Basic Terminology thiab txhais ntawm Multimeters
Qhov tseeb
Qhia qhov sib txawv ntawm qhov ntsuas tus nqi ntawm ib qho digital multimeter thiab tus nqi tseeb. Nws yog qhia raws li feem pua ntawm kev nyeem ntawv lossis ib feem pua ntawm tag nrho cov nplai.
Analog Meter
Ib qho cuab yeej uas qhia cov txiaj ntsig ntsuas los ntawm kev siv lub tshuab ntsuas ntsuas. Tus neeg siv nyeem qhov ntsuas raws li qhov taw qhia ntawm qhov ntsuas.
Annunciator
Siv los qhia txog qhov kev xaiv ntau yam lossis kev ua haujlwm yuam kev.
Qhov Nruab Nrab- Teb Digital Multimeter
Muaj peev xwm ntsuas qhov tseeb rau sinusoidal waveforms, tab sis tsis muaj qhov tseeb txaus thaum ntsuas cov cim tsis yog sinusoidal.
Suav
Tus lej tseem ceeb tshaj plaws ntawm digital multimeter. Nws yog feem ntau siv ua ke nrog qhov feem pua qhov tseem ceeb txhawm rau txheeb xyuas qhov ntsuas qhov tseeb.
Tam sim no Shunt
Tus nqi qis qis hauv ib qho digital multimeter mob siab rau kev ntsuas tam sim no. Lub 'meter' ntsuas qhov hluav taws xob poob hla lub resistor thiab xam qhov tam sim no siv Ohm txoj cai.
DMM (Digital Multimeter)
Qhia ntsuas cov cim hauv daim ntawv digital. Digital multimeters muaj qhov tseeb dua, kev daws teeb meem thiab kev ntseeg tau piv nrog cov ntsuas analog.
Tsis-Sinusoidal Waveform
Waveforms xws li cov tsheb ciav hlau mem tes, square waves, triangular waves, sawtooth nthwv dej thiab peaked nthwv dej.
Kev daws teeb meem
Qhov kev hloov pauv me tshaj plaws uas tuaj yeem pom thaum ntsuas.
RMS (Root Mean Square)
Lub teeb liab AC qhov sib npaug sib npaug rau tus nqi ntawm DC teeb liab ua rau tib lub thermal nyhuv.
Sinusoidal Waveform
Lub teeb liab undistorted sib txawv nruj raws li txoj cai sine.
True-RMS Digital Multimeter
Ib qho digital multimeter uas tuaj yeem ntsuas qhov RMS tus nqi ntawm ob qho tib si sinusoidal thiab non-sinusoidal waveforms.
