Why does a laboratory analytical balance need to be aged?

1. Eliminating mechanical stress: During the manufacturing and assembly process, internal stress is generated in the mechanical components of the balance. The aging process allows these stresses to gradually release, making the mechanical structure more stable and reducing measurement errors and component deformation caused by stress.
2. Stabilizing the performance of electronic components: In the initial stage of use, the performance of electronic components may not be stable. Through aging, electronic components can reach a more stable working state, reducing the probability of electronic component failure and improving the accuracy and reliability of measurements.
3. Optimizing measurement accuracy: Long-term aging operation helps to identify and correct potential defects in the design and manufacturing of the balance, ensuring that the measurement accuracy of the balance reaches the best level before use.
4. Improving repeatability: After aging, the balance will have better repeatability when measuring the same mass multiple times, ensuring the consistency and repeatability of experimental data.
5. Adapting to environmental conditions: Keeping the balance in operation for a certain period of time enables it to better adapt to the temperature, humidity and other environmental conditions in the laboratory, reducing the impact of environmental factors on measurement results.
In conclusion, aging treatment is of great significance for ensuring the performance and measurement quality of laboratory analytical balances.

25. 实验室分析天平为什么要进行老化？：

1. 消除机械应力：在制造和组装过程中，天平的机械部件会产生内部应力。老化过程可以让这些应力逐渐释放，使机械结构更加稳定，减少因应力导致的测量误差和部件变形。

2. 稳定电子元件性能：电子元件在初期使用时，性能可能不够稳定。通过老化，能促使电子元件达到更稳定的工作状态，降低电子元件故障的概率，提高测量的准确性和可靠性。

3. 优化测量精度：长时间的老化运行有助于发现和纠正天平在设计、制造中的潜在缺陷，使天平的测量精度在使用前达到最佳水平。

4. 提高重复性：经过老化，天平在多次测量相同质量时的结果重复性会更好，确保实验数据的一致性和可重复性。

5. 适应环境条件：让天平在一定时间内处于工作状态，能使其更好地适应实验室的温度、湿度等环境条件，减少环境因素对测量结果的影响。

综上所述，老化处理对于保证实验室分析天平的性能和测量质量具有重要意义。