Dab tsi yog hom kev ua haujlwm ntawm oscilloscope?
Oscilloscope "trigger" yog ua kom lub oscilloscope scanning thiab pom cov teeb liab synchronous, thiaj li ua kom pom qhov ruaj khov waveform. Txhawm rau ua kom tau raws li qhov xav tau kev soj ntsuam sib txawv, qhov sib txawv "trigger modes" yuav tsum tau ua. Muaj peb hom kev ua haujlwm yooj yim rau oscilloscopes:
Thawj yog qhov "automatic hom (AUTO)", nyob rau hauv hom no, thaum qhov tshwm sim tsis tshwm sim, oscilloscope scanning system yuav cia li luam theej duab raws li cov txheej txheem scanning; thiab thaum qhov tshwm sim tshwm sim, lub tshuab scanning yuav sim luam theej duab raws li qhov zaus ntawm lub teeb liab, yog li hauv hom no, tsis hais seb puas muaj cov xwm txheej tshwm sim, oscilloscope yuav tsim ib qho scan. Yog li ntawd, nyob rau hauv hom no, tsis muaj teeb meem txawm hais tias qhov tshwm sim tshwm sim los yog tsis tau, oscilloscope yuav tsim ib qho scan, thiab koj tuaj yeem pom cov kab scanning ntawm lub vijtsam nrog cov kev hloov pauv, uas yog cov yam ntxwv ntawm hom no.
Qhov thib ob yog "Normal Mode / Regular Mode (NORM)", hom no txawv ntawm hom tsis siv neeg, nyob rau hauv hom no oscilloscope yuav scan tsuas yog thaum cov xwm txheej tshwm sim, thiab yog tias tsis muaj qhov tshwm sim, yuav tsis muaj scanning. . Yog li, yog tias tsis muaj qhov tshwm sim hauv hom no, rau analogue oscilloscopes yuav tsis pom kab scan, tsis muaj dab tsi ntawm qhov screen, rau cov oscilloscopes digital yuav tsis pom waveform hloov tshiab, tsis nkag siab qhov no feem ntau yuav xav tias lub teeb liab tsis yog. txuas lossis lwm yam txhaum.
Qhov thib peb yog "ib hom (SINGLE)", hom no thiab "hom qub" yog qhov zoo sib xws, uas yog, tsuas yog thaum cov xwm txheej tshwm sim los tsim kev luam theej duab, txwv tsis pub luam theej duab. Qhov txawv yog tias qhov kev tshuaj ntsuam no, tab sis tsim thiab ua tiav, oscilloscope scanning system yog nkag mus rau hauv lub xeev so, txawm tias rov qab los ua kom tau raws li qhov tshwm sim ntawm lub teeb liab tsis tau luam tawm lawm, uas yog, ua rau ib qho scanning ib zaug, uas yog, ib zaug, koj yuav tsum manually restart lub scanning system nyob rau hauv thiaj li yuav tsim lub tom ntej no trigger. Pom tseeb, rau cov analogue oscilloscopes zoo tib yam hauv hom no koj yuav pom tias tsis muaj dab tsi tuaj yeem pom, vim tias lub waveform flashes, oscilloscope tsis tuaj yeem khaws cia, feem ntau lub sijhawm hom no tsis muaj txiaj ntsig. Cov qauv saum toj no peb hom yog muab los ntawm feem ntau oscilloscopes.
