影响复摆周期误差因素的分析研究

摘要

Aiming at the influence of compound pendulum swing angle, air buoyancy and composite resist-ance on compound pendulum period, this paper puts forward some corresponding periodic correction formula and cycle generally modified formula, and by using the given formula to combine with the experiment practice, carries out a quantitative assessment of the effects of mentioned factors on the measurement of compound pendu-lum. Analysis found that in college physical experiments, swing angle and air buoyancy’ s effects should be taken into account, and impact of composite resistance can be ignored.%针对复摆摆角、空气浮力和复合阻力对复摆周期的影响，分别给出了相应的周期修正公式和周期普遍修正公式，并利用给出的相关公式结合实验实际，定量评估了上述因素对测量复摆周期的影响，分析发现，在大学物理实验中，摆角、空气浮力的影响应该考虑，而复合阻力的影响可忽略不计。