Safety Precautions

When using a vernier Calliper, it is important to take the following safety precautions:

  • Always use a vernier Calliper that is in good condition.
  • Do not use a vernier Calliper to measure objects that are too large or too small for the instrument.
  • Do not use a vernier Calliper to measure objects that are sharp or pointed.
  • Do not use a vernier Calliper to measure objects that are hot or cold.
  • Store a vernier Calliper in a safe place when not in use.

Vernier Calliper

Vernier Calliper is a precision measuring instrument used to measure the internal and external dimensions of an object. It consists of two main parts: 

  • A Fixed Jaw
  • A Movable Jaw

The fixed jaw is used to measure the outside of an object, while the movable jaw is used to measure the inside of an object. This is a device that is used to measure very smaller values and it can measure the value in the range of 0.1 mm. 

In this article, we will learn about Vernier Calliper, its diagram, working, and others in detail.

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What Is Vernier Calliper?

A device that is used to measure very small distances is called the vernier Calliper this is a device that is used to measure distances accurate to 0.1 mm. This device was invented by the famous French mathematician Pierre Vernier in 1631 and hence its name is Vernier Scale. The vernier Calliper is shown in the image added below,...

Parts of a Vernier Calliper

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How to Use a Vernier Calliper

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Least Count of a Vernier Calliper

The least count of vernier Calliper is the smallest measurement that can be made with the instrument. It is calculated by dividing the smallest division on the main scale by the number of divisions on the vernier scale....

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We define zero error as the condition in which the measuring device registers a reading when there should not be any reading. There are two types of zero errors that are,...

Applications of Vernier Callipers

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Safety Precautions

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How to Read Vernier Calliper?

To ensure accurate measurements, begin by verifying the alignment of the main and vernier scales with nothing in between. When both scales read zero, zero error is eliminated. Introduce a ball between the vernier scale jaws, aligning the 0 mark on the vernier scale with the main scale to obtain the main scale reading. Identify the point on the vernier scale aligned with the main scale for the vernier scale reading. Note that readings often involve decimals, with the number before the decimal indicating the main scale reading and the number after the decimal representing the vernier scale reading....

Solved Examples on Vernier Callipers

Example 1: A Vernier Calliper with no zero error is used to measure the diameter of a cylinder. The zero of the Vernier scale is observed between 4.20 cm and 4.25 cm on the main scale. The Vernier scale consists of 50 divisions, which are equivalent to 2.45 cm. The 11th division on the Vernier scale coincides exactly with one of the divisions on the main scale. What is the diameter of the cylinder?...

FAQs on Vernier Callipers

Q1: What is a Vernier Calliper?...