摘要
深入分析了旋转液体特性实验测量重力加速度时的不确定度和各项直接测量对测量结果的影响,发现仪器结构的稳定性对实验结果影响较大,出射光线折射偏移也会产生较大系统误差,偏移误差可以通过迭代方法计算并基本消除。文中对其他各量也提出了改进测量方法。用新方法显著降低了测量的不确定度和与公认值相比较的相对误差,满足了定量物理实验测量要求。
This article analyzes the uncertainty when the rotating liquid characteristic is used to measure the gravity acceleration and the influence of each direct measurement on the measurement result, discovers that the stability of the instrument structure has big influence on experimental result, the exit ray refraction displacement will also produce a large-scale system error, the offset error may be eliminated basically through the iterative method computation. It also proposed the improvement measuring technique for other various quantities . The new method can obviously reduce the survey uncertainty and the relative error , satisfying the request of the quota physical test.
出处
《实验科学与技术》
2009年第3期46-48,共3页
Experiment Science and Technology
关键词
旋转
液体
实验
不确定度
改进
revolves
liquid
experiment
uncertainty
improvement
