摘要
对实验室现有声速测定仪进行了改进,利用电机控制和条码位移测量技术结合数字信号处理算法实现了声速的自动化测量.
An improvement was made to the original sound velocity detector to implement auto- matic measurement via the technology of motor control and barcode displacement measurement, combined with digital signal processing unit.
出处
《物理实验》
2013年第5期30-32,共3页
Physics Experimentation
关键词
声速
波节点
条码定位
sound velocity
standing wave node
barcode position
