vernier scale
vernier

Transversals have been replaced in modern times by vernier scales.

In the interim between transversals and the vernier scale, the nonius system, developed by Pedro Nunes, was used.

Vernier refined this process and gave us the vernier scale.

The eyepiece is fitted with fine cross-hairs to fix a precise position, which is then read off the vernier scale.

He made the last adjustment, balancing himself against theDido's slight pitching, read the figures off the vernier scale, and consulted his tables.

Pierre Vernier (1580-1637) was inventor and eponym of the vernier scale used in measuring devices.

It is given by value of smallest division on main scale divided by total number of divisions on vernier scale.

The user then reads the finer vernier scale (see diagram), which measures between the smallest graduations on the fixed scale-providing much greater accuracy.

He was inventor and eponym of the vernier scale used in measuring devices.

The use of the vernier scale allowed the scale to be read to one minute, so improved the marketability of the instrument.