What Is A Tape Measure？

January 05, 2023

What Is A Tape Measure？

High quality tape measure is a commonly used measuring tool in daily life. We often see steel tape, commonly used in construction and decoration, but also one of the essential household tools. Divided into fiber tape measure, tape measure, waist measure and so on. Luban ruler, wind and water ruler, text meter also belong to the steel tape.

Principle of
The standard tape measure can be rolled up because there is a spring inside the tape measure. When pulling out the length of the measurement, it is actually elongating the length of the ruler and the spring. Once the measurement is completed, the spring inside the tape measure will automatically shrink, and the ruler will also shrink under the action of the spring force, so the tape measure will be rolled up.

Characteristics of
One, high quality tape measure deformation is too large will not fail. Why didn't it fail; The spring in the standard tape measure is very long, and its completely relaxed to completely tight interval is large. The whole trip of the tape measure includes it, and there is a margin at both ends, so the tape measure will not fail.
Two, there is no difference between pulling one meter long and pulling two meters long; The winding of the tape measure is very thin, and the deformation when it is tightened is also very small, so the reaction force is very small, and the change of force can not be felt when the ruler is stretched.

Scale of scale
The tape measure and the standard tape measure have the same metric scale. One centimeter of the tape measure equals one centimeter of the tape measure.
The opposite side of the tape measure is the market scale: city scale, city inch; The front of the tape measure is divided into two parts, one side is the metric scale (meters, centimeters), one side is the imperial scale (feet, inches).
The number on the tape measure
The numbers on the high-quality tape measure are divided into two rows, one row of numbers is centimeter /CM, one row of numbers is inch, 1CM is about 0.3937 inches, 1 inch is about 2.54CM, so the number with the shorter distance between the two numbers is centimeter, the longer is inch, and the font of the number with the unit centimeter is also smaller than the inch, 100cm =1 meter, The common unit in use is centimeters.

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