Multimeter Pulse Signal Measurement Cov kauj ruam
Yog hais tias nws yog ib qho yooj yim nrhiav tau ntawm lub xub ntiag los yog tsis muaj mem tes signals, los yog tsuas yog ib tug empirical tus nqi thiab ib tug imprecise tus nqi, nws muaj peev xwm ua tiav siv ntau zaus ntawm ib tug multimeter.
Pulse signals yog qhov pib zoo ib yam li kev hloov pauv tam sim no, uas yog qhov zoo thiab qhov tsis zoo ntawm kev sib pauv hloov pauv, kho cov cim pulse zoo, thiab cov cim tsis zoo. Ib qho siv AC iav ntsuas thiab lwm qhov siv DC iav ntsuas. Qhov ntsuas ntsuas tsis raug. Ib lub meter zoo dua tuaj yeem muaj ntau lub zog Hz, tab sis nws tseem tsis tuaj yeem ntsuas lub teeb liab voltage rau me me mem tes signals.
Lub multimeter digital tsis tuaj yeem ntsuas qhov voltage ntawm cov cim mem tes, yog li xav tau ib qho oscilloscope lossis cov cuab yeej tshwj xeeb.
Cov ntsuas hluav taws xob tso siab rau kev ntsuas, thiab lub sijhawm ua piv txwv zoo li yuav txawv ntawm qhov txiaj ntsig zoo tshaj plaws ntawm cov mem tes ntsuas. Tshwj tsis yog tias koj tuaj yeem kho qhov piv txwv zaus ntawm cov ntsuas ntsuas digital kom zoo ib yam li cov mem tes zaus koj tab tom sim, ntawm qhov taw tes koj lub taub hau meter yuav tso saib tus nqi ruaj khov, uas yog cov mem tes voltage. Tom ntej no, ua raws li tus editor kom paub meej tias oscilloscopes ntsuas pulse signals.
Yuav Ntsuas Pulse Signal li cas (Step Tutorial)
Siv cov txheej txheem ntsuas pulse dav (zoo) ntawm 1pps mem tes teeb liab nrog oscilloscope ua piv txwv, cov kauj ruam dav dav yog raws li hauv qab no: xaiv ntsuas channel 1, txuas lub 1pps mem tes teeb liab, teeb tsis xws li impedance, trigger theem, Analog amplitude (verttical axis), thiab kab rov tav kev daws teeb meem (piv txwv li lub sij hawm) thiab kab rov tav. ntawm 1pps mem tes teeb liab los ntawm QuickMeans.
1. Qhib lub oscilloscope, txuas lub 1pps mem tes teeb liab cable rau kev ntsuas channel 1, teeb lub oval khawm ntawm kev ntsuas channel 1, nyem AutoScale, thiab tom qab ntawd teeb tsa cov kev ntsuas xws li impedance, trigger theem, Analog ntsug axis amplitude, thiab kab rov tav kab rov tav axis lub sij hawm daws teeb meem.
2. Nias lub khawm thib ob nyob rau hauv qab ntawm qhov screen kom teem lub impedance rau 50 Ω.
3. Teem lub trigger theem mus rau 700mV siv lub pob qhov Level hauv thaj tsam Trigger.
4. Teem lub ntsug axis amplitude rau 1v los ntawm thawj pob qhov rooj hauv thaj tsam Analog.
5. Teem lub sij hawm kab rov tav axis daws teeb meem rau 10us siv thawj lub pob qhov rooj nyob rau hauv cheeb tsam kab rov tav, thiab saib lub vijtsam zaub raws li lub voj voog square.
6. Nyem rau ntawm QuickMeas, xaiv 'Positive Pulse Width', thiab nyeem qhov ntsuas tus nqi (tus nqi nruab nrab) raws li qhia hauv daim duab hauv qab no. Qhov zoo pulse dav ntsuas tus nqi (tus nqi nruab nrab) ntawm 1pps mem tes teeb liab yog 20.140us.
Kev ntsuas ntsuas ceev faj
1. Ntsuas qhov tso zis impedance ntawm 10MHz zaus teeb liab, nrog rau cov teeb liab impedance 50 Ω / 1M Ω, trigger theem 0v, thiab analog ntsug axis amplitude 1V.
2. Ntsuas qhov zoo mem tes dav ntawm 1pps mem tes teeb liab, nrog rau qhov tsis muaj teeb meem: impedance 50 Ω, trigger theem 700mV, Analog ntsug axis amplitude 1V, Kab rov tav kab rov tav axis lub sij hawm daws teeb meem 10us.
3. Ntsuas lub sij hawm ntawm 1pps mem tes teeb liab, nrog rau qhov tsis muaj teeb meem: impedance 50 Ω, trigger theem 700mV, Analog ntsug axis amplitude 1V, Kab rov tav kab rov tav axis lub sij hawm daws teeb meem 1s.
