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EspañolTemperature influence of steel tape measure
The main structure of the steel tape measure is a whole steel strip with certain elasticity, and the steel strip has the characteristics of thermal expansion and contraction.
(1) When the temperature of the standard steel tape measure and the tested steel tape measure are both 20%, the dimensional error caused by the temperature is zero.
(2) When the standard steel tape measure and the tested steel tape measure are of the same material and temperature, the dimensional error caused by the temperature is proportional to the thermal expansion coefficient and temperature.
(3) When the standard steel tape measure and the tested steel tape measure have the same material and different temperatures, the dimensional error caused by the temperature is proportional to the thermal expansion coefficient and the temperature difference between the two feet.
(4) When the standard steel tape measure and the tested steel tape measure are of different materials and have the same temperature, the dimensional error caused by the temperature is proportional to the difference in thermal expansion coefficient between the two feet and the temperature of the two feet.
(5) When the material and temperature of the standard steel tape measure and the tested steel tape measure are different, the dimensional error caused by the temperature is proportional to the difference in thermal expansion coefficient between the two feet and the temperature difference between the two feet.
(1) When the temperature of the standard steel tape measure and the tested steel tape measure are both 20%, the dimensional error caused by the temperature is zero.
(2) When the standard steel tape measure and the tested steel tape measure are of the same material and temperature, the dimensional error caused by the temperature is proportional to the thermal expansion coefficient and temperature.
(3) When the standard steel tape measure and the tested steel tape measure have the same material and different temperatures, the dimensional error caused by the temperature is proportional to the thermal expansion coefficient and the temperature difference between the two feet.
(4) When the standard steel tape measure and the tested steel tape measure are of different materials and have the same temperature, the dimensional error caused by the temperature is proportional to the difference in thermal expansion coefficient between the two feet and the temperature of the two feet.
(5) When the material and temperature of the standard steel tape measure and the tested steel tape measure are different, the dimensional error caused by the temperature is proportional to the difference in thermal expansion coefficient between the two feet and the temperature difference between the two feet.
