Kuv nyiam tsim cov ntsiab lus pub dawb tag nrho cov lus qhia rau kuv cov nyeem, koj. Kuv tsis lees txais kev them nyiaj pab txhawb nqa, kuv lub tswv yim yog kuv tus kheej, tab sis yog tias koj pom kuv cov lus pom zoo pab tau thiab koj kawg yuav yam uas koj nyiam los ntawm ib qho ntawm kuv qhov txuas, Kuv tuaj yeem khwv tau nyiaj ua haujlwm yam tsis tau them nqi ntxiv rau koj. Xav paub ntau ntxiv
Ib qho oscilloscope ntsuas qhov voltage ntawm txhua qhov chaw thiab qhia txog qhov voltage vs. time graph ntawm lub vijtsam digital txuas rau nws. Daim duab no yog siv nyob rau hauv ntau qhov chaw ntawm hluav taws xob engineering thiab tshuaj. Vim yog qhov tseeb thiab pom kev sawv cev ntawm cov ntaub ntawv, oscilloscopes yog cov cuab yeej siv dav. Thaum xub thawj siab ib muag, nws yuav zoo li tsis muaj dab tsi tshwj xeeb tab sis nws tuaj yeem pab tau zoo rau kev nkag siab tias lub teeb liab coj li cas. Kev saib xyuas qhov kev hloov pauv tas mus li tuaj yeem pab koj nrhiav cov ntsiab lus mob uas tsis tuaj yeem pom yam tsis muaj daim duab nyob. Peb yuav qhia koj kom nyeem oscilloscope screen rau qee yam kev kho mob thiab engineering lub hom phiaj.
Hauv kab ntawv no peb yuav npog:
Kev siv ntawm Oscilloscope
Kev siv lub oscilloscope feem ntau pom rau lub hom phiaj tshawb fawb. Hauv kev tsim hluav taws xob, nws muab qhov pom tseeb thiab pom tseeb sawv cev ntawm cov haujlwm nyuaj. Sib nrug los ntawm cov hauv paus tseem ceeb, zaus, thiab qhov dav, lawv tuaj yeem siv los kawm rau txhua lub suab nrov ntawm cov kab hluav taws xob. Cov duab ntawm nthwv dej tuaj yeem pom ib yam nkaus. Hauv kev tshawb fawb txog kev kho mob, oscilloscopes tau siv los ua qhov kev ntsuas sib txawv ntawm lub plawv. Qhov hloov pauv tas li ntawm qhov hluav taws xob nrog lub sijhawm tau txhais rau qhov ntaus ntawm lub plawv. Saib ntawm daim duab ntawm oscilloscopes, cov kws kho mob tuaj yeem txiav cov ntaub ntawv tseem ceeb hais txog lub plawv.
Nyeem Oscilloscope Screen
Tom qab koj tau txuas cov kev soj ntsuam mus rau qhov ntsuas hluav taws xob thiab tswj kom tau txais cov lus tso tawm ntawm lub vijtsam, koj yuav tsum muaj peev xwm nyeem thiab nkag siab tias cov zis ntawd txhais li cas. Cov kab ntawv txhais tau ntau yam sib txawv rau kev tsim vaj tsev thiab tshuaj. Peb yuav pab koj nkag siab ob qho los ntawm kev teb qee cov lus nug uas tshwm sim.
Yuav ntsuas AC Voltage nrog Oscilloscope li cas?
Hloov chaw tam sim no lossis AC voltage hloov pauv cov lus qhia ntawm lub sijhawm. Yog li, daim duab tau los ntawm AC voltage yog sine wave. Peb ua tau xam qhov zaus, qhov dav, lub sijhawm, suab nrov, thiab lwm yam los ntawm kab ntawv.
Kauj Ruam 1: Nkag Siab Qhov Nplai
Muaj cov thawv me me ntawm lub vijtsam ntawm koj lub oscilloscope. Txhua ntawm cov xwm txheej no hu ua faib. Cov nplai, txawm li cas los xij, yog tus nqi uas koj muab rau ib tus neeg square, piv txwv li kev faib. Nyob ntawm seb koj ntsuas pes tsawg teev ntawm ob kab koj nyeem yuav txawv, tab sis lawv yuav txhais tib yam nkaus thaum kawg.
Kauj Ruam 2: Paub Vertical thiab Kab Rov Tav Tshooj
Hla txoj kab rov tav lossis X-axis, cov txiaj ntsig koj yuav tau txais qhia lub sijhawm. Thiab peb muaj qhov ntsuas hluav taws xob hla Y-axis. Muaj lub pob qhov rooj ntawm ntu ntu rau teeb tsa qhov hluav taws xob ib faib (volts/div) tus nqi. Muaj lub pob qhov rooj ntawm kab rov tav ib yam nkaus uas teev sijhawm sib faib (sijhawm/faib) tus nqi. Feem ntau, lub sijhawm tsis suav nrog hauv vib nas this. Milliseconds (ms) lossis microseconds muaj ntau dua vim tias qhov ntsuas qhov ntsuas hluav taws xob feem ntau tau nce mus txog kilohertz (kHz). Tus nqi hluav taws xob muaj nyob hauv volts (v) lossis millivolts.
