摘要
对重力加速度测量仪进行了重新设计,用条形重物块作为自由落体避免了用小球作重物时经过光电门因偏心带来的测量误差,用弹簧夹物装置代替电磁铁释放重物,消除了电磁铁剩磁对重物的吸引作用,提高了测量精度.
The instrument for measuring acceleration of gravity is redesigned. A strip block is used instead of the ball to eliminate the measurement error caused by the trajectory deviation of the ball when passing the photo gate. And a spring clip is used to replace the electromagnet to eliminate the effect of remanence. These improvements can increase the measurement precision of the instrument.
出处
《物理实验》
2007年第11期26-27,共2页
Physics Experimentation
关键词
重力
加速度
自由落体
gravity
acceleration
freely falling body
