What are vernier calipers and how it is used for measurement?

Understand the parts of the Vernier caliper. A Vernier caliper has main jaws that are used for measuring external diameter , as well as smaller jaws that are used for measuring the internal diameter of objects. Some models also have a depth gauge.

What are the parts of vernier caliper and their functions?

Lower Jaws: The upper jaws are the most prominent feature of a vernier caliper.

Upper Jaws: The upper jaws are smaller in size and are attached to the upper portion of the vernier caliper.

Depth Rod: The depth rod is another useful feature of the vernier caliper which can be used to measure the depths of holes or steps.

What is a vernier caliper and how does it work?

Vernier calipers work like slide caliper. Vernier calipers are used for more accurate measuring than can be achieved with a measuring rule or a slide caliper. It is capable of measuring internal and external dimensions and can also be used as a depth gauge.

Why is a vernier caliper used to measure length?

Although a common and easy method of measuring the length of a cylinder or any object is to use the metre rule but in many situations more accuracy and precision may be required. In such situations the use of a vernier caliper helps to overcome the shortcomings of the metre rule and provide a better way to measure the length.

What can you measure using a vernier caliper?

The vernier caliper is mainly used for measuring diameters of objects, both internal and external. The technique for measurement is to first read the main scale to the nearest division. Then the vernier scale is used to measure the distance between the two main scale divisions which provides more accurate measurements.

How many sizes are there for a vernier caliper?

IS:3651 recommends three types of vernier calipers A, B and C to meet the various needs of internal and external measurements upto 2000 mm with a vernier accuracy of 0.02, 0.05 and 0.1 mm and the recommended measuring ranges are 0-125, 0-200, 0-250, 0-300, 0-500, 0-750, 0-1000, 750-1500 and 750-2000 mm .

Is a vernier caliper more accurate than a micrometer?

A micrometer always stays more accurate than the Vernier caliper because of the mode through which the values get calculated. The primary tools used for the calculation for a Vernier caliper become a sliding Vernier scale to measure small changes. On the other hand, a small screw comes in handy when we calculate the readings on a micrometer.