Kauj Ruam 3: Dial Tus Kheej Qhov Chaw
Muaj ob lub pob qhov rooj ntxiv, ob qho tib si ntawm kab rov tav thiab kab ntsug ntawm oscilloscope, uas tso cai rau koj txav tag nrho cov duab/ daim duab ntawm lub teeb liab hla X thiab Y-axis. Qhov no tuaj yeem muaj txiaj ntsig zoo kom tau txais cov ntaub ntawv raug los ntawm lub vijtsam. Yog tias koj xav tau cov ntaub ntawv tseeb los ntawm kab ntawv, koj tuaj yeem txav lub teeb ib ncig thiab phim nws nrog qhov kawg ntawm kev faib ua plaub fab. Txoj kev no, koj tuaj yeem paub tseeb ntawm kev faib faib. Txawm li cas los xij, tsis txhob hnov qab txiav txim siab qis dua ntawm kab ntawv.
Kauj Ruam 4: Kev Ntsuas
Thaum koj tau teeb tsa cov pob qhov rooj rau lub xeev tsim nyog, koj tuaj yeem ua tau pib ntsuas. Qhov siab ntsug siab tshaj plaws uas daim duab yuav ncav cuag los ntawm qhov sib npaug yog hu ua qhov dav. Hais tias, koj tau teeb tsa qhov ntsuas ntawm Y-axis raws li 1volts ntawm kev faib. Yog tias koj daim duab nce mus txog 3 qhov me me ntawm cov xwm txheej sib npaug, tom qab ntawd nws qhov dav yog 3volts.
Vim Li Cas Cov Loj Loj Pom Ntawm Oscilloscope
Qee qhov pob qhov rooj ntawm kab ntsug thiab kab rov tav tuaj yeem raug hu los hloov qhov ntsuas ntawm kab kos. Los ntawm kev hloov qhov ntsuas, koj tau nthuav dav thiab tawm. Vim tias qhov ntsuas loj dua, hais tias, 5 chav nyob rau ib faib, yuav muaj cov nthwv dej loj dua ntawm lub oscilloscope.DC Offset ntawm Oscilloscope yog dab tsi?
Yog tias nthwv dej txhais tau tias qhov dav, yog xoom, nthwv dej tau tsim nyob rau hauv txoj hauv kev uas X-axis muaj qhov tseem ceeb ntawm xoom rau kev txiav txim (Y-axis qhov tseem ceeb). Txawm li cas los xij, qee qhov kev hloov pauv tau tsim dua saum X-axis lossis nqes X-axis. Tias yog vim lawv qhov kev txhais tau tias tsis yog xoom, tab sis nws ntau dua lossis tsawg dua xoom. Qhov xwm txheej no hu ua DC offset.
Vim Li Cas Cov Dej Loj Loj Pom Ntawm Oscilloscope Sawv Cev Ventricular Contraction
Thaum pom cov nthwv dej loj ntawm lub oscilloscope, nws sawv cev rau lub plawv tsis ua haujlwm. Cov nthwv dej loj dua vim tias kev ua haujlwm ntawm lub plawv ntawm lub plawv muaj zog dua li atria. Tias yog vim lub tshuab nqus dej tso ntshav tawm hauv plawv, mus rau tag nrho lub cev. Yog li, nws yuav tsum tau siv zog loj heev. Cov kws kho mob saib xyuas cov nthwv dej thiab kawm cov nthwv dej tsim ntawm lub oscilloscope kom nkag siab txog qhov mob ntawm lub plawv thiab atria thiab thaum kawg, lub plawv. Ib qho txawv txav lossis tus lej ntawm kev tsim nthwv dej qhia txog teeb meem hauv plawv uas cov kws kho mob tuaj yeem nyiam.
Txheeb Xyuas Cov Lus Qhia Ntxiv ntawm Screen
Cov oscilloscopes niaj hnub no qhia tsis tau tsuas yog cov duab tab sis lwm cov ntaub ntawv ib yam. Qhov feem ntau ntawm cov ntaub ntawv no yog qhov zaus. Txij li lub oscilloscope muab cov ntaub ntawv txheeb ze rau lub sijhawm tshwj xeeb, tus nqi zaus tuaj yeem hloov pauv ntawm lub sijhawm. Tus nqi pauv yog nyob ntawm qhov kev xeem. Tuam txhab uas muag ua zoo tshaj oscilloscopes yog tas li sim txhim kho cov neeg siv kev paub nrog lawv cov cuab yeej thiab thawb ciam teb. Nrog lub hom phiaj no hauv siab, lawv tau tso ntau qhov chaw ntxiv rau lub cuab yeej. Cov kev xaiv khaws cov duab, khiav qee yam ntau thiab ntau dua, khov lub teeb, thiab lwm yam yog qee yam uas nws cov ntaub ntawv koj yuav pom ntawm lub vijtsam. Ua tus pib, muaj peev xwm nyeem thiab sau cov ntaub ntawv los ntawm kab ntawv yog txhua yam koj xav tau. Koj tsis tas yuav nkag siab lawv txhua tus thaum xub thawj. Thaum koj tau txais kev yooj yim nrog nws, pib tshawb nrhiav cov nyees khawm thiab pom dab tsi hloov pauv ntawm qhov screen.xaus
Lub oscilloscope yog ib qho cuab yeej tseem ceeb ob qho hauv kev tshawb fawb txog kev kho mob thiab hluav taws xob engineering. Yog tias koj muaj cov qauv qub ntawm oscilloscopes, peb pom zoo kom koj pib nrog nws ua ntej. Nws yuav yooj yim dua thiab tsis nkag siab rau koj yog tias koj pib nrog qee yam yooj yim.
Kuv yog Joost Nusselder, tus tsim ntawm Tools Doctor, cov ntsiab lus lag luam, thiab txiv. Kuv nyiam sim cov cuab yeej tshiab, thiab ua ke nrog kuv pab neeg kuv tau tsim cov ntawv blog tob txij li xyoo 2016 los pab cov neeg nyeem siab ncaj nrog cov cuab yeej & cov lus qhia ua khoom siv.
