Detection of tensile spring characteristics

The dimensions of a stretching spring include outer diameter, inner diameter, spring wire diameter, free length, and stretching length. During testing, it is often necessary to verify the load and stress of the spring. At this time, it is necessary to consider the free length and stretching length of the stretching spring, which is the length of the spring in the unloaded state and the maximum stretching state.
The load Fs of the tensile spring is tested by taking the maximum allowable load of the spring as the test load; stress τ s. The maximum allowable stress on the spring is taken as the test stress. However, there may be deviations in specific testing, so it is important to pay attention to the selection of measurement tools and the consideration of limit deviations. In addition, on the basis of load measurement, attention should also be paid to the measurement of spring stiffness, which refers to the load change per unit of deformation.
For tension springs, the corresponding model should be selected based on the specific requirements of the instrument to be applied. Pay attention to whether the characteristics of the spring meet the standards and relevant requirements.