Voltmeters and Multimeters

Solid State Voltmeter

Solid State Voltmeter

Solid State Voltmeter: Solid State Voltmeter – Figure 4.13 shows the circuit of an electronic voltmeter using an IC OpAmp 741C. This is a directly coupled very high gain amplifier. The gain of the OpAmp can be adjusted to any suitable lower value by providing appropriate resistance between its output terminal, Pin No. 6, and […]

Solid State Voltmeter Read More »

Transistor Voltmeter (TVM)

Transistor Voltmeter (TVM): Transistor Voltmeter – Direct coupled amplifiers are economical and hence used widely in general purpose low priced VTVM’ s. Figure 4.9 gives a simplified schematic diagram of a dc coupled amplifier with an indicating meter. The dc input is applied to a range attenuator to provide input voltage levels which can be

Transistor Voltmeter (TVM) Read More »

DC Meter

DC Meter: The most commonly used dc meter is based on the fundamental principle of the motor. The motor action is produced by the flow of a small amount of current through a moving coil which is positioned in a permanent magnetic field. This basic moving system, often called the D’Arsonval movement, is also referred

DC Meter Read More »

Scroll to Top