In the modern industry, the accuracy and sensitivity of mechanical scales are significantly affected by a variety of environmental factors, among which temperature, humidity, air pressure and vibration are the four most critical aspects. A deep understanding and effective management of these factors is crucial to ensuring the measurement accuracy of mechanical scales.

First of all, temperature, as the primary environmental factor affecting the sensitivity of mechanical scales, cannot be underestimated. The internal structure of a mechanical scale is composed of metal or other thermally sensitive materials, which undergo thermal expansion and contraction when temperature changes, resulting in changes in its geometric dimensions and mechanical properties. For example, after the lever expands under heat, its length and stiffness change, directly affecting its ability to respond to weight changes. In addition, temperature fluctuations may adversely affect electronic components inside mechanical scales, such as sensors and circuit boards, resulting in instability in signal transmission, thereby reducing measurement accuracy. Therefore, in order to ensure the performance of the mechanical scale, it is recommended to maintain the stability of the ambient temperature during use and avoid severe temperature fluctuations to maintain the reliability of the measurement results.

Secondly, humidity is also an important environmental factor affecting the sensitivity of mechanical scales. Under high humidity conditions, the internal parts of the mechanical scale may experience rust or corrosion, which will not only reduce the surface quality of the parts, but also have a negative impact on their mechanical properties. Rust and corrosion increase frictional resistance between parts, affecting the smooth operation of the transmission mechanism, and may change the size and shape of the parts, thereby affecting the accuracy of the scale. In addition, humidity may also cause moisture to adhere to the surface of the weighing object, increasing the actual weight of the object, causing measurement errors. Therefore, when using mechanical scales in humid environments, effective moisture-proof measures must be taken, such as using moisture-proof boxes or regularly ventilating and drying, to ensure that the sensitivity and accuracy of the mechanical scale are not affected.

Although the air pressure changes have relatively little impact on the sensitivity of mechanical scales, they still need to attract attention in specific situations. Changes in air pressure will affect the density of the air, thereby changing the buoyancy that weighs the object. In high-precision weighing experiments, this slight buoyancy change may lead to significant deviations in the measurement results. In addition, in high altitude areas, due to the low air pressure, the performance of the mechanical scale may be affected, such as decreased sensor sensitivity, reduced measurement range, etc. Therefore, when performing high-precision weighing, the influence of air pressure must be taken into account and corrections should be made when necessary to ensure the accuracy of the measurement results.

Finally, vibration is one of the important factors affecting the sensitivity of mechanical scales. In an industrial environment, vibrations generated by equipment operation, transportation and other activities may interfere with the normal operation of the mechanical scale. Vibration will cause relative movement between the internal parts of the mechanical scale, increase friction resistance and wear, and thus affect the smooth operation of the transmission mechanism and measurement accuracy. In addition, vibration may interfere with the operating state of the sensor, resulting in unstable signal transmission or errors. In order to reduce the impact of vibration on the sensitivity of mechanical scales, it is recommended to place the mechanical scale on a stable basis and try to stay away from the vibration source as much as possible. At the same time, the use of anti-vibration devices or shock absorbing tables can also effectively improve the measurement accuracy of the mechanical scale.