg heev los ua haujlwm thiab tsis muaj qhov yuav tsum tau ua kom nruj zog. Tab sis koj yuav pom tseeb tso qee lub zog muab cov khoom txiav tawm lub zog rau kev ua haujlwm zoo dua. Mount LDR ua tib zoo kom nws nthuav tawm ntawm lub ntsej muag tuaj yeem tau txais lub teeb kom poob rau nws.
Rau cov lus nug tawm tswv yim ntawm no lossis xa kuv ntawm [email protected]
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