Cov txheej txheem:
- Khoom siv
- Kauj ruam 1: Tsim Circuit Court
- Kauj Ruam 2: Simulation
- Kauj Ruam 3: Ua Circuit Court
- Kauj ruam 4: Xeem
Video: Optocoupler System: 4 Cov Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25
Kab lus no piav qhia txuas rau Optocoupler System.
Lub kaw lus no tau siv los cais ob lub zog siv hluav taws xob. Cov ntawv thov raug suav nrog kev kho mob uas tus neeg mob yuav tsum raug cais tawm ntawm qhov ua tau ntawm lub hwj chim tsis raug thiab nce ntxiv kom tsis txhob muaj hluav taws xob poob. Cov kab ke no tau siv hauv EEG lub tshuab ECG.
Lub tshuab hluav taws xob feem ntau yog siv los ntawm cov roj teeb uas rov them tau.
Lub Circuit Court tuaj yeem ua haujlwm nrog tsuas yog ib qho 1.5 V fais fab mov.
Khoom siv
Qhov chaw: optocoupler, 8 tus pin xaim lub qhov (socket), 1 kohm resistor - 5, 10 kohm - 1, 1 Megohm potentiometer - 2 (tus potentiometer thib ob tuaj yeem tsuas yog qhov sib txawv resistor kom txuag tau nyiaj), xaim xaim xaim, rwb thaiv tsev hlau, fais fab tuag (3 V lossis 1.5 V tuaj yeem siv nrog AA/AAA/C/D roj teeb), pawg thawj coj saib, lub roj teeb.
Cov cuab yeej: USB oscilloscope, xaim hlua, pliers, xaim qhwv cov cuab yeej.
Tsis teb los tau: Solder.
Yeem cov cuab yeej: Soldering hlau, ntau 'meter'.
Kauj ruam 1: Tsim Circuit Court
Kuv siv lub qub PSpice simulation software los txo lub sijhawm kos duab.
Cov tswv yim yuav tsum siv roj teeb txhawm rau tiv thaiv teeb pom kev zoo zog lossis lwm lub zog nce los ntawm kev nkag mus thiab ua rau tus neeg siv raug mob.
Kev tsis zoo rau qhov tso tawm yog lub tswv yim zoo heev vim tias lub zog los ntawm cov duab diodes nkag tau tsawg heev.
Ro yog siv rau kev tiv thaiv luv Circuit Court tiv thaiv.
Ci yog Bipolar capacitor.
Cov kab hluav taws xob tso tawm zoo ib yam li BJT NPN bipolar transistor.
Kauj Ruam 2: Simulation
Cov teeb liab tso tawm tau rov qab thiab me dua li lub teeb liab nkag. Txawm li cas los xij, kev sim yuav ua pov thawj tias lub kaw lus tau txais -1.
Yuav muaj qhov ua tsis tau zoo hauv qhov qauv PSpice tsis raug uas kuv tau siv.
Kauj Ruam 3: Ua Circuit Court
Koj tsis xav tau lub zog tiv thaiv hluav taws xob siab rau qhov Circuit Court uas kuv tau siv.
Kuv siv ib qho 3 V fais fab mov hloov ob vim tias kuv tsis muaj lub roj teeb 3 V.
Cov tswv yim tsis pom zoo resistor Rb1 yuav tsum yog qhov hloov pauv tau yooj yim heev. Kuv tsuas yog siv lub potentiometer vim kuv tsis muaj lwm yam khoom siv. Koj tuaj yeem sim siv qhov tseeb trimpot. Nws coj kuv ntev los kho tus nqi Rb1 vim tias kuv tsis siv lub trimpot. Tus nqi qis dhau mus rau siab kom tiv thaiv cov teeb liab tso tawm.
Tus nqi ntawm Rc1 tsis xav tau qhov tseeb. Koj tuaj yeem siv txhua yam sib txawv resistor uas koj xav tau. Koj tuaj yeem hloov pauv Rc1 nrog cov tiv thaiv ruaj khov tom qab ntsuas qhov tsis kam uas xav tau los khaws cov zis ntawm ib nrab ntawm qhov hluav taws xob.
Kauj ruam 4: Xeem
Kuv siv tus nqi pheej yig $ 25 USB Oscilloscope los ntawm eBay.
Thawj kauj ruam tau kho qhov ntsuas hluav taws xob tso tawm, Rc1 kom lub zog tso tawm yog ib nrab ntawm qhov hluav taws xob.
Thawj thawj kauj ruam thib ob tau kho lub hwj chim tawm tswv yim, Rb1 kom lub teeb liab nkag mus tsis txaus. Qhov thib ob potentiometer muaj qhov cuam tshuam me me ntawm cov teeb liab tso tawm qhov tsis ncaj ncees tus nqi.
Kuv teeb lub tswv yim ntawm kuv lub tshuab hluav taws xob teeb tsa kom tsawg kawg amplitude. Lub kaw lus muaj qhov nce ntawm -1. Qhov ntawd txhais tau tias lub teeb liab nkag tau rov qab.
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