基于 PASCO系统的重力加速度测定

摘要

通过对传统实验仪器和测量方法的改造，利用 PASCO 系统转动传感器测量得到单摆角位移与时间的关系，并使用Science Workshop高功能的数据处理软件DataStudio进行实验数据智能获取，以及MathWorks多功能的数值计算软件M atlab进行数据点的最小二乘法拟合，进而实现对重力加速度的测量，结果表明实验测量值接近公认值。%The traditional experimental instrument and measurement method were improved by u-sing the PASCO system rotation sensor to realize real-time measurement of angular velocity and angu-lar displacement of the pendulum ,and using Science Workshop’s high performance data processing software Datastudio and MathWorks’s multi-function numerical calculation software Matlab .The gravity acceleration was accurately measured ,the measured value was very close to the accepted val-ue .