Error analysis of measuring positive dizzying AC voltage with multimeter distortionWhen the effective value of distorted sinusoidal voltage with harmonic component is measured by multimeter (AC voltage range is mean meter), the measurement error depends not only on the amplitude of each harmonic, bu

Analysis of measuring Non-sinusoidal AC Voltage by MultimeterThe rectifier instrument composed of the magnetoelectric system measuring mechanism of the multimeter and the rectifying circuit indicates the average value of the AC voltage. In engineering technology, it is usually necessary to measure t

Range selection and Measurement error of Resistance FilesWhen measuring the same resistance with a multimeter, the error of different measuring range is different, and the error of measurement is very different. When selecting the gear range, the measured resistance should be placed in the center of

Voltage and current range selection and measurement error of multimeter The accuracy grades of multimeter are generally 0.1, 0.5, 1.5, 2.5, 5, etc. The calibration of accuracy level of DC voltage, current, AC voltage and current is expressed by the percentage of the maximum absolute allowable error