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mai chong xiang wei fa sheng su yi
Pages: 13-19
Year: Issue:  1
Journal: Ocean Technology

Abstract: <正> 本文介绍一台供水面船只使用的声速测量仪,它是在相位法的基础上以脉冲波代替正弦波,以"时延差"代替"相位差"确定水中声速的方法,我们暂称它为脉冲"相位法"。直接由X-Y记录仪记录声速随深度垂直变化曲线。声速测量范围为1435-1542米/秒,单量程复盖,测量误差不大于±0.75米/秒,探头最大工作深度为200米,测量误差为全程的2%。一、引言声波在海洋中的传播途径占声速在垂直断面内的梯度有密切关系。海水中的声速是温
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