Mechanical scales play a crucial role in industrial applications, and their sensitivity is one of the key indicators for measuring their performance. Sensitivity refers to the ability of a mechanical scale to respond to changes in the mass of an object. Mechanical scales with high sensitivity can quickly and accurately capture slight mass changes, thereby providing more accurate measurement results. However, the internal structure of the mechanical scale is complex, covering multiple components such as lever systems, transmission mechanisms and measuring devices, which are usually made of metal or other thermally sensitive materials. Under the influence of ambient temperature changes, these materials will experience thermal expansion and contraction, resulting in changes in the geometric dimensions, mechanical properties and electrical properties of the mechanical scale, which in turn affects its sensitivity.

The impact of temperature changes on the sensitivity of mechanical scales is mainly reflected in several aspects. First of all, the lever system is the core component of the mechanical scale, and its length, stiffness and stability directly determine the accuracy of the measurement results. When the temperature rises, the lever material will thermally expand, resulting in an increase in the length of the lever and a decrease in stiffness, which makes the lever produce greater deformation when under stress, reducing its sensitivity to mass changes, and thus resulting in a decrease in sensitivity. On the contrary, when the temperature drops, the lever will shrink. Although shortening length and increasing stiffness may increase sensitivity to some extent, an overly stiff lever system may also affect the accuracy and stability of the measurement.

Secondly, temperature changes also have a significant impact on the transmission mechanism and measuring device of the mechanical scale. The transmission mechanism is responsible for converting the mass of an object into the displacement or rotation angle of the lever, and its accuracy and stability directly affect the sensitivity of the mechanical scale. Temperature changes may cause thermal expansion and contraction of gears, bearings and other components in the transmission mechanism, increasing friction resistance and wear, thereby affecting the smoothness and accuracy of the transmission. In addition, temperature fluctuations may also affect the performance of electrical components such as sensors and circuit boards in the measuring device, resulting in unstable signal transmission or errors, further damaging the sensitivity of the mechanical scale.

The impact of temperature changes on the sensitivity of mechanical scales is also reflected in its long-term stability and reliability. In the extreme temperature environment for a long time, the internal materials of the mechanical scale may experience fatigue, aging or corrosion, resulting in reduced mechanical properties and reduced sensitivity. At the same time, temperature changes may also cause changes in the internal stress distribution of mechanical scales, resulting in deformation or damage to the components, thereby affecting their stability and reliability for long-term use.

In order to reduce the adverse impact of temperature on the sensitivity of mechanical scales, relevant industries should take a series of effective measures. First of all, when using mechanical scales, you should try to keep the ambient temperature stable and avoid placing the mechanical scale in an environment with severe temperature changes, such as outdoors, high-temperature workshops or places close to heat sources. The temperature stability of the surrounding environment of the mechanical scale can be maintained by installing constant temperature equipment or taking other insulation measures.

Secondly, choosing a mechanical scale with temperature compensation function is an effective solution. Some advanced mechanical scales are designed with temperature compensation systems that can automatically adjust measurement parameters to compensate for the impact of temperature changes on measurement results. This design significantly improves the measurement accuracy and stability of mechanical scales under different temperature environments.