Cov lus nug nquag nug Multimeter
Dab tsi yog qhov txawv ntawm Qhov Nruab Nrab Teb Multimeter thiab Qhov Tseeb RMS Multimeter?
Qhov nruab nrab cov lus teb multimeter ntsuas AC cov cim los ntawm kev sib npaug ntawm tus nqi nruab nrab los ntawm qhov ntsuas waveform calibrated rau RMS tus nqi, thaum qhov tseeb RMS algorithm rau ntsuas AC signals yog lub hauv paus-txhais-square algorithm, uas yog qhov tseeb rau cov ntshiab sinusoidal waveforms, tsis hais. Txawm hais tias nws yog qhov tseeb RMS lossis qhov ntsuas qhov nruab nrab, tab sis rau qhov tsis sib haum xeeb waveforms lossis cov tsis-sinusoidal waveforms xws li square, triangular, lossis jagged waveforms, tsuas yog RMS meter tiag tiag tuaj yeem ntsuas lawv.
Dab tsi yog qhov low pass filter?
Lub lim dej qis yog ib lub voj voog uas tso cai rau cov teeb liab tsawg zaus dhau los thiab ua rau cov teeb liab siab. Lub built-in low-pass lim cuam tshuam cov teeb liab siab dua 1 KHz thiab attenuates cov teeb liab qis dua 1 KHz thiab siab dua 100 Hz, tso cai rau kev ntsuas cov cim tseem ceeb ntawm lub zaus hloov pauv lossis lwm yam inverter.
Dab tsi yog AC bandwidth ntawm multimeter?
Bandwidth yog qhov ntau ntawm AC zaus uas lub digital multimeter tuaj yeem ntsuas nyob rau hauv qhov tseeb paradigm. Nws tsis yog kev ua haujlwm ntawm kev ntsuas zaus, tab sis qhia txog lub peev xwm ntawm AC zaus teb. Yog hais tias qhov zaus tshaj AC bandwidth ntawm lub multimeter, lub multimeter yuav tsis tuaj yeem ntsuas tus nqi AC kom raug nyob rau hauv cov lus teb ntau zaus. Yog li, qhov dav AC bandwidth ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm siab digital multimeter.
Yuav ua li cas ib tug multimeter tshem tawm cov nyhuv ntawm kab kuj nrog lub REL muaj nuj nqi?
Thaum peb siv lub multimeter los ntsuas qhov kev tiv thaiv, ib khub ntawm cov xov hlau ntsuas yuav ua rau muaj qee qhov kev tiv thaiv kab, thiab ntsuas kom raug, peb yuav tsum sim cov kab tsis kam ua ntej thiab tom qab ntawv rho tawm tom qab qhov kev xeem tiav. Qhov tseeb, REL muaj nuj nqi hauv multimeter tuaj yeem pab peb tshem tawm cov kev cuam tshuam ntawm kab tsis kam, tom qab lub luag haujlwm qhib, nws yuav cia li sau tus nqi no thiab tso saib xoom, thiab tib lub sijhawm, nws yuav txiav tawm tus nqi no. nyob rau hauv ib qho kev ntsuas, thiaj li yuav tau txais ib tug tiag tiag tus nqi kuj.
Vim li cas kuv lub multimeter tsis tuaj yeem rov qab mus rau xoom thaum nws tig mus rau millivolt?
Qhov no yog vim hais tias cov multimeters muaj lub siab input impedance, feem ntau saum toj no theem megohm, thiab muaj peev xwm tsav tau qhov voltage. Nyob rau hauv cov ntaub ntawv ntawm ib tug qhib-circuit meter, nyob rau hauv me me voltage theem xws li DC millivolt theem mVDC, AC millivolt theem mVAC, lub induced voltage generated los ntawm lub electromagnetic yoj ntawm ib puag ncig ib puag ncig yuav nrhiav tau yooj yim los ntawm lub multimeter, thiab cov zaub yuav tsis yog xoom, uas yog qhov qub. Yog hais tias lub multimeter stick luv luv los tsim ib lub voj voog, qhov kev nyeem ntawv multimeter yuav maj mam mus rau xoom.
