Vernier Callipers

Q1: What is a Vernier Calliper?

A vernier Calliper is a measuring instrument used to measure the dimensions of an object with high precision. It consists of a main scale and a sliding vernier scale, which allows for more accurate measurements than a regular ruler.

Q2: How does a Vernier Calliper Work?

A vernier Calliper works on the principle of Vernier scale, which provides finer measurement readings. The main scale measures whole units, while the vernier scale slides along the main scale and provides additional fractional readings.

Q3: What are Parts of a Vernier Calliper?

A vernier Calliper consists of several parts: the main scale, vernier scale, jaws for measuring outer dimensions, and depth gauge for measuring depths. It also includes a locking screw to hold measurements in place.

Q4: How to Read Measurements on a Vernier Calliper?

To read measurements on a vernier Calliper, align the object between the jaws and read the main scale reading at the zero mark of the vernier scale. Then, identify the graduation line on the vernier scale that perfectly aligns with a graduation line on the main scale. The value indicated by the aligned lines on the vernier scale represents the fractional part of the measurement.

Q5: What are Applications of Vernier Callipers?

Vernier Callipers are used in various fields, including engineering, manufacturing, and science, where precise measurements are required. They are commonly used for measuring dimensions of objects, thickness, inner and outer diameters, as well as depth measurements.

Q6: How Accurate are Vernier Callipers?

Vernier Callipers are known for their high accuracy. Depending on the quality and design, vernier Callipers can typically measure to the nearest 0.02 mm or even finer.

Q7: What is the function of the vernier calliper?

Vernier calipers accurately measure internal and external dimensions with a minimal reading error of 0.05mm (0.0019 inches), making them superior to flat devices like rulers.



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,...

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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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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?...