what is screw gauge
Answers
Explanation:
The Screw gauge is an instrument used for measuring the diameter of a thin wire or the thickness of a sheet of metal. It consists of a U-shaped frame fitted with a screwed spindle which is attached to a thimble.
Uses of screw gauge
The thickness of a metal sheet is expressed in gauge number. By finding the thickness of a metal sheet in m.m. by using a screw gauge, we can know its gauge number. For example, if the thickness of a sheet is 5.16 m.m., then the gauge number will be 6. If the thickness of a sheet is 0.953 mm, then the gauge number will be 10. To know gauge number for various thickness use a conversion table.
The diameter of a wire is expressed in American wire gauge size. By finding the diameter of a wire after removing the insulation of the wire in mm by using a screw gauge, the gauge size can be obtained. For example, if the metric size of a wire is 52 mm, then A.W.G. size will be '0'. If the metric size of a wire is 5 mm, then A.W.G., size will be 10. To know A.W.G. size for various metric sizes of a wire use a conversion table.
ANSWER:
A micrometer, sometimes known as a micrometer screw gauge, is a device incorporating a calibrated screw widely used for accurate measurements of components.