Advantages of Rectifier Instruments

       The various advantages of rectifier instruments are,

1- Compared to other a.c. instruments can be used for the frequency range extending from 20 Hz to high audio frequencies (20 kHz).

2- Have much lower operating current for voltmeters.

3- Have very low power consumption.

4- Practically have uniform scale for all ranges.

5- The accuracy is high about ±5% under normal operating conditions.

6- The sensitivity is very high.