How Do You Read Vernier Calipers To A Thousandth Of An Inch?
Calipers that are capable of accuracy to a thousandth of an inch are also called caliper micrometers. The devices are useful in making highly accurate measurements, especially on cylindrical and spherical objects, where accuracy can be difficult. There are two basic ways to achieve such accuracy. The scales can be subdivided into very tiny increments, or a Vernier scale can be used. For accuracy to a thousandth of an inch, a micrometer will have a regular scale divided into hundredths and the Vernier scale to thousandths. Open the calipers slightly wider than the object to be measured. Close the calipers around the object gently and lock the calipers so they can’t shift as you take the reading. Find the “zero” line on the Vernier scale. Most often, this line is also the base line for the regular scale readings. Record the number on the regular scale that this “zero” line indicates. If it is in between tick marks on the regular scale, record the lower of the two numbers represented by t
