A digital micrometer can show precise measurements on a small scale. The most accurate models can measure the distance to 0.001 mm. Such precision when measuring the small objects ensures the accuracy of the entire project. For comparison, a Vernier micrometer has a hard time achieving a measurement of +/-0.017 mm. The Optical Micrometer is capable of making non-contact measurements on any surface, curved or flat. This instrument is useful for measuring depth of scratches, fractures, crazing, embedded voids and thickness of transparent materials (i.e. glass, acrylic).
A micrometer is a tool that measures the size of a target by enclosing it. Some models are even able to perform measurements in units of 1 μm. Unlike hand calipers, micrometers adhere to Abbe’s principle, which enables them to perform more accurate measurements. Micrometers feature a calibrated screw, or thread, which is located within the spindle and allows for the device’s exceptional levels of measuring accuracy. The screw within the micrometer is used for the conversion of particularly small distances for measurement.
Micrometers feature a calibrated screw, or thread, which is located within the spindle and allows for the device’s exceptional levels of measuring accuracy. The screw within the micrometer is used for the conversion of particularly small distances for measurement. Micrometers can provide a higher amount of precision and accuracy than calipers. Additionally, task-specific micrometers are available which can be used, such as inside micrometers that are used for measuring the internal diameters and thickness of cylinders and rods.