How do you read the scale of a Vernier caliper?
Follow these steps to read the vernier scale:
- Read the main scale. Look for the last whole increment visible before the 0 (zero) mark.
- Read the secondary scale (Vernier) measurement. This is the division tick mark that lines up best with a mark on the main scale.
- Add the two measurements together.
How do vernier calipers work?
The vernier scale has finer divisions; in a standard basic vernier like in Fig 2., 10 divisions of the vernier scale correspond to 9 divisions of the main. The vernier divisions are marked 0 through 9 and then 0 again. This means that the divisions on the vernier are separated by 0.9mm.
How to read a vernier caliper measurement reading?
In order to read the measurement readings from vernier caliper properly, you need to remember two things before we start. For example, if a vernier caliper output a measurement reading of 2.13 cm, this means that: The vernier scale contributes the second decimal place to the reading (E.g.
What are the jaws of a vernier caliper used for?
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. The main scale is fixed in place, while the Vernier scale is the name for the sliding scale that opens and closes the jaws. 2
What happens if there is zero error on a vernier caliper?
If there is zero error then the measurement is not accurate. To check it, close the jaws carefully and find out whether the mark 0 of both scales (vernier and main scale) line up. If they are not aligned up, there is zero error.
How do you find the additional digits on the vernier scale?
Read the Vernier scale. Find the first mark on the Vernier scale that lines up perfectly with any line on the main scale. That mark tells you the value of the additional digits. For example, the 14 on the Vernier scale aligns with a line on the main scale.