## what is a vernier caliper?

Vernier caliper is one of the precise measuring tools and one of the types of calipers that allows the operator to use a fixed ruler (in centimeters, millimeters, and inches) and a moving part called the size vernier. Make the measurement with the accuracy of hundredths of a millimeter.

you know the core **use of Vernier Calipers** is for measuring the distance between two opposite sides of a surface. We can measure the internal and external dimensions and even the height of an object with accuracy.

When it comes to precision measurements, many professionals turn to calipers. You can choose between **vernier caliper**, digital caliper, and dial caliper based on your specific needs.

### Advantages of vernier calipers

- The accuracy of the simple caliper is higher than the rest of the calipers.
- By using vernier calipers, you can measure in 2 different scales (mm, inches) at the same time.
- Due to the simplicity of the design, simple calipers can be used on a variety of surfaces and conditions.
- The useful life of vernier calipers is long due to the structure and the material of the body.
- The use of calipers is very common and the price of vernier calipers is very competitive and reasonable due to the large number of manufacturers.
- Due to its simplicity compared to other types of calipers, the price of vernier calipers is cheaper and more suitable.

## How to read a vernier caliper?

**Working with a caliper** is very simple and at the same time very important, because if there is a mistake in the measurement, many problems may arise.

- Close the caliper completely to ensure that the two jaws are aligned with each other and there is no gap between them.
- Place the target piece precisely between the jaws of the caliper and make sure that they are in contact with the target piece.
- Now tighten the jaw-fixing screw so that the size does not change. Then move on to
**caliper reading**. - Find the accuracy of the caliper. (For this, it is enough to divide 1 by the number of vernier divisions. For example, if your vernier caliper is divided into 20 parts, its accuracy will be 0.05 mm.)
- First, read the number that shows the zero line of the moving part and remember or write it down.
- Now, to get the decimal part, carefully examine the lines of the moving part and the main ruler to find a line of the moving part that completely coincides with the line of the main ruler.
- Now you need to multiply this number by the accuracy of the caliper, which here is 0.05 mm. Although you can see the number 6 in the picture below, if you look carefully, you will notice that the vernier is numbered as one in the middle, so you have to multiply the number 6 by 2 and then the number 12 by 0.05, which Multiply the accuracy of the caliper.
- Now add the obtained number to the original number. The result will be the final size.