Precise ADJ-200 100-200 mm Measuring Range Micrometer

Precise ADJ-200 100-200 mm Measuring Range Micrometer is a precise and versatile measuring instrument used to measure lengths, diameters, thicknesses, and depths with an exceptionally high degree of accuracy. It is widely used in various fields, including manufacturing, engineering, metrology, and quality control. Here's an explanation of its key features and how it works:

Frame: The main body of a micrometer is a C-shaped frame that houses the essential components of the instrument. It provides stability and support for the measurement process.

Anvil and Spindle: Micrometers have two contact points: the stationary anvil and the movable spindle. The anvil is located at one end of the frame, while the spindle is attached to the thimble, which is rotated to make measurements. These contact points come into direct contact with the object being measured.

Thimble: The thimble is a rotating sleeve attached to the spindle. It is knurled to allow easy rotation by hand. Rotating the thimble causes the spindle to move toward or away from the anvil, enabling precise measurement adjustments.

Screw Mechanism: Inside the micrometer, there is a precision screw mechanism. When you rotate the thimble, the screw translates the rotational movement into linear movement, allowing for extremely fine adjustments in measurement.

Linear Scale: The barrel of the micrometer is marked with a linear scale, graduated in units of measurement such as millimeters (mm) or inches (in). This scale provides a coarse reading of the measurement.

Vernier Scale: Many micrometers also have a Vernier scale on the sleeve or barrel. The Vernier scale is a secondary scale with finer graduations that allow for more precise readings. By aligning the Vernier scale with the main scale, you can determine the measurement to a higher degree of accuracy.

How it works:
To measure an object with a micrometer, you open the jaws by rotating the thimble counterclockwise until the object can be placed between the anvil and the spindle. Then, you gently close the jaws by turning the thimble clockwise until they firmly grip the object. The measurement is read directly from the linear scale and Vernier scale, if applicable, to achieve high-precision results.

Micrometers are known for their exceptional accuracy, capable of measuring dimensions to within micrometers (μm) or thousandths of an inch. They are essential tools for machinists, toolmakers, and quality control professionals, ensuring that components meet strict tolerances and specifications in various industries.