depth-sounder的意思|示意

Echo Sounder is a kind of acoustic measuring depth equipment, which can measure depth with the time between transmitted wave and echo on condition in which the speed of ultrasonic is fixed.

回声测深仪是用来测量水深的一种声学测量设备，其以水中超声波的传播速度为确定条件，利用发射波与反射回波时间差来测量水深。

When passing One Fathom Bank, check the depth and variable sand waves below the sea level all the time by echo sounder.

通过一托浅滩时，要一直测深校时水深及海面下多变的沙纹。

As in the data processing, the output of depth sounder is not stable, causing a high probability of error.

在数据处理方面，测深仪输出的测深数据并不稳定，错误数据出现的概率较大。