Question

Being a technical person explain which instrument is used to measuring voltage, current, resistance, testing transistors, capacitors and for checking continuity of wires and fuses. Explain the identified instrument with working principle, operation and types with neat diagram

Answer 1

Digital multimeter(multimeter) is a instrument used for the measuring the voltage, current, resistance, testing transistor, capacitors and for checking continuity of wires and fuses

Working principle of Digital multimeter with neat diagram

In the multimeter the input signals like ac ,dc voltage, resistance or any other terms is converted into the dc voltage within the range of Analog digital converter

It then converts into the pre scaled dc voltage into digital numbers

It will display on display unit

And digital controller block will be implemented within a microcontroller

It will manage flow of data

Manage functions like transferring information to external devices

The main operation of digital multimeter is testing

Where it test the device for measurements like resistance, voltage , current and etc

Actually multimeters are two types

1) digital multimeter

2)analog multimeter

Where digital multimeter has three types

Clamp multimeter

It deals with flow of electricity

Fluke multimeter

It is used to measure electrical voltage, resistance and few more

Autoranging multimeter

It is used to automatically change the internal range of resistors ,voltage and etc to find correctness