How to read a vernier scale

Each interval marking signifies 30 minutes or 12 of a degree. The top number on the outer scale gives the angle to the right.

The larger ones tighten around an.

How to read a vernier scale. How to Read a Vernier caliper Step 1. This is the proper way to hold a caliper. Use your thumb to slide the jaws open and closed.

So lets read a measurement off of the caliper. First a quick math refresher. We will just use a two steps method to get the measurement reading from this.

To obtain the main scale reading. Look at the image above 21 cm is to the immediate left of the zero on the vernier. To obtain the vernier scale reading.

Look at the image above and look closely for an alignment of the. Most sextants include a vernier scale next to the drum scale. This extra scale is used to interpret the proportional parts of the drum scale reading.

If the index mark for example lies about halfway between 47 and 48 as shown in fig. A it is the vernier reading that will tell us if this should be 474 475 or 476. A Vernier allows a precise reading of some value.

In the figure to the right the Vernier moves up and down to measure a position on the Scale. This could be part of a barometer which reads atmospheric pressure. The pointer is the line on the vernier labelled 0.

Reading a Vernier Scale measurement on a Theodolite. The outer scale on the Vernier is fixed while the inner scale is rotated with the scope of the theodolite. The top number on the outer scale gives the angle to the right.

This will give the angle of the arc that is drawn from. Using the Caliper 1. Slide one of the jaws against the object.

The caliper has two types of jaws. The larger ones tighten around an. Read the main scale where it lines up with the sliding scales zero.

The main scale on a Vernier caliper typically. Read the Vernier scale. Find the first.

Follow these steps to read the vernier scale. Read the main scale. Last whole or half mark increment visible Read the secondary scale measurement.

Value of the scale that lines up with the center line of the main scale Add the two measurements together. Vernier micrometers can read to one ten-thousandth of an inch 00001. Consider the micrometer reading shown below.

If this was a 0 - 1 micrometer it would read somewhere between 0255 and 0256. 250 on the Sleeve with more than 5 but less than 6 on the Thimble. Look at the Vernier scale on your theodolite or refer to the Vernier model in the References.

The outer circle on the scale is fixed while the inner scale is rotated as the scope of the theodolite is rotated. Each interval marking signifies 30 minutes or 12 of a degree. Study the outer scale.

Count how many divisions from 0 to the two lines of both main and vernier scale that line up. In this case the red line shows it is. The result is 15 divisions on the metric vernier and 8 divisions on the imperial vernier.

So 15 x 005mm 0075 mm metric or 0inch imperial. How to read a vernier caliper 1080p Full HD. It cant be taught any better.

Having trouble reading a vernier caliper. Watch this videoTake a quick test. To read a Vernier caliper.

When you measure an object with a Vernier caliper the Vernier scale will slide to the right. Read the large number division first from the main scale to the left of the zero of the Vernier scale. Find the largest whole inch mark to the left side of this index line.

Main at top vernier at bottom. It reads 358 002 mm by adding 300 mm left red mark on the fixed main scale to vernier 058 mm right red mark. The main scale reading is that to the left of the zero on the vernier scale.

The vernier reading is found by locating the best aligned lines between the two scales. Take a beam and attach it to the outer jaws of the differentiator between the two spots. Keep it the same and tighten the watch.

Then hold the vernier and note the number directly below its vernier scale. After multiply the value of the Vernier scale by the point at which the Vernier scale and the principal scale coincide. For rough measurements where the accuracy only needs to be to the closest degree use the 0-mark on the upper scale to find the angle reading on the lower scale.

The lower scale is marked in 1-degree increments. In more critical applications if the 0-mark on the upper scale falls somewhere between two marks on the lower scale the user may want to know the exact angle in terms of degrees and arc-minutes. Verniers allow the user to make precise fractional measurements of distance.

To do this you need a ruler with two scales. One scale is moveable and marked in the ordinary manner in millimetres inches or degrees or whatever you fancy. The other ruler is fixed and graduated in a special way depending on the resolution required.