DC Voltmeter and AC Voltmeter || Electronic Measurements and Instrumentation

Subject: Electronic Measurements and Instrumentation
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The DC voltmeter measures only DC voltages. If we want to use it for measuring AC voltages, then we have to follow these two steps.
Step1 − Convert the AC voltage signal into a DC voltage signal by using a rectifier.
Step2 − Measure the DC or average value of the rectifier’s output signal.
We get Rectifier based AC voltmeter, just by including the rectifier circuit to the basic DC voltmeter.

Following are the two types of rectifier based AC voltmeters.
1.AC voltmeter using Half Wave Rectifier
2.AC voltmeter using Full Wave Rectifier
----------------------------------------------------------------------------------------------------------------------------------------------------Subject : Electronic Measurements and Instrumentation(EMI)
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