View Here : How To Use A Micrometer
Familiarize yourself with the anatomy of a micrometer. Some parts are stationary while others are movable. Clean the anvil and spindle before beginning. Use either a clean sheet of paper or soft cloth, and hold it between the anvil and the spindle.
A quick guide on how to read a micrometer screw gauge.Similar to the way a vernier caliper is read, a micrometer reading contains two parts:. the first part is contributed by the main scale on the sleeve; the second part is contributed by the rotating vernier scale on the thimble
Types of Micrometers. The screw thread type of a gadget is a type of outside micrometer applied to measure not only the diameter of screws, but also the pitch of their threads. The item to be measured is situated betwixt the stationary end of the gadget, called the anvil, and the moving end, called the spindle.
How to read a micrometer graduated in 0.001". Micrometer thimble showing 0.276 inch. In the picture above, the thimble is positioned to where it is setting between the 2nd and 3rd numbered graduation thus 2 x 0.100 = 0.200 . Past that there are three additional sub-divisions, which is 3 x .025 = 0.075 .
We show you how to use a simple analog micrometer to very precisely measure small lengths. http://demos.smu.ca.
In a micrometer, the object you wish to measure is clamped between the anvil (the stationary end of the clamp) and the spindle (the moving part of the clamp). Once the object is secured in the clamp, you use the numbering system on the thimble (the handle portion) to find your measurement.
How to Read a Metric Micrometer. Read the linear gauge, which is in millimeters, and then read the barrel gauge. The barrel gauge will be divided into increments depending on the step size of the linear gauge. For metric micrometers that use millimeters in half-step increments, the barrel gauge will have 50 increments. The barrel gauge is abbreviates so that "28" equals 0.28 mm.