Introduction to the major factors influencing the weighing sensor performance

As weighing sensor elastomer material of metal complex, under the action of external force, between micro particles can produce micro strain. When the external force disappears, micro strain followed disappear. Materials of the original state, however, can fully recover depends on the metal material elastomer. Weighing sensor factory engineer said: if the curve of load and unload forces do not overlap, the difference, the greater the lag. Can understand the reasons of the hysteresis, by selecting the appropriate metal materials and using advanced heat treatment to reduce the hysteresis, increase the elastic limit. At present, the popular 40 crnimoa material has been widely used in the domestic market. Through the reasonable heat treatment process can obtain good comprehensive mechanical properties. Weighing sensor is sensitive to strain gauge its products mainly include gate, basal, coating, and lead. Through sensitive resistance strain effect of grid, the elastomer strain into the change of the resistance value. If material itself has a lag, the strain gauge is lagging behind. At present, the world famous manufacturer in producing strain slices of strain are fully considering the hysteresis effect, and the compensation measures were taken, the hysteresis effect reduced to the lowest level that is choosing a weighing sensor must be considered a factor. When elastomers and strain gauge form good after contact, sensor still need to use processing of sealant, is mainly used for fixed circuit and sealing components, used to prevent the negative impact of the external environment on the sensor performance. Weighing sensor factory engineer said, at last, on the face of it, after curing sealant is relatively soft, almost negligible relative strength of the elastomer. If applied to load a small scale, the effect must be considered. When a smaller force to bear on elastomer, elastic body deformation is small, the thickness of the sealant has a certain degree of influence on deformation.
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