摘要
微幅摆重力加速度仪采用容栅尺位移传感器测量摆长变化量,提高了测量精度,避免了摆球尺寸及重心偏移量的影响,微摆幅设计与高精度的计时装置,能使该仪器更准确地测量单摆的摆动周期,提高重力加速度的测量精度.
The gravity accelerator adopted the method of measuring pendulum length by capacitive digital caliper displacement sensor.The diagraph of variety of simple pendulum could be measured in high precision,and the influence of the vibrator dimension and the deviation of the gravity center could be avoided.The period of simple pendulum was measured more accurately by an additional timing installation with high precision;hence the precision of acceleration of gravity was raised.
出处
《物理实验》
北大核心
2011年第4期36-38,共3页
Physics Experimentation
关键词
容栅尺
加速度
周期
圆锥摆
微幅摆
capacitive digital caliper
acceleration
periodicity
pendulum of cone
pendulum of micro-swing
