Как пользоваться микрометром

Vernier Micrometer Operating Instructions NTC "Expert" - Accredited Metrology Service. http://www.ntcexpert.ru/m55 A micrometer is an instrument for measuring the external dimensions of parts with high precision. The micrometer consists of a frame made of stainless, high-alloy tool steel. The frame contains a movable screw that moves by rotating in a nut. The part being measured is clamped between a fixed shoulder in the frame and the screw. The reading is taken from a scale indicating the number of complete screw revolutions and fractions thereof. With this measurement method, the accuracy is 2 µm. A micrometer is used to accurately determine the cross-section of small parts and sheet materials. Micrometers are available in several types: smooth, lever, and electronic.