I was doing some readings on American Journal of Physics today and came across an interesting article. Thought that this was rather timely as we had just finished a unit of "Measurements" in A-level Physics at my school. It was would be a good reading for students as it details the historical development of the vernier scale and the vernier callipers happen to be one instrument that students are suppose to know.
Details of the Article are as follows :
Author: Kwan, Alistair
Article Name: Vernier Scales and Other Early Devices for Precise Measurement
Journal : American Journal of Physics
Abstract: (taken from AJP)
Vernier scales have been extensively used since the 17th century. They replaced the Nonius scale, a unpopular device due to difficulty in its fabrication and use, and they coexisted alongside other types of scales that increased measurement precision and accuracy in complementary ways. The author suggests that the success of Vernier and diagonal scales is due not only to simplicity of fabrication, but also to their exploitation of visual hyperacuities.
Access: Subscription to AJP is needed.
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