Vernier Caliper Parts And Least Count 

In this article learn the measuring instrument vernier caliper. vernier is most important device used in mechanical and automobile industry. in indusry generally quality engineer carry vernier but the design engineer should be known veriner caliper. in this article explain in the vernier caliper. 

The Vernier caliper is an extremely precise measuring instrument it is used to measure internal and external distances extremely accurately – the error may be as little as 0.05 mm – depending on the make. The VERNIER is a small movable graduated scale for obtaining fractional parts of subdivisions on a fixed main scale of any measuring instrument. With a normal scale we may be able to measure down to 0.50 mm or so, while with a vernier scale the least count may be 0.10 mm. Usually vernier calipers have both imperial (inches) and metric (mm) scales.

A vernier caliper is a precision measuring tool. It can be used for three types of measurements, outside distance (such as the length of an object) , inside distance such as the width of a groove or the diameter of a large hole, and depth, such as the depth of a hole or the height of a step.

Vernier calipers come in many sizes. A common type measures 0 to 6 inches.

Vernier Caliper Parts

• Internal Jaws:- internal jaws is used measuring the inside measurement such as the diameter of pipe, rod and slot.
• External Jaws:- internal jaws is used to measuring the outside diameter, width, length of rod, pipe.
• Locking Screw:- locking screw is used to generally fix the jaws the object in position properly then take reading without any error.
• Vernier Main Sacle:- The main scale is the large scale which runs along the body of the vernier caliper.
• Vernier Caliper Scale:- in the vernier caliper is small scale attached to the main scale and scale is moved along to the main scale as the jaws open or closed 

Digital Vernier Caliper

Modern calipers are digital – in the sense it has an LCD display on which the reading appears – there is no possibility of human error in reading the scale

                                                                                                                                                   

The smallest vernier caliper that can be bought off-the-shelf is 150 mm – meaning the jaws open to a maximum of 150 mm. The largest ones go up to 2000 mm

Vernier Caliper Least Count Formula

The difference between the value of one main scale division and the value of one Vernier scale division is known as least count of the Vernier

Vernier Caliper Least Count Formula

Least count of vernier caliper is the smallest value that we can measure from this device. To calculate the least count of vernier caliper is the value of one main scale division divided by the total number of division on the vernier scale.

 Let’s assume if the value of one main scale division is 1mm and the total number of division on vernier scale 10mm then the least count will be 0.1mm. Thus least count is defined as the smallest distance that can be measured from an instrument.

Oleander Electronic Carbon Fiber Composites Digital Vernier Caliper 6 inch -Vernier Caliper with LED Screen Digital Caliper.

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