Understanding the 5 principles of horizontal tensile testing machine

Understanding the 5 principles of horizontal tensile testing machine

Tension testerUsed for the tensile performance test of materials, tensile machines are divided into digital and liquid crystal display tensile testing machines. The structural types are horizontal tensile machines. Our company's technicians are horizontal.Tension testerThe following introduction is made to the five principles of the layout of the load sensor strain gauge and the bridge connection:

1. The strain gauge should be arranged in the part and direction of the normal strain and should be arranged symmetrically.

2. When connecting a bridge, the strain symbols of adjacent bridge arms should be made opposite, and the strain symbols of opposite arms should be the same.

3. During operation, the strain values ​​of the 4 bridge arms are equal, otherwise it will cause nonlinearity in the output characteristics of the bridge itself.

4. Try to cancel out the influences of various interferences, such as lateral forces.

5. When the ambient temperature changes, the impact on each strain gauges is consistent (heat transfer and heat dissipation conditions are consistent), and the temperature gradient between each strain gauges is as small as possible.

According to the above principles, horizontalTension testerThe layout and bridge connection of the strain gauge will achieve satisfactory results.