Yuav siv li cas oscilloscope?
(1) Tau txais lub hauv paus:
Thaum tus neeg teb xov tooj siv lub oscilloscope yam tsis muaj phau ntawv qhia, nws yuav tsum xub tau txais cov kab rov tav uas nyias nyias ua ntej siv qhov kev sojntsuam los ua lwm yam kev ntsuas. Txoj kev tshwj xeeb yog raws li nram no:
① Preset keyboards thiab pob qhov rooj ntawm lub vaj huam sib luag. Brightness yog teem rau nruab nrab, tsom thiab pab tsom xam yog teem rau nruab nrab, ntsug input coupling yog teem rau "AC", ntsug voltage ntau yam xaiv yog teem rau "5 mv / div", ntsug ua hauj lwm hom xaiv yog teem rau "CH1", ntsug rhiab heev fine-tuning calibration txoj hauj lwm yog teem rau "CAL", ntsug Cov channel synchronization qhov chaw xaiv yog teem rau nruab nrab txoj hauj lwm, txoj hauj lwm ntsug yog teem rau nruab nrab txoj hauj lwm, lub sij hawm A thiab B scan sij hawm yog preset ua ke ntawm "{ {3}}.5 ms/div", A scan time fine adjustment is set to the calibration position "CAL", txoj hauj lwm kab rov tav yog teem rau nruab nrab txoj hauj lwm, thiab lub scanning lub sij hawm teem hom rau "A", lub trigger synchronization hom rau "AUTO", txoj kab nqes mus rau "+", qhov sib txuas txuas mus rau "AC", thiab qhov kev xaiv qhov kev xaiv rau "INT".
② Nias lub hwj chim hloov thiab lub hwj chim qhia lub teeb yuav taws.
③ Kho cov pob khawm tswj uas cuam tshuam nrog Lub ci ntsa iab, ua kom pom tseeb, thiab lwm yam, thiab lub hauv paus sib luag thiab ci ci yuav tshwm sim. Kho lub hauv paus kom nws txoj hauj lwm nyob rau hauv nruab nrab ntawm qhov screen thiab yeej coincides nrog rau kab rov tav coordinate scale.
④ Kho qhov kev tswj hwm kev sib luag kom ua kom lub hauv paus sib npaug mus rau kab rov tav kev tswj hwm.
(2) Zaub teeb liab:
Raws li ib txwm muaj, oscilloscope nws tus kheej muaj 0.5 Vp-p tus qauv square yoj teeb liab tawm qhov chaw nres nkoj. Tom qab tau txais lub hauv paus, qhov kev sojntsuam tuaj yeem txuas rau ntawm no. Nyob rau lub sijhawm no, yuav tsum muaj cov xwm txheej square nthwv dej ntawm lub vijtsam. Kho qhov voltage ntau thiab scan sij hawm. Factor knob, lub amplitude thiab dav ntawm lub square nthwv dej yuav tsum hloov. Lub sijhawm no, nws txhais tau hais tias oscilloscope tau hloov kho thiab tuaj yeem muab tso rau hauv kev siv.
(3) Ntsuas teeb liab:
Txuas cov kev xeem coj mus rau CH1 lossis CH2 lub qhov (socket), kov qhov ntsuas qhov ntsuas mus rau qhov ntsuas qhov ntsuas, thiab tom qab ntawd soj ntsuam cov waveform ntawm oscilloscope. Yog hais tias lub waveform amplitude loj dhau los yog me me, kho qhov voltage ntau qhov pob qhov rooj; Yog hais tias lub sij hawm waveform zaub tsis haum, kho lub scan ceev knob.
Kev ntsuas tshwj xeeb:
(1) AC siab tshaj voltage ntsuas:
① Tau txais lub hauv paus.
② Kho lub V / div pob qhov rooj kom lub waveform qhia 5div (piv txwv li 5 daim phiaj) nyob rau hauv txoj kab ntsug.
③ Kho "Ib theem pib" kom tau txais cov zaub ruaj khov.
④ Siv cov qauv hauv qab no los xam cov hluav taws xob siab tshaj plaws. Peak voltage {{0}} ntsug deflection amplitude × hloov thaiv × ntes attenuation magnification. Piv txwv li: qhov ntsuas deflection ntawm lub ncov qaum teb mus rau lub ncov qis yog 5.6 degrees, lub VOLTS / dir hloov mus rau 0.5, siv lub × 10 sojntsuam attenuation magnification, thiab hloov cov ntaub ntawv mus rau hauv: Vp— p=5.6 × 0.5 × 10=28 V.
(2) Kev ntsuas lub sij hawm nce:
Nce lub sij hawm=kab rov tav nrug (degree) × lub sij hawm/degree (stop ncej)/expansion coefficient.
Piv txwv li: qhov kev ncua deb ntawm ob lub ntsiab lus ntawm lub waveform yog 5 degrees, lub sij hawm / degree kauj ruam yog 1Us, thiab × 10 expansion (qhov kawg expansion yog × 1), hloov tus nqi muab: lub sij hawm sawv yog 5 × 1 / { {6}}.5 Us.
(3) Phase sib txawv ntsuas:
Phase sib txawv=kab rov tav sib txawv (degree) × kab rov tav calibration tus nqi (degree/degree).
Piv txwv li: qhov sib txawv kab rov tav yog {{0}}.6 degree, thiab txhua qib yog ntsuas rau 45 degree . Hloov tus nqi muab rau hauv theem sib txawv qauv yog: 0.6 × 45=27 degree .
