Disadvantages of Digital Voltmeter
There are certain limitations of digital voltmeter like:
- They are comparatively fragile than Analog voltmeters and need to be handled with care. They can get heated up on prolonged use and give wrong readings in that case.
- The speed of digital voltmeters is dependent on digitizing circuit being used .This might reduce the operational speed of the voltmeters making them slow.
- There is a certain threshold value associated with digital voltmeter and exceeding that value can damage the voltmeter without any prior warnings.
- In case of fluctuations in the output, digital voltmeter fails to detect them and can even give wrong readings in that case giving wrong output.
- Due to the designing of digital voltmeter in a certain way, it becomes almost impossible to measure transient voltage using this device. Hence measuring transient spikes through this meter is a difficult process.
Working Principle of Digital Voltmeter
A voltmeter is a significant device used in electronics engineering for measuring potential developed across various devices. Depending on the requirements these voltmeters can be designed into two types that being digital and analog. In this article, we will briefly discuss the two types of voltmeters. Later we will study about digital voltmeter and the working principle behind it. We will also see the block diagram of a digital voltmeter and how it works. The digital voltmeter can further be divided into certain types and we will discuss them too. This description will include talking about their specifications as well. After the discussion, we will talk about the advantages and disadvantages of digital voltmeters which are considered while using digital voltmeters in some real-life appliances. This will conclude the article with some Frequently Asked Questions for user reference.
Table of Content
- Digital Voltmeter
- Working Principle
- Block Diagram
- Types
- Advantages
- Disadvantages
- Applications