what is the principal behind the vernier calipers.?

Question

we know how to use vernier calipers..but i want to know wat is the basic theory behind its working..

Answer 1

The principle of the vernier caliper (or any vernier scale) is to divide a given distance into n and n+1 smaller distances, with each scale movable with respect to the other. Matching up the etched marks on each scale then gives a 1/n increment of additional accuracy in the measurement.

Answer 2

A Vernier calliper is an instrument used for measuring the size of an object , like using a ruler. The special thing about a Vernier is the Vernier scale which has 1cm divided into 10 lines 1mm apart on the top and 1cm divided into 9 lines on the bottom ( each of the 9 divisions are 1.1 mm apart ) By seeing which lines line up from the top and bottom scale and counting them (ie the third row would indicate 0.3 mm in the decimal part of the measurement) you can more accurately read the size to 0.1 mm than you can with a ordinary scale calliper. These have now become old fashioned with the use of digital callipers that can display to 0.01 mm with no scale to read.

Answer 3

Principle Of Vernier Callipers

Answer 4

Vernier Caliper Theory

Answer 5

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It measures distance to an accuracy of about 0.01mm. Its nifty because you can grab the outside of something with the large prongs or stick the little ones inside something for if you wanted to measure a gap or an internal radius.