Yuav ua li cas yuav ua rau ib tug oscilloscope los ntawm koj lub computer?

Oscilloscope yog ib qhov tseem ceeb seev, zoo li tej hluav taws xob muaj daim ntaub ntawv kuaj thiab pa xov tooj cua rhiav. Nrog xws li ib tug ntaus ntawv nws yog ua tau los mus txiav txim lub tsis ua hauj lwm ntawm hluav taws xob circuits, thiab tseem mus debug lawv ua hauj lwm nyob rau hauv lub tsim ntawm tshiab kiag li lawm. Txawm li cas los, tus nqi ntawm xws li yog heev siab heev, thiab tsis yog txhua tus lub xov tooj cua amateur yuav them taus los yuav xws li ib tug me ntsis tshaj plaws. Qhov tsab xov xwm tseem ua hauj lwm nrog cov nqe lus nug ntawm yuav ua li cas ua lub oscilloscope los ntawm koj lub computer. Muaj ntau ntau txoj kev raug xws li ib tug ntaus ntawv, tab sis lub hauv paus yog qhov txhia chaw: raws li ib tug board uas yuav txais impulses yog ib tug PC suab card, thiab ib tug tshwj xeeb adapter txuas mus rau nws. Nws ua hauj lwm pab raws lub theem ntawm lub ntsuas lub teeb liab thiab lub tswv yim suab card ntawm lub computer.

Oscilloscope rau ib tug computer: software

Ib tug ntawm lub ntsiab ntsiab ntawm tus dais no yog lub software uas yuav kav lub monitor mem tes ntsuas. Muaj ib tug lossis loj ntau yam ntawm tej software, tab sis tsis yog txhua txhua hlauv taws xob yog ruaj khov. Tshwj xeeb tshaj yog nrov nrog amateur xov tooj cua siv software-oscilloscope Osci, los ntawm cov khoom siv AudioTester. Nws muaj ib tug interface uas zoo nkaus li zoo li ib tug txheej txheem analog ntaus ntawv, cov kev tshuaj ntsuam yog ib daim phiaj uas tso cai rau los mus ntsuas qhov ntev thiab amplitude ntawm lub teeb liab. Nws yog yooj yim siv, thiab muaj ib tug xov tooj ntawm ntxiv nta tsis pom nyob rau hauv cov kev pab cuam ntawm no hom. Tab sis txhua txhua lub xov tooj cua amateur yuav tsum tau xaiv los khiav lub software, uas nws nyiam.

kev cov ntaub ntawv

Yog li ntawd, nyob rau hauv thiaj li yuav ua lub oscilloscope los ntawm koj lub computer, koj yuav tsum sau ib tug tshwj xeeb attenuator (voltage divider), uas yuav tsum tau npog li dav ib tug ntau ntawm cov measured voltage. Qhov thib ob muaj nuj nqi ntawm lub adapter - yog kev tiv thaiv lub tswv yim chaw nres nkoj lub suab card los ntawm kev puas tsuaj uas yuav ua rau high voltage theem. Feem ntau cov suab phaib tswv yim voltage yog tas rau 1-2 volts. Oscilloscope los ntawm koj lub computer muaj ib tug ntau zaus ntawm kev tsis taus suab card. Rau nqi phaib nws yog los ntawm 0.1Hz rau 20kHz (sinusoidal teeb liab). Lub sab voltage txwv, uas tej zaum yuav ntsuas yog muaj raws qhov keeb kwm yav dhau theem thiab suab nrov thiab yog 1 MV, thiab lub Upper - txwv adapter tsis thiab yuav ua tau ob peb puas volts.

Apparatus voltage divider

Oscilloscope los ntawm lub computer muaj ib tug heev yooj yim circuitry. Nws muaj tsuas yog ob tug zener diode thiab peb resistors. Denomination resistors nyob rau hauv lub virtual oscilloscope scale. Qhov no divider rau peb sib txawv scales, nrog ratios ntawm 1: 1, 1:20 thiab 1: 100. Raws li, tus ntaus ntawv yuav muaj peb inputs, txhua tus uas yog kev cob cog rua ib tug resistor. Nyob impedance ncaj tswv yim resistor of 1 Mohm. Common neeg xyuas pib yog kev cob cog rua ntawm qhov rov qab kev twb kev txuas ntawm ob Zener diodes. Lawv yog tsim los tiv thaiv cov kab-nyob rau hauv suab card overvoltage, thaum tus tes hloov qhov yog nyob rau hauv lub "ncaj tswv yim" txoj hauj lwm. Lub resistors yuav kev cob cog rua thaum uas tig mus rau lub capacitors, lawv yuav pluav lub amplitude zaus tivthaiv ntawm tus dais.

xaus

Qhov no oscilloscope computer tsis yog ib tug sleek, tsis tau yooj yim Circuit Court tsim yuav cia ib tug ntau ntawm cov ntsuas voltage. Hais tias ntaus ntawv yuav pab nyob rau hauv lub kho suab, los yog muaj peev xwm siv tau raws li ib txoj kev tshawb measuring dais.