Taw qhia rau digital multimeter terminology
Qhov tseeb
Indicates the difference between the DMM's measured value and the actual value. Expressed as a percentage of reading or as a percentage of full scale.
Analog Meter:
Ib qho cuab yeej siv ib qho analog pointer los qhia qhov ntsuas ntsuas. Tus neeg siv txiav txim qhov kev nyeem ntawv los ntawm txoj hauj lwm ntawm tus pointer nyob rau hauv lub stroke.
Annunciator:
Siv los qhia tias qhov kev xaiv ntau lossis kev ua haujlwm tsis raug.
Qhov nruab nrab teb DMM:
Sine nthwv dej tuaj yeem ntsuas qhov tseeb, tab sis tsis txaus thaum ntsuas tsis yog -sine waves.
Lo lus (Count):
Tus lej kawg ntawm digital multimeter feem ntau yog siv ua ke nrog cov feem pua los qhia qhov tseeb ntawm digital multimeter.
Tam sim no -shunt:
The DMM has a low value resistor for measuring current. The digital multimeter measures the voltage across it and uses Ohm's law to calculate the current value.
Digital Multimeter (DMM): Qhia tus nqi ntawm cov teeb liab ntsuas hauv daim ntawv digital. Tus yam ntxwv ntawm lub moos digital yog qhov tseeb, kev daws teeb meem, kev ntseeg siab thiab lwm yam ntsuas tau siab dua li ntawm cov saib analog.
Tsis yog -sinusoidal waveform:
Waveforms xws li mem tes tsheb ciav hlau, square, daim duab peb sab, sawtooth, ncov, thiab lwm yam.
Kev daws teeb meem:
Qhov kev hloov me me uas tuaj yeem pom hauv qhov ntsuas.
Tus nqi zoo (RMS):
Ib qho kev ntsuas ntawm AC teeb liab uas sib npaug rau DC teeb liab.
Standard sine waveform (Sinusoidal waveform):
Lub teeb liab uas sib txawv sinusoidally yam tsis muaj distortion.
True RMS Digital Multimeter (True-rms):
Digital multimeter uas tuaj yeem ntsuas qhov tseeb rms tus nqi ntawm sine thiab tsis yog -sine waves.